| O00 | Ectopic pregnancy |
| O00.0 | Abdominal pregnancy |
| O00.1 | Tubal pregnancy |
| O00.2 | Ovarian pregnancy |
| O00.8 | Other ectopic pregnancy |
| O00.9 | Ectopic pregnancy, unspecified |
| O01 | Hydatidiform mole |
| O01.0 | Classical hydatidiform mole |
| O01.1 | Incomplete and partial hydatidiform mole |
| O01.9 | Hydatidiform mole, unspecified |
| O02 | Other abnormal products of conception |
| O02.0 | Blighted ovum and nonhydatidiform mole |
| O02.1 | Missed abortion |
| O02.8 | Other specified abnormal products of conception |
| O02.81 | Inappropriate change in quantitative human chorionic gonadotropin (hCG) in early pregnancy |
| O02.89 | Other abnormal products of conception |
| O02.9 | Abnormal product of conception, unspecified |
| O03 | Spontaneous abortion |
| O03.0 | Genital tract and pelvic infection following incomplete spontaneous abortion |
| O03.1 | Delayed or excessive hemorrhage following incomplete spontaneous abortion |
| O03.2 | Embolism following incomplete spontaneous abortion |
| O03.3 | Other and unspecified complications following incomplete spontaneous abortion |
| O03.30 | Unspecified complication following incomplete spontaneous abortion |
| O03.31 | Shock following incomplete spontaneous abortion |
| O03.32 | Renal failure following incomplete spontaneous abortion |
| O03.33 | Metabolic disorder following incomplete spontaneous abortion |
| O03.34 | Damage to pelvic organs following incomplete spontaneous abortion |
| O03.35 | Other venous complications following incomplete spontaneous abortion |
| O03.36 | Cardiac arrest following incomplete spontaneous abortion |
| O03.37 | Sepsis following incomplete spontaneous abortion |
| O03.38 | Urinary tract infection following incomplete spontaneous abortion |
| O03.39 | Incomplete spontaneous abortion with other complications |
| O03.4 | Incomplete spontaneous abortion without complication |
| O03.5 | Genital tract and pelvic infection following complete or unspecified spontaneous abortion |
| O03.6 | Delayed or excessive hemorrhage following complete or unspecified spontaneous abortion |
| O03.7 | Embolism following complete or unspecified spontaneous abortion |
| O03.8 | Other and unspecified complications following complete or unspecified spontaneous abortion |
| O03.80 | Unspecified complication following complete or unspecified spontaneous abortion |
| O03.81 | Shock following complete or unspecified spontaneous abortion |
| O03.82 | Renal failure following complete or unspecified spontaneous abortion |
| O03.83 | Metabolic disorder following complete or unspecified spontaneous abortion |
| O03.84 | Damage to pelvic organs following complete or unspecified spontaneous abortion |
| O03.85 | Other venous complications following complete or unspecified spontaneous abortion |
| O03.86 | Cardiac arrest following complete or unspecified spontaneous abortion |
| O03.87 | Sepsis following complete or unspecified spontaneous abortion |
| O03.88 | Urinary tract infection following complete or unspecified spontaneous abortion |
| O03.89 | Complete or unspecified spontaneous abortion with other complications |
| O03.9 | Complete or unspecified spontaneous abortion without complication |
| O04 | Complications following (induced) termination of pregnancy |
| O04.5 | Genital tract and pelvic infection following (induced) termination of pregnancy |
| O04.6 | Delayed or excessive hemorrhage following (induced) termination of pregnancy |
| O04.7 | Embolism following (induced) termination of pregnancy |
| O04.8 | (Induced) termination of pregnancy with other and unspecified complications |
| O04.80 | (Induced) termination of pregnancy with unspecified complications |
| O04.81 | Shock following (induced) termination of pregnancy |
| O04.82 | Renal failure following (induced) termination of pregnancy |
| O04.83 | Metabolic disorder following (induced) termination of pregnancy |
| O04.84 | Damage to pelvic organs following (induced) termination of pregnancy |
| O04.85 | Other venous complications following (induced) termination of pregnancy |
| O04.86 | Cardiac arrest following (induced) termination of pregnancy |
| O04.87 | Sepsis following (induced) termination of pregnancy |
| O04.88 | Urinary tract infection following (induced) termination of pregnancy |
| O04.89 | (Induced) termination of pregnancy with other complications |
| O07 | Failed attempted termination of pregnancy |
| O07.0 | Genital tract and pelvic infection following failed attempted termination of pregnancy |
| O07.1 | Delayed or excessive hemorrhage following failed attempted termination of pregnancy |
| O07.2 | Embolism following failed attempted termination of pregnancy |
| O07.3 | Failed attempted termination of pregnancy with other and unspecified complications |
| O07.30 | Failed attempted termination of pregnancy with unspecified complications |
| O07.31 | Shock following failed attempted termination of pregnancy |
| O07.32 | Renal failure following failed attempted termination of pregnancy |
| O07.33 | Metabolic disorder following failed attempted termination of pregnancy |
| O07.34 | Damage to pelvic organs following failed attempted termination of pregnancy |
| O07.35 | Other venous complications following failed attempted termination of pregnancy |
| O07.36 | Cardiac arrest following failed attempted termination of pregnancy |
| O07.37 | Sepsis following failed attempted termination of pregnancy |
| O07.38 | Urinary tract infection following failed attempted termination of pregnancy |
| O07.39 | Failed attempted termination of pregnancy with other complications |
| O07.4 | Failed attempted termination of pregnancy without complication |
| O08 | Complications following ectopic and molar pregnancy |
| O08.0 | Genital tract and pelvic infection following ectopic and molar pregnancy |
| O08.1 | Delayed or excessive hemorrhage following ectopic and molar pregnancy |
| O08.2 | Embolism following ectopic and molar pregnancy |
| O08.3 | Shock following ectopic and molar pregnancy |
| O08.4 | Renal failure following ectopic and molar pregnancy |
| O08.5 | Metabolic disorders following an ectopic and molar pregnancy |
| O08.6 | Damage to pelvic organs and tissues following an ectopic and molar pregnancy |
| O08.7 | Other venous complications following an ectopic and molar pregnancy |
| O08.8 | Other complications following an ectopic and molar pregnancy |
| O08.81 | Cardiac arrest following an ectopic and molar pregnancy |
| O08.82 | Sepsis following ectopic and molar pregnancy |
| O08.83 | Urinary tract infection following an ectopic and molar pregnancy |
| O08.89 | Other complications following an ectopic and molar pregnancy |
| O08.9 | Unspecified complication following an ectopic and molar pregnancy |
| O09 | Supervision of high risk pregnancy |
| O09.0 | Supervision of pregnancy with history of infertility |
| O09.00 | Supervision of pregnancy with history of infertility, unspecified trimester |
| O09.01 | Supervision of pregnancy with history of infertility, first trimester |
| O09.02 | Supervision of pregnancy with history of infertility, second trimester |
| O09.03 | Supervision of pregnancy with history of infertility, third trimester |
| O09.1 | Supervision of pregnancy with history of ectopic or molar pregnancy |
| O09.10 | Supervision of pregnancy with history of ectopic or molar pregnancy, unspecified trimester |
| O09.11 | Supervision of pregnancy with history of ectopic or molar pregnancy, first trimester |
| O09.12 | Supervision of pregnancy with history of ectopic or molar pregnancy, second trimester |
| O09.13 | Supervision of pregnancy with history of ectopic or molar pregnancy, third trimester |
| O09.2 | Supervision of pregnancy with other poor reproductive or obstetric history |
| O09.21 | Supervision of pregnancy with history of pre-term labor |
| O09.211 | Supervision of pregnancy with history of pre-term labor, first trimester |
| O09.212 | Supervision of pregnancy with history of pre-term labor, second trimester |
| O09.213 | Supervision of pregnancy with history of pre-term labor, third trimester |
| O09.219 | Supervision of pregnancy with history of pre-term labor, unspecified trimester |
| O09.29 | Supervision of pregnancy with other poor reproductive or obstetric history |
| O09.291 | Supervision of pregnancy with other poor reproductive or obstetric history, first trimester |
| O09.292 | Supervision of pregnancy with other poor reproductive or obstetric history, second trimester |
| O09.293 | Supervision of pregnancy with other poor reproductive or obstetric history, third trimester |
| O09.299 | Supervision of pregnancy with other poor reproductive or obstetric history, unspecified trimester |
| O09.3 | Supervision of pregnancy with insufficient antenatal care |
| O09.30 | Supervision of pregnancy with insufficient antenatal care, unspecified trimester |
| O09.31 | Supervision of pregnancy with insufficient antenatal care, first trimester |
| O09.32 | Supervision of pregnancy with insufficient antenatal care, second trimester |
| O09.33 | Supervision of pregnancy with insufficient antenatal care, third trimester |
| O09.4 | Supervision of pregnancy with grand multiparity |
| O09.40 | Supervision of pregnancy with grand multiparity, unspecified trimester |
| O09.41 | Supervision of pregnancy with grand multiparity, first trimester |
| O09.42 | Supervision of pregnancy with grand multiparity, second trimester |
| O09.43 | Supervision of pregnancy with grand multiparity, third trimester |
| O09.5 | Supervision of elderly primigravida and multigravida |
| O09.51 | Supervision of elderly primigravida |
| O09.511 | Supervision of elderly primigravida, first trimester |
| O09.512 | Supervision of elderly primigravida, second trimester |
| O09.513 | Supervision of elderly primigravida, third trimester |
| O09.519 | Supervision of elderly primigravida, unspecified trimester |
| O09.52 | Supervision of elderly multigravida |
| O09.521 | Supervision of elderly multigravida, first trimester |
| O09.522 | Supervision of elderly multigravida, second trimester |
| O09.523 | Supervision of elderly multigravida, third trimester |
| O09.529 | Supervision of elderly multigravida, unspecified trimester |
| O09.6 | Supervision of young primigravida and multigravida |
| O09.61 | Supervision of young primigravida |
| O09.611 | Supervision of young primigravida, first trimester |
| O09.612 | Supervision of young primigravida, second trimester |
| O09.613 | Supervision of young primigravida, third trimester |
| O09.619 | Supervision of young primigravida, unspecified trimester |
| O09.62 | Supervision of young multigravida |
| O09.621 | Supervision of young multigravida, first trimester |
| O09.622 | Supervision of young multigravida, second trimester |
| O09.623 | Supervision of young multigravida, third trimester |
| O09.629 | Supervision of young multigravida, unspecified trimester |
| O09.7 | Supervision of high risk pregnancy due to social problems |
| O09.70 | Supervision of high risk pregnancy due to social problems, unspecified trimester |
| O09.71 | Supervision of high risk pregnancy due to social problems, first trimester |
| O09.72 | Supervision of high risk pregnancy due to social problems, second trimester |
| O09.73 | Supervision of high risk pregnancy due to social problems, third trimester |
| O09.8 | Supervision of other high risk pregnancies |
| O09.81 | Supervision of pregnancy resulting from assisted reproductive technology |
| O09.811 | Supervision of pregnancy resulting from assisted reproductive technology, first trimester |
| O09.812 | Supervision of pregnancy resulting from assisted reproductive technology, second trimester |
| O09.813 | Supervision of pregnancy resulting from assisted reproductive technology, third trimester |
| O09.819 | Supervision of pregnancy resulting from assisted reproductive technology, unspecified trimester |
| O09.82 | Supervision of pregnancy with history of in utero procedure during previous pregnancy |
| O09.821 | Supervision of pregnancy with history of in utero procedure during previous pregnancy, first trimester |
| O09.822 | Supervision of pregnancy with history of in utero procedure during previous pregnancy, second trimester |
| O09.823 | Supervision of pregnancy with history of in utero procedure during previous pregnancy, third trimester |
| O09.829 | Supervision of pregnancy with history of in utero procedure during previous pregnancy, unspecified trimester |
| O09.89 | Supervision of other high risk pregnancies |
| O09.891 | Supervision of other high risk pregnancies, first trimester |
| O09.892 | Supervision of other high risk pregnancies, second trimester |
| O09.893 | Supervision of other high risk pregnancies, third trimester |
| O09.899 | Supervision of other high risk pregnancies, unspecified trimester |
| O09.9 | Supervision of high risk pregnancy, unspecified |
| O09.90 | Supervision of high risk pregnancy, unspecified, unspecified trimester |
| O09.91 | Supervision of high risk pregnancy, unspecified, first trimester |
| O09.92 | Supervision of high risk pregnancy, unspecified, second trimester |
| O09.93 | Supervision of high risk pregnancy, unspecified, third trimester |
| O10 | Pre-existing hypertension complicating pregnancy, childbirth and the puerperium |
| O10.0 | Pre-existing essential hypertension complicating pregnancy, childbirth and the puerperium |
| O10.01 | Pre-existing essential hypertension complicating pregnancy, |
| O10.011 | Pre-existing essential hypertension complicating pregnancy, first trimester |
| O10.012 | Pre-existing essential hypertension complicating pregnancy, second trimester |
| O10.013 | Pre-existing essential hypertension complicating pregnancy, third trimester |
| O10.019 | Pre-existing essential hypertension complicating pregnancy, unspecified trimester |
| O10.02 | Pre-existing essential hypertension complicating childbirth |
| O10.03 | Pre-existing essential hypertension complicating the puerperium |
| O10.1 | Pre-existing hypertensive heart disease complicating pregnancy, childbirth and the puerperium |
| O10.11 | Pre-existing hypertensive heart disease complicating pregnancy |
| O10.111 | Pre-existing hypertensive heart disease complicating pregnancy, first trimester |
| O10.112 | Pre-existing hypertensive heart disease complicating pregnancy, second trimester |
| O10.113 | Pre-existing hypertensive heart disease complicating pregnancy, third trimester |
| O10.119 | Pre-existing hypertensive heart disease complicating pregnancy, unspecified trimester |
| O10.12 | Pre-existing hypertensive heart disease complicating childbirth |
| O10.13 | Pre-existing hypertensive heart disease complicating the puerperium |
| O10.2 | Pre-existing hypertensive chronic kidney disease complicating pregnancy, childbirth and the puerperium |
| O10.21 | Pre-existing hypertensive chronic kidney disease complicating pregnancy |
| O10.211 | Pre-existing hypertensive chronic kidney disease complicating pregnancy, first trimester |
| O10.212 | Pre-existing hypertensive chronic kidney disease complicating pregnancy, second trimester |
| O10.213 | Pre-existing hypertensive chronic kidney disease complicating pregnancy, third trimester |
| O10.219 | Pre-existing hypertensive chronic kidney disease complicating pregnancy, unspecified trimester |
| O10.22 | Pre-existing hypertensive chronic kidney disease complicating childbirth |
| O10.23 | Pre-existing hypertensive chronic kidney disease complicating the puerperium |
| O10.3 | Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, childbirth and the puerperium |
| O10.31 | Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy |
| O10.311 | Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, first trimester |
| O10.312 | Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, second trimester |
| O10.313 | Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, third trimester |
| O10.319 | Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, unspecified trimester |
| O10.32 | Pre-existing hypertensive heart and chronic kidney disease complicating childbirth |
| O10.33 | Pre-existing hypertensive heart and chronic kidney disease complicating the puerperium |
| O10.4 | Pre-existing secondary hypertension complicating pregnancy, childbirth and the puerperium |
| O10.41 | Pre-existing secondary hypertension complicating pregnancy |
| O10.411 | Pre-existing secondary hypertension complicating pregnancy, first trimester |
| O10.412 | Pre-existing secondary hypertension complicating pregnancy, second trimester |
| O10.413 | Pre-existing secondary hypertension complicating pregnancy, third trimester |
| O10.419 | Pre-existing secondary hypertension complicating pregnancy, unspecified trimester |
| O10.42 | Pre-existing secondary hypertension complicating childbirth |
| O10.43 | Pre-existing secondary hypertension complicating the puerperium |
| O10.9 | Unspecified pre-existing hypertension complicating pregnancy, childbirth and the puerperium |
| O10.91 | Unspecified pre-existing hypertension complicating pregnancy |
| O10.911 | Unspecified pre-existing hypertension complicating pregnancy, first trimester |
| O10.912 | Unspecified pre-existing hypertension complicating pregnancy, second trimester |
| O10.913 | Unspecified pre-existing hypertension complicating pregnancy, third trimester |
| O10.919 | Unspecified pre-existing hypertension complicating pregnancy, unspecified trimester |
| O10.92 | Unspecified pre-existing hypertension complicating childbirth |
| O10.93 | Unspecified pre-existing hypertension complicating the puerperium |
| O11 | Pre-existing hypertension with pre-eclampsia |
| O11.1 | Pre-existing hypertension with pre-eclampsia, first trimester |
| O11.2 | Pre-existing hypertension with pre-eclampsia, second trimester |
| O11.3 | Pre-existing hypertension with pre-eclampsia, third trimester |
| O11.9 | Pre-existing hypertension with pre-eclampsia, unspecified trimester |
| O12 | Gestational [pregnancy-induced] edema and proteinuria without hypertension |
| O12.0 | Gestational edema |
| O12.00 | Gestational edema, unspecified trimester |
| O12.01 | Gestational edema, first trimester |
| O12.02 | Gestational edema, second trimester |
| O12.03 | Gestational edema, third trimester |
| O12.1 | Gestational proteinuria |
| O12.10 | Gestational proteinuria, unspecified trimester |
| O12.11 | Gestational proteinuria, first trimester |
| O12.12 | Gestational proteinuria, second trimester |
| O12.13 | Gestational proteinuria, third trimester |
| O12.2 | Gestational edema with proteinuria |
| O12.20 | Gestational edema with proteinuria, unspecified trimester |
| O12.21 | Gestational edema with proteinuria, first trimester |
| O12.22 | Gestational edema with proteinuria, second trimester |
| O12.23 | Gestational edema with proteinuria, third trimester |
| O13 | Gestational [pregnancy-induced] hypertension without significant proteinuria |
| O13.1 | Gestational [pregnancy-induced] hypertension without significant proteinuria, first trimester |
| O13.2 | Gestational [pregnancy-induced] hypertension without significant proteinuria, second trimester |
| O13.3 | Gestational [pregnancy-induced] hypertension without significant proteinuria, third trimester |
| O13.9 | Gestational [pregnancy-induced] hypertension without significant proteinuria, unspecified trimester |
| O14 | Pre-eclampsia |
| O14.0 | Mild to moderate pre-eclampsia |
| O14.00 | Mild to moderate pre-eclampsia, unspecified trimester |
| O14.02 | Mild to moderate pre-eclampsia, second trimester |
| O14.03 | Mild to moderate pre-eclampsia, third trimester |
| O14.1 | Severe pre-eclampsia |
| O14.10 | Severe pre-eclampsia, unspecified trimester |
| O14.12 | Severe pre-eclampsia, second trimester |
| O14.13 | Severe pre-eclampsia, third trimester |
| O14.2 | HELLP syndrome |
| O14.20 | HELLP syndrome (HELLP), unspecified trimester |
| O14.22 | HELLP syndrome (HELLP), second trimester |
| O14.23 | HELLP syndrome (HELLP), third trimester |
| O14.9 | Unspecified pre-eclampsia |
| O14.90 | Unspecified pre-eclampsia, unspecified trimester |
| O14.92 | Unspecified pre-eclampsia, second trimester |
| O14.93 | Unspecified pre-eclampsia, third trimester |
| O15 | Eclampsia |
| O15.0 | Eclampsia in pregnancy |
| O15.00 | Eclampsia in pregnancy, unspecified trimester |
| O15.02 | Eclampsia in pregnancy, second trimester |
| O15.03 | Eclampsia in pregnancy, third trimester |
| O15.1 | Eclampsia in labor |
| O15.2 | Eclampsia in the puerperium |
| O15.9 | Eclampsia, unspecified as to time period |
| O16 | Unspecified maternal hypertension |
| O16.1 | Unspecified maternal hypertension, first trimester |
| O16.2 | Unspecified maternal hypertension, second trimester |
| O16.3 | Unspecified maternal hypertension, third trimester |
| O16.9 | Unspecified maternal hypertension, unspecified trimester |
| O20 | Hemorrhage in early pregnancy |
| O20.0 | Threatened abortion |
| O20.8 | Other hemorrhage in early pregnancy |
| O20.9 | Hemorrhage in early pregnancy, unspecified |
| O21 | Excessive vomiting in pregnancy |
| O21.0 | Mild hyperemesis gravidarum |
| O21.1 | Hyperemesis gravidarum with metabolic disturbance |
| O21.2 | Late vomiting of pregnancy |
| O21.8 | Other vomiting complicating pregnancy |
| O21.9 | Vomiting of pregnancy, unspecified |
| O22 | Venous complications and hemorrhoids in pregnancy |
| O22.0 | Varicose veins of lower extremity in pregnancy |
| O22.00 | Varicose veins of lower extremity in pregnancy, unspecified trimester |
| O22.01 | Varicose veins of lower extremity in pregnancy, first trimester |
| O22.02 | Varicose veins of lower extremity in pregnancy, second trimester |
| O22.03 | Varicose veins of lower extremity in pregnancy, third trimester |
| O22.1 | Genital varices in pregnancy |
| O22.10 | Genital varices in pregnancy, unspecified trimester |
| O22.11 | Genital varices in pregnancy, first trimester |
| O22.12 | Genital varices in pregnancy, second trimester |
| O22.13 | Genital varices in pregnancy, third trimester |
| O22.2 | Superficial thrombophlebitis in pregnancy |
| O22.20 | Superficial thrombophlebitis in pregnancy, unspecified trimester |
| O22.21 | Superficial thrombophlebitis in pregnancy, first trimester |
| O22.22 | Superficial thrombophlebitis in pregnancy, second trimester |
| O22.23 | Superficial thrombophlebitis in pregnancy, third trimester |
| O22.3 | Deep phlebothrombosis in pregnancy |
| O22.30 | Deep phlebothrombosis in pregnancy, unspecified trimester |
| O22.31 | Deep phlebothrombosis in pregnancy, first trimester |
| O22.32 | Deep phlebothrombosis in pregnancy, second trimester |
| O22.33 | Deep phlebothrombosis in pregnancy, third trimester |
| O22.4 | Hemorrhoids in pregnancy |
| O22.40 | Hemorrhoids in pregnancy, unspecified trimester |
| O22.41 | Hemorrhoids in pregnancy, first trimester |
| O22.42 | Hemorrhoids in pregnancy, second trimester |
| O22.43 | Hemorrhoids in pregnancy, third trimester |
| O22.5 | Cerebral venous thrombosis in pregnancy |
| O22.50 | Cerebral venous thrombosis in pregnancy, unspecified trimester |
| O22.51 | Cerebral venous thrombosis in pregnancy, first trimester |
| O22.52 | Cerebral venous thrombosis in pregnancy, second trimester |
| O22.53 | Cerebral venous thrombosis in pregnancy, third trimester |
| O22.8 | Other venous complications in pregnancy |
| O22.8X | Other venous complications in pregnancy |
| O22.8X1 | Other venous complications in pregnancy, first trimester |
| O22.8X2 | Other venous complications in pregnancy, second trimester |
| O22.8X3 | Other venous complications in pregnancy, third trimester |
| O22.8X9 | Other venous complications in pregnancy, unspecified trimester |
| O22.9 | Venous complication in pregnancy, unspecified |
| O22.90 | Venous complication in pregnancy, unspecified, unspecified trimester |
| O22.91 | Venous complication in pregnancy, unspecified, first trimester |
| O22.92 | Venous complication in pregnancy, unspecified, second trimester |
| O22.93 | Venous complication in pregnancy, unspecified, third trimester |
| O23 | Infections of genitourinary tract in pregnancy |
| O23.0 | Infections of kidney in pregnancy |
| O23.00 | Infections of kidney in pregnancy, unspecified trimester |
| O23.01 | Infections of kidney in pregnancy, first trimester |
| O23.02 | Infections of kidney in pregnancy, second trimester |
| O23.03 | Infections of kidney in pregnancy, third trimester |
| O23.1 | Infections of bladder in pregnancy |
| O23.10 | Infections of bladder in pregnancy, unspecified trimester |
| O23.11 | Infections of bladder in pregnancy, first trimester |
| O23.12 | Infections of bladder in pregnancy, second trimester |
| O23.13 | Infections of bladder in pregnancy, third trimester |
| O23.2 | Infections of urethra in pregnancy |
| O23.20 | Infections of urethra in pregnancy, unspecified trimester |
| O23.21 | Infections of urethra in pregnancy, first trimester |
| O23.22 | Infections of urethra in pregnancy, second trimester |
| O23.23 | Infections of urethra in pregnancy, third trimester |
| O23.3 | Infections of other parts of urinary tract in pregnancy |
| O23.30 | Infections of other parts of urinary tract in pregnancy, unspecified trimester |
| O23.31 | Infections of other parts of urinary tract in pregnancy, first trimester |
| O23.32 | Infections of other parts of urinary tract in pregnancy, second trimester |
| O23.33 | Infections of other parts of urinary tract in pregnancy, third trimester |
| O23.4 | Unspecified infection of urinary tract in pregnancy |
| O23.40 | Unspecified infection of urinary tract in pregnancy, unspecified trimester |
| O23.41 | Unspecified infection of urinary tract in pregnancy, first trimester |
| O23.42 | Unspecified infection of urinary tract in pregnancy, second trimester |
| O23.43 | Unspecified infection of urinary tract in pregnancy, third trimester |
| O23.5 | Infections of the genital tract in pregnancy |
| O23.51 | Infection of cervix in pregnancy |
| O23.511 | Infections of cervix in pregnancy, first trimester |
| O23.512 | Infections of cervix in pregnancy, second trimester |
| O23.513 | Infections of cervix in pregnancy, third trimester |
| O23.519 | Infections of cervix in pregnancy, unspecified trimester |
| O23.52 | Salpingo-oophoritis in pregnancy |
| O23.521 | Salpingo-oophoritis in pregnancy, first trimester |
| O23.522 | Salpingo-oophoritis in pregnancy, second trimester |
| O23.523 | Salpingo-oophoritis in pregnancy, third trimester |
| O23.529 | Salpingo-oophoritis in pregnancy, unspecified trimester |
| O23.59 | Infection of other part of genital tract in pregnancy |
| O23.591 | Infection of other part of genital tract in pregnancy, first trimester |
| O23.592 | Infection of other part of genital tract in pregnancy, second trimester |
| O23.593 | Infection of other part of genital tract in pregnancy, third trimester |
| O23.599 | Infection of other part of genital tract in pregnancy, unspecified trimester |
| O23.9 | Unspecified genitourinary tract infection in pregnancy |
| O23.90 | Unspecified genitourinary tract infection in pregnancy, unspecified trimester |
| O23.91 | Unspecified genitourinary tract infection in pregnancy, first trimester |
| O23.92 | Unspecified genitourinary tract infection in pregnancy, second trimester |
| O23.93 | Unspecified genitourinary tract infection in pregnancy, third trimester |
| O24 | Diabetes mellitus in pregnancy, childbirth, and the puerperium |
| O24.0 | Pre-existing diabetes mellitus, type 1, in pregnancy, childbirth and the puerperium |
| O24.01 | Pre-existing diabetes mellitus, type 1, in pregnancy |
| O24.011 | Pre-existing diabetes mellitus, type 1, in pregnancy, first trimester |
| O24.012 | Pre-existing diabetes mellitus, type 1, in pregnancy, second trimester |
| O24.013 | Pre-existing diabetes mellitus, type 1, in pregnancy, third trimester |
| O24.019 | Pre-existing diabetes mellitus, type 1, in pregnancy, unspecified trimester |
| O24.02 | Pre-existing diabetes mellitus, type 1, in childbirth |
| O24.03 | Pre-existing diabetes mellitus, type 1, in the puerperium |
| O24.1 | Pre-existing diabetes mellitus, type 2, in pregnancy, childbirth and the puerperium |
| O24.11 | Pre-existing diabetes mellitus, type 2, in pregnancy |
| O24.111 | Pre-existing diabetes mellitus, type 2, in pregnancy, first trimester |
| O24.112 | Pre-existing diabetes mellitus, type 2, in pregnancy, second trimester |
| O24.113 | Pre-existing diabetes mellitus, type 2, in pregnancy, third trimester |
| O24.119 | Pre-existing diabetes mellitus, type 2, in pregnancy, unspecified trimester |
| O24.12 | Pre-existing diabetes mellitus, type 2, in childbirth |
| O24.13 | Pre-existing diabetes mellitus, type 2, in the puerperium |
| O24.3 | Unspecified pre-existing diabetes mellitus in pregnancy, childbirth and the puerperium |
| O24.31 | Unspecified pre-existing diabetes mellitus in pregnancy |
| O24.311 | Unspecified pre-existing diabetes mellitus in pregnancy, first trimester |
| O24.312 | Unspecified pre-existing diabetes mellitus in pregnancy, second trimester |
| O24.313 | Unspecified pre-existing diabetes mellitus in pregnancy, third trimester |
| O24.319 | Unspecified pre-existing diabetes mellitus in pregnancy, unspecified trimester |
| O24.32 | Unspecified pre-existing diabetes mellitus in childbirth |
| O24.33 | Unspecified pre-existing diabetes mellitus in the puerperium |
| O24.4 | Gestational diabetes mellitus |
| O24.41 | Gestational diabetes mellitus in pregnancy |
| O24.410 | Gestational diabetes mellitus in pregnancy, diet controlled |
| O24.414 | Gestational diabetes mellitus in pregnancy, insulin controlled |
| O24.419 | Gestational diabetes mellitus in pregnancy, unspecified control |
| O24.42 | Gestational diabetes mellitus in childbirth |
| O24.420 | Gestational diabetes mellitus in childbirth, diet controlled |
| O24.424 | Gestational diabetes mellitus in childbirth, insulin controlled |
| O24.429 | Gestational diabetes mellitus in childbirth, unspecified control |
| O24.43 | Gestational diabetes mellitus in the puerperium |
| O24.430 | Gestational diabetes mellitus in the puerperium, diet controlled |
| O24.434 | Gestational diabetes mellitus in the puerperium, insulin controlled |
| O24.439 | Gestational diabetes mellitus in the puerperium, unspecified control |
| O24.8 | Other pre-existing diabetes mellitus in pregnancy, childbirth, and the puerperium |
| O24.81 | Other pre-existing diabetes mellitus in pregnancy |
| O24.811 | Other pre-existing diabetes mellitus in pregnancy, first trimester |
| O24.812 | Other pre-existing diabetes mellitus in pregnancy, second trimester |
| O24.813 | Other pre-existing diabetes mellitus in pregnancy, third trimester |
| O24.819 | Other pre-existing diabetes mellitus in pregnancy, unspecified trimester |
| O24.82 | Other pre-existing diabetes mellitus in childbirth |
| O24.83 | Other pre-existing diabetes mellitus in the puerperium |
| O24.9 | Unspecified diabetes mellitus in pregnancy, childbirth and the puerperium |
| O24.91 | Unspecified diabetes mellitus in pregnancy |
| O24.911 | Unspecified diabetes mellitus in pregnancy, first trimester |
| O24.912 | Unspecified diabetes mellitus in pregnancy, second trimester |
| O24.913 | Unspecified diabetes mellitus in pregnancy, third trimester |
| O24.919 | Unspecified diabetes mellitus in pregnancy, unspecified trimester |
| O24.92 | Unspecified diabetes mellitus in childbirth |
| O24.93 | Unspecified diabetes mellitus in the puerperium |
| O25 | Malnutrition in pregnancy, childbirth and the puerperium |
| O25.1 | Malnutrition in pregnancy |
| O25.10 | Malnutrition in pregnancy, unspecified trimester |
| O25.11 | Malnutrition in pregnancy, first trimester |
| O25.12 | Malnutrition in pregnancy, second trimester |
| O25.13 | Malnutrition in pregnancy, third trimester |
| O25.2 | Malnutrition in childbirth |
| O25.3 | Malnutrition in the puerperium |
| O26 | Maternal care for other conditions predominantly related to pregnancy |
| O26.0 | Excessive weight gain in pregnancy |
| O26.00 | Excessive weight gain in pregnancy, unspecified trimester |
| O26.01 | Excessive weight gain in pregnancy, first trimester |
| O26.02 | Excessive weight gain in pregnancy, second trimester |
| O26.03 | Excessive weight gain in pregnancy, third trimester |
| O26.1 | Low weight gain in pregnancy |
| O26.10 | Low weight gain in pregnancy, unspecified trimester |
| O26.11 | Low weight gain in pregnancy, first trimester |
| O26.12 | Low weight gain in pregnancy, second trimester |
| O26.13 | Low weight gain in pregnancy, third trimester |
| O26.2 | Pregnancy care for patient with recurrent pregnancy loss |
| O26.20 | Pregnancy care for patient with recurrent pregnancy loss, unspecified trimester |
| O26.21 | Pregnancy care for patient with recurrent pregnancy loss, first trimester |
| O26.22 | Pregnancy care for patient with recurrent pregnancy loss, second trimester |
| O26.23 | Pregnancy care for patient with recurrent pregnancy loss, third trimester |
| O26.3 | Retained intrauterine contraceptive device in pregnancy |
| O26.30 | Retained intrauterine contraceptive device in pregnancy, unspecified trimester |
| O26.31 | Retained intrauterine contraceptive device in pregnancy, first trimester |
| O26.32 | Retained intrauterine contraceptive device in pregnancy, second trimester |
| O26.33 | Retained intrauterine contraceptive device in pregnancy, third trimester |
| O26.4 | Herpes gestationis |
| O26.40 | Herpes gestationis, unspecified trimester |
| O26.41 | Herpes gestationis, first trimester |
| O26.42 | Herpes gestationis, second trimester |
| O26.43 | Herpes gestationis, third trimester |
| O26.5 | Maternal hypotension syndrome |
| O26.50 | Maternal hypotension syndrome, unspecified trimester |
| O26.51 | Maternal hypotension syndrome, first trimester |
| O26.52 | Maternal hypotension syndrome, second trimester |
| O26.53 | Maternal hypotension syndrome, third trimester |
| O26.6 | Liver and biliary tract disorders in pregnancy, childbirth and the puerperium |
| O26.61 | Liver and biliary tract disorders in pregnancy |
| O26.611 | Liver and biliary tract disorders in pregnancy, first trimester |
| O26.612 | Liver and biliary tract disorders in pregnancy, second trimester |
| O26.613 | Liver and biliary tract disorders in pregnancy, third trimester |
| O26.619 | Liver and biliary tract disorders in pregnancy, unspecified trimester |
| O26.62 | Liver and biliary tract disorders in childbirth |
| O26.63 | Liver and biliary tract disorders in the puerperium |
| O26.7 | Subluxation of symphysis (pubis) in pregnancy, childbirth and the puerperium |
| O26.71 | Subluxation of symphysis (pubis) in pregnancy |
| O26.711 | Subluxation of symphysis (pubis) in pregnancy, first trimester |
| O26.712 | Subluxation of symphysis (pubis) in pregnancy, second trimester |
| O26.713 | Subluxation of symphysis (pubis) in pregnancy, third trimester |
| O26.719 | Subluxation of symphysis (pubis) in pregnancy, unspecified trimester |
| O26.72 | Subluxation of symphysis (pubis) in childbirth |
| O26.73 | Subluxation of symphysis (pubis) in the puerperium |
| O26.8 | Other specified pregnancy related conditions |
| O26.81 | Pregnancy related exhaustion and fatigue |
| O26.811 | Pregnancy related exhaustion and fatigue, first trimester |
| O26.812 | Pregnancy related exhaustion and fatigue, second trimester |
| O26.813 | Pregnancy related exhaustion and fatigue, third trimester |
| O26.819 | Pregnancy related exhaustion and fatigue, unspecified trimester |
| O26.82 | Pregnancy related peripheral neuritis |
| O26.821 | Pregnancy related peripheral neuritis, first trimester |
| O26.822 | Pregnancy related peripheral neuritis, second trimester |
| O26.823 | Pregnancy related peripheral neuritis, third trimester |
| O26.829 | Pregnancy related peripheral neuritis, unspecified trimester |
| O26.83 | Pregnancy related renal disease |
| O26.831 | Pregnancy related renal disease, first trimester |
| O26.832 | Pregnancy related renal disease, second trimester |
| O26.833 | Pregnancy related renal disease, third trimester |
| O26.839 | Pregnancy related renal disease, unspecified trimester |
| O26.84 | Uterine size-date discrepancy complicating pregnancy |
| O26.841 | Uterine size-date discrepancy, first trimester |
| O26.842 | Uterine size-date discrepancy, second trimester |
| O26.843 | Uterine size-date discrepancy, third trimester |
| O26.849 | Uterine size-date discrepancy, unspecified trimester |
| O26.85 | Spotting complicating pregnancy |
| O26.851 | Spotting complicating pregnancy, first trimester |
| O26.852 | Spotting complicating pregnancy, second trimester |
| O26.853 | Spotting complicating pregnancy, third trimester |
| O26.859 | Spotting complicating pregnancy, unspecified trimester |
| O26.86 | Pruritic urticarial papules and plaques of pregnancy (PUPPP) |
| O26.87 | Cervical shortening |
| O26.872 | Cervical shortening, second trimester |
| O26.873 | Cervical shortening, third trimester |
| O26.879 | Cervical shortening, unspecified trimester |
| O26.89 | Other specified pregnancy related conditions |
| O26.891 | Other specified pregnancy related conditions, first trimester |
| O26.892 | Other specified pregnancy related conditions, second trimester |
| O26.893 | Other specified pregnancy related conditions, third trimester |
| O26.899 | Other specified pregnancy related conditions, unspecified trimester |
| O26.9 | Pregnancy related conditions, unspecified |
| O26.90 | Pregnancy related conditions, unspecified, unspecified trimester |
| O26.91 | Pregnancy related conditions, unspecified, first trimester |
| O26.92 | Pregnancy related conditions, unspecified, second trimester |
| O26.93 | Pregnancy related conditions, unspecified, third trimester |
| O28 | Abnormal findings on antenatal screening of mother |
| O28.0 | Abnormal hematological finding on antenatal screening of mother |
| O28.1 | Abnormal biochemical finding on antenatal screening of mother |
| O28.2 | Abnormal cytological finding on antenatal screening of mother |
| O28.3 | Abnormal ultrasonic finding on antenatal screening of mother |
| O28.4 | Abnormal radiological finding on antenatal screening of mother |
| O28.5 | Abnormal chromosomal and genetic finding on antenatal screening of mother |
| O28.8 | Other abnormal findings on antenatal screening of mother |
| O28.9 | Unspecified abnormal findings on antenatal screening of mother |
| O29 | Complications of anesthesia during pregnancy |
| O29.0 | Pulmonary complications of anesthesia during pregnancy |
| O29.01 | Aspiration pneumonitis due to anesthesia during pregnancy |
| O29.011 | Aspiration pneumonitis due to anesthesia during pregnancy, first trimester |
| O29.012 | Aspiration pneumonitis due to anesthesia during pregnancy, second trimester |
| O29.013 | Aspiration pneumonitis due to anesthesia during pregnancy, third trimester |
| O29.019 | Aspiration pneumonitis due to anesthesia during pregnancy, unspecified trimester |
| O29.02 | Pressure collapse of lung due to anesthesia during pregnancy |
| O29.021 | Pressure collapse of lung due to anesthesia during pregnancy, first trimester |
| O29.022 | Pressure collapse of lung due to anesthesia during pregnancy, second trimester |
| O29.023 | Pressure collapse of lung due to anesthesia during pregnancy, third trimester |
| O29.029 | Pressure collapse of lung due to anesthesia during pregnancy, unspecified trimester |
| O29.09 | Other pulmonary complications of anesthesia during pregnancy |
| O29.091 | Other pulmonary complications of anesthesia during pregnancy, first trimester |
| O29.092 | Other pulmonary complications of anesthesia during pregnancy, second trimester |
| O29.093 | Other pulmonary complications of anesthesia during pregnancy, third trimester |
| O29.099 | Other pulmonary complications of anesthesia during pregnancy, unspecified trimester |
| O29.1 | Cardiac complications of anesthesia during pregnancy |
| O29.11 | Cardiac arrest due to anesthesia during pregnancy |
| O29.111 | Cardiac arrest due to anesthesia during pregnancy, first trimester |
| O29.112 | Cardiac arrest due to anesthesia during pregnancy, second trimester |
| O29.113 | Cardiac arrest due to anesthesia during pregnancy, third trimester |
| O29.119 | Cardiac arrest due to anesthesia during pregnancy, unspecified trimester |
| O29.12 | Cardiac failure due to anesthesia during pregnancy |
| O29.121 | Cardiac failure due to anesthesia during pregnancy, first trimester |
| O29.122 | Cardiac failure due to anesthesia during pregnancy, second trimester |
| O29.123 | Cardiac failure due to anesthesia during pregnancy, third trimester |
| O29.129 | Cardiac failure due to anesthesia during pregnancy, unspecified trimester |
| O29.19 | Other cardiac complications of anesthesia during pregnancy |
| O29.191 | Other cardiac complications of anesthesia during pregnancy, first trimester |
| O29.192 | Other cardiac complications of anesthesia during pregnancy, second trimester |
| O29.193 | Other cardiac complications of anesthesia during pregnancy, third trimester |
| O29.199 | Other cardiac complications of anesthesia during pregnancy, unspecified trimester |
| O29.2 | Central nervous system complications of anesthesia during pregnancy |
| O29.21 | Cerebral anoxia due to anesthesia during pregnancy |
| O29.211 | Cerebral anoxia due to anesthesia during pregnancy, first trimester |
| O29.212 | Cerebral anoxia due to anesthesia during pregnancy, second trimester |
| O29.213 | Cerebral anoxia due to anesthesia during pregnancy, third trimester |
| O29.219 | Cerebral anoxia due to anesthesia during pregnancy, unspecified trimester |
| O29.29 | Other central nervous system complications of anesthesia during pregnancy |
| O29.291 | Other central nervous system complications of anesthesia during pregnancy, first trimester |
| O29.292 | Other central nervous system complications of anesthesia during pregnancy, second trimester |
| O29.293 | Other central nervous system complications of anesthesia during pregnancy, third trimester |
| O29.299 | Other central nervous system complications of anesthesia during pregnancy, unspecified trimester |
| O29.3 | Toxic reaction to local anesthesia during pregnancy |
| O29.3X | Toxic reaction to local anesthesia during pregnancy |
| O29.3X1 | Toxic reaction to local anesthesia during pregnancy, first trimester |
| O29.3X2 | Toxic reaction to local anesthesia during pregnancy, second trimester |
| O29.3X3 | Toxic reaction to local anesthesia during pregnancy, third trimester |
| O29.3X9 | Toxic reaction to local anesthesia during pregnancy, unspecified trimester |
| O29.4 | Spinal and epidural anesthesia induced headache during pregnancy |
| O29.40 | Spinal and epidural anesthesia induced headache during pregnancy, unspecified trimester |
| O29.41 | Spinal and epidural anesthesia induced headache during pregnancy, first trimester |
| O29.42 | Spinal and epidural anesthesia induced headache during pregnancy, second trimester |
| O29.43 | Spinal and epidural anesthesia induced headache during pregnancy, third trimester |
| O29.5 | Other complications of spinal and epidural anesthesia during pregnancy |
| O29.5X | Other complications of spinal and epidural anesthesia during pregnancy |
| O29.5X1 | Other complications of spinal and epidural anesthesia during pregnancy, first trimester |
| O29.5X2 | Other complications of spinal and epidural anesthesia during pregnancy, second trimester |
| O29.5X3 | Other complications of spinal and epidural anesthesia during pregnancy, third trimester |
| O29.5X9 | Other complications of spinal and epidural anesthesia during pregnancy, unspecified trimester |
| O29.6 | Failed or difficult intubation for anesthesia during pregnancy |
| O29.60 | Failed or difficult intubation for anesthesia during pregnancy, unspecified trimester |
| O29.61 | Failed or difficult intubation for anesthesia during pregnancy, first trimester |
| O29.62 | Failed or difficult intubation for anesthesia during pregnancy, second trimester |
| O29.63 | Failed or difficult intubation for anesthesia during pregnancy, third trimester |
| O29.8 | Other complications of anesthesia during pregnancy |
| O29.8X | Other complications of anesthesia during pregnancy |
| O29.8X1 | Other complications of anesthesia during pregnancy, first trimester |
| O29.8X2 | Other complications of anesthesia during pregnancy, second trimester |
| O29.8X3 | Other complications of anesthesia during pregnancy, third trimester |
| O29.8X9 | Other complications of anesthesia during pregnancy, unspecified trimester |
| O29.9 | Unspecified complication of anesthesia during pregnancy |
| O29.90 | Unspecified complication of anesthesia during pregnancy, unspecified trimester |
| O29.91 | Unspecified complication of anesthesia during pregnancy, first trimester |
| O29.92 | Unspecified complication of anesthesia during pregnancy, second trimester |
| O29.93 | Unspecified complication of anesthesia during pregnancy, third trimester |
| O30 | Multiple gestation |
| O30.0 | Twin pregnancy |
| O30.00 | Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs |
| O30.001 | Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, first trimester |
| O30.002 | Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, second trimester |
| O30.003 | Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, third trimester |
| O30.009 | Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, unspecified trimester |
| O30.01 | Twin pregnancy, monochorionic/monoamniotic |
| O30.011 | Twin pregnancy, monochorionic/monoamniotic, first trimester |
| O30.012 | Twin pregnancy, monochorionic/monoamniotic, second trimester |
| O30.013 | Twin pregnancy, monochorionic/monoamniotic, third trimester |
| O30.019 | Twin pregnancy, monochorionic/monoamniotic, unspecified trimester |
| O30.02 | Conjoined twin pregnancy |
| O30.021 | Conjoined twin pregnancy, first trimester |
| O30.022 | Conjoined twin pregnancy, second trimester |
| O30.023 | Conjoined twin pregnancy, third trimester |
| O30.029 | Conjoined twin pregnancy, unspecified trimester |
| O30.03 | Twin pregnancy, monochorionic/diamniotic |
| O30.031 | Twin pregnancy, monochorionic/diamniotic, first trimester |
| O30.032 | Twin pregnancy, monochorionic/diamniotic, second trimester |
| O30.033 | Twin pregnancy, monochorionic/diamniotic, third trimester |
| O30.039 | Twin pregnancy, monochorionic/diamniotic, unspecified trimester |
| O30.04 | Twin pregnancy, dichorionic/diamniotic |
| O30.041 | Twin pregnancy, dichorionic/diamniotic, first trimester |
| O30.042 | Twin pregnancy, dichorionic/diamniotic, second trimester |
| O30.043 | Twin pregnancy, dichorionic/diamniotic, third trimester |
| O30.049 | Twin pregnancy, dichorionic/diamniotic, unspecified trimester |
| O30.09 | Twin pregnancy, unable to determine number of placenta and number of amniotic sacs |
| O30.091 | Twin pregnancy, unable to determine number of placenta and number of amniotic sacs, first trimester |
| O30.092 | Twin pregnancy, unable to determine number of placenta and number of amniotic sacs, second trimester |
| O30.093 | Twin pregnancy, unable to determine number of placenta and number of amniotic sacs, third trimester |
| O30.099 | Twin pregnancy, unable to determine number of placenta and number of amniotic sacs, unspecified trimester |
| O30.1 | Triplet pregnancy |
| O30.10 | Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs |
| O30.101 | Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, first trimester |
| O30.102 | Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, second trimester |
| O30.103 | Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, third trimester |
| O30.109 | Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, unspecified trimester |
| O30.11 | Triplet pregnancy with two or more monochorionic fetuses |
| O30.111 | Triplet pregnancy with two or more monochorionic fetuses, first trimester |
| O30.112 | Triplet pregnancy with two or more monochorionic fetuses, second trimester |
| O30.113 | Triplet pregnancy with two or more monochorionic fetuses, third trimester |
| O30.119 | Triplet pregnancy with two or more monochorionic fetuses, unspecified trimester |
| O30.12 | Triplet pregnancy with two or more monoamniotic fetuses |
| O30.121 | Triplet pregnancy with two or more monoamniotic fetuses, first trimester |
| O30.122 | Triplet pregnancy with two or more monoamniotic fetuses, second trimester |
| O30.123 | Triplet pregnancy with two or more monoamniotic fetuses, third trimester |
| O30.129 | Triplet pregnancy with two or more monoamniotic fetuses, unspecified trimester |
| O30.19 | Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs |
| O30.191 | Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, first trimester |
| O30.192 | Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, second trimester |
| O30.193 | Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, third trimester |
| O30.199 | Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, unspecified trimester |
| O30.2 | Quadruplet pregnancy |
| O30.20 | Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs |
| O30.201 | Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, first trimester |
| O30.202 | Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, second trimester |
| O30.203 | Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, third trimester |
| O30.209 | Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, unspecified trimester |
| O30.21 | Quadruplet pregnancy with two or more monochorionic fetuses |
| O30.211 | Quadruplet pregnancy with two or more monochorionic fetuses, first trimester |
| O30.212 | Quadruplet pregnancy with two or more monochorionic fetuses, second trimester |
| O30.213 | Quadruplet pregnancy with two or more monochorionic fetuses, third trimester |
| O30.219 | Quadruplet pregnancy with two or more monochorionic fetuses, unspecified trimester |
| O30.22 | Quadruplet pregnancy with two or more monoamniotic fetuses |
| O30.221 | Quadruplet pregnancy with two or more monoamniotic fetuses, first trimester |
| O30.222 | Quadruplet pregnancy with two or more monoamniotic fetuses, second trimester |
| O30.223 | Quadruplet pregnancy with two or more monoamniotic fetuses, third trimester |
| O30.229 | Quadruplet pregnancy with two or more monoamniotic fetuses, unspecified trimester |
| O30.29 | Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs |
| O30.291 | Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, first trimester |
| O30.292 | Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, second trimester |
| O30.293 | Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, third trimester |
| O30.299 | Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, unspecified trimester |
| O30.8 | Other specified multiple gestation |
| O30.80 | Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs |
| O30.801 | Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs, first trimester |
| O30.802 | Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs, second trimester |
| O30.803 | Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs, third trimester |
| O30.809 | Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs, unspecified trimester |
| O30.81 | Other specified multiple gestation with two or more monochorionic fetuses |
| O30.811 | Other specified multiple gestation with two or more monochorionic fetuses, first trimester |
| O30.812 | Other specified multiple gestation with two or more monochorionic fetuses, second trimester |
| O30.813 | Other specified multiple gestation with two or more monochorionic fetuses, third trimester |
| O30.819 | Other specified multiple gestation with two or more monochorionic fetuses, unspecified trimester |
| O30.82 | Other specified multiple gestation with two or more monoamniotic fetuses |
| O30.821 | Other specified multiple gestation with two or more monoamniotic fetuses, first trimester |
| O30.822 | Other specified multiple gestation with two or more monoamniotic fetuses, second trimester |
| O30.823 | Other specified multiple gestation with two or more monoamniotic fetuses, third trimester |
| O30.829 | Other specified multiple gestation with two or more monoamniotic fetuses, unspecified trimester |
| O30.89 | Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs |
| O30.891 | Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs, first trimester |
| O30.892 | Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs, second trimester |
| O30.893 | Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs, third trimester |
| O30.899 | Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs, unspecified trimester |
| O30.9 | Multiple gestation, unspecified |
| O30.90 | Multiple gestation, unspecified, unspecified trimester |
| O30.91 | Multiple gestation, unspecified, first trimester |
| O30.92 | Multiple gestation, unspecified, second trimester |
| O30.93 | Multiple gestation, unspecified, third trimester |
| O31 | Complications specific to multiple gestation |
| O31.0 | Papyraceous fetus |
| O31.00 | Papyraceous fetus, unspecified trimester |
| O31.01 | Papyraceous fetus, first trimester |
| O31.02 | Papyraceous fetus, second trimester |
| O31.03 | Papyraceous fetus, third trimester |
| O31.1 | Continuing pregnancy after spontaneous abortion of one fetus or more |
| O31.10 | Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester |
| O31.11 | Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester |
| O31.12 | Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester |
| O31.13 | Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester |
| O31.2 | Continuing pregnancy after intrauterine death of one fetus or more |
| O31.20 | Continuing pregnancy after intrauterine death of one fetus or more, unspecified trimester |
| O31.21 | Continuing pregnancy after intrauterine death of one fetus or more, first trimester |
| O31.22 | Continuing pregnancy after intrauterine death of one fetus or more, second trimester |
| O31.23 | Continuing pregnancy after intrauterine death of one fetus or more, third trimester |
| O31.3 | Continuing pregnancy after elective fetal reduction of one fetus or more |
| O31.30 | Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester |
| O31.31 | Continuing pregnancy after elective fetal reduction of one fetus or more, first trimester |
| O31.32 | Continuing pregnancy after elective fetal reduction of one fetus or more, second trimester |
| O31.33 | Continuing pregnancy after elective fetal reduction of one fetus or more, third trimester |
| O31.8 | Other complications specific to multiple gestation |
| O31.8X | Other complications specific to multiple gestation |
| O31.8X1 | Other complications specific to multiple gestation, first trimester |
| O31.8X2 | Other complications specific to multiple gestation, second trimester |
| O31.8X3 | Other complications specific to multiple gestation, third trimester |
| O31.8X9 | Other complications specific to multiple gestation, unspecified trimester |
| O32 | Maternal care for malpresentation of fetus |
| O32.0 | Maternal care for unstable lie |
| O32.1 | Maternal care for breech presentation |
| O32.2 | Maternal care for transverse and oblique lie |
| O32.3 | Maternal care for face, brow and chin presentation |
| O32.4 | Maternal care for high head at term |
| O32.6 | Maternal care for compound presentation |
| O32.8 | Maternal care for other malpresentation of fetus |
| O32.9 | Maternal care for malpresentation of fetus, unspecified |
| O33 | Maternal care for disproportion |
| O33.0 | Maternal care for disproportion due to deformity of maternal pelvic bones |
| O33.1 | Maternal care for disproportion due to generally contracted pelvis |
| O33.2 | Maternal care for disproportion due to inlet contraction of pelvis |
| O33.3 | Maternal care for disproportion due to outlet contraction of pelvis |
| O33.4 | Maternal care for disproportion of mixed maternal and fetal origin |
| O33.5 | Maternal care for disproportion due to unusually large fetus |
| O33.6 | Maternal care for disproportion due to hydrocephalic fetus |
| O33.7 | Maternal care for disproportion due to other fetal deformities |
| O33.8 | Maternal care for disproportion of other origin |
| O33.9 | Maternal care for disproportion, unspecified |
| O34 | Maternal care for abnormality of pelvic organs |
| O34.0 | Maternal care for congenital malformation of uterus |
| O34.00 | Maternal care for unspecified congenital malformation of uterus, unspecified trimester |
| O34.01 | Maternal care for unspecified congenital malformation of uterus, first trimester |
| O34.02 | Maternal care for unspecified congenital malformation of uterus, second trimester |
| O34.03 | Maternal care for unspecified congenital malformation of uterus, third trimester |
| O34.1 | Maternal care for benign tumor of corpus uteri |
| O34.10 | Maternal care for benign tumor of corpus uteri, unspecified trimester |
| O34.11 | Maternal care for benign tumor of corpus uteri, first trimester |
| O34.12 | Maternal care for benign tumor of corpus uteri, second trimester |
| O34.13 | Maternal care for benign tumor of corpus uteri, third trimester |
| O34.2 | Maternal care due to uterine scar from previous surgery |
| O34.21 | Maternal care for scar from previous cesarean delivery |
| O34.29 | Maternal care due to uterine scar from other previous surgery |
| O34.3 | Maternal care for cervical incompetence |
| O34.30 | Maternal care for cervical incompetence, unspecified trimester |
| O34.31 | Maternal care for cervical incompetence, first trimester |
| O34.32 | Maternal care for cervical incompetence, second trimester |
| O34.33 | Maternal care for cervical incompetence, third trimester |
| O34.4 | Maternal care for other abnormalities of cervix |
| O34.40 | Maternal care for other abnormalities of cervix, unspecified trimester |
| O34.41 | Maternal care for other abnormalities of cervix, first trimester |
| O34.42 | Maternal care for other abnormalities of cervix, second trimester |
| O34.43 | Maternal care for other abnormalities of cervix, third trimester |
| O34.5 | Maternal care for other abnormalities of gravid uterus |
| O34.51 | Maternal care for incarceration of gravid uterus |
| O34.511 | Maternal care for incarceration of gravid uterus, first trimester |
| O34.512 | Maternal care for incarceration of gravid uterus, second trimester |
| O34.513 | Maternal care for incarceration of gravid uterus, third trimester |
| O34.519 | Maternal care for incarceration of gravid uterus, unspecified trimester |
| O34.52 | Maternal care for prolapse of gravid uterus |
| O34.521 | Maternal care for prolapse of gravid uterus, first trimester |
| O34.522 | Maternal care for prolapse of gravid uterus, second trimester |
| O34.523 | Maternal care for prolapse of gravid uterus, third trimester |
| O34.529 | Maternal care for prolapse of gravid uterus, unspecified trimester |
| O34.53 | Maternal care for retroversion of gravid uterus |
| O34.531 | Maternal care for retroversion of gravid uterus, first trimester |
| O34.532 | Maternal care for retroversion of gravid uterus, second trimester |
| O34.533 | Maternal care for retroversion of gravid uterus, third trimester |
| O34.539 | Maternal care for retroversion of gravid uterus, unspecified trimester |
| O34.59 | Maternal care for other abnormalities of gravid uterus |
| O34.591 | Maternal care for other abnormalities of gravid uterus, first trimester |
| O34.592 | Maternal care for other abnormalities of gravid uterus, second trimester |
| O34.593 | Maternal care for other abnormalities of gravid uterus, third trimester |
| O34.599 | Maternal care for other abnormalities of gravid uterus, unspecified trimester |
| O34.6 | Maternal care for abnormality of vagina |
| O34.60 | Maternal care for abnormality of vagina, unspecified trimester |
| O34.61 | Maternal care for abnormality of vagina, first trimester |
| O34.62 | Maternal care for abnormality of vagina, second trimester |
| O34.63 | Maternal care for abnormality of vagina, third trimester |
| O34.7 | Maternal care for abnormality of vulva and perineum |
| O34.70 | Maternal care for abnormality of vulva and perineum, unspecified trimester |
| O34.71 | Maternal care for abnormality of vulva and perineum, first trimester |
| O34.72 | Maternal care for abnormality of vulva and perineum, second trimester |
| O34.73 | Maternal care for abnormality of vulva and perineum, third trimester |
| O34.8 | Maternal care for other abnormalities of pelvic organs |
| O34.80 | Maternal care for other abnormalities of pelvic organs, unspecified trimester |
| O34.81 | Maternal care for other abnormalities of pelvic organs, first trimester |
| O34.82 | Maternal care for other abnormalities of pelvic organs, second trimester |
| O34.83 | Maternal care for other abnormalities of pelvic organs, third trimester |
| O34.9 | Maternal care for abnormality of pelvic organ, unspecified |
| O34.90 | Maternal care for abnormality of pelvic organ, unspecified, unspecified trimester |
| O34.91 | Maternal care for abnormality of pelvic organ, unspecified, first trimester |
| O34.92 | Maternal care for abnormality of pelvic organ, unspecified, second trimester |
| O34.93 | Maternal care for abnormality of pelvic organ, unspecified, third trimester |
| O35 | Maternal care for known or suspected fetal abnormality and damage |
| O35.0 | Maternal care for (suspected) central nervous system malformation in fetus |
| O35.1 | Maternal care for (suspected) chromosomal abnormality in fetus |
| O35.2 | Maternal care for (suspected) hereditary disease in fetus |
| O35.3 | Maternal care for (suspected) damage to fetus from viral disease in mother |
| O35.4 | Maternal care for (suspected) damage to fetus from alcohol |
| O35.5 | Maternal care for (suspected) damage to fetus by drugs |
| O35.6 | Maternal care for (suspected) damage to fetus by radiation |
| O35.7 | Maternal care for (suspected) damage to fetus by other medical procedures |
| O35.8 | Maternal care for other (suspected) fetal abnormality and damage |
| O35.9 | Maternal care for (suspected) fetal abnormality and damage, unspecified |
| O36 | Maternal care for other fetal problems |
| O36.0 | Maternal care for rhesus isoimmunization |
| O36.01 | Maternal care for anti-D [Rh] antibodies |
| O36.011 | Maternal care for anti-D [Rh] antibodies, first trimester |
| O36.012 | Maternal care for anti-D [Rh] antibodies, second trimester |
| O36.013 | Maternal care for anti-D [Rh] antibodies, third trimester |
| O36.019 | Maternal care for anti-D [Rh] antibodies, unspecified trimester |
| O36.09 | Maternal care for other rhesus isoimmunization |
| O36.091 | Maternal care for other rhesus isoimmunization, first trimester |
| O36.092 | Maternal care for other rhesus isoimmunization, second trimester |
| O36.093 | Maternal care for other rhesus isoimmunization, third trimester |
| O36.099 | Maternal care for other rhesus isoimmunization, unspecified trimester |
| O36.1 | Maternal care for other isoimmunization |
| O36.11 | Maternal care for Anti-A sensitization |
| O36.111 | Maternal care for Anti-A sensitization, first trimester |
| O36.112 | Maternal care for Anti-A sensitization, second trimester |
| O36.113 | Maternal care for Anti-A sensitization, third trimester |
| O36.119 | Maternal care for Anti-A sensitization, unspecified trimester |
| O36.19 | Maternal care for other isoimmunization |
| O36.191 | Maternal care for other isoimmunization, first trimester |
| O36.192 | Maternal care for other isoimmunization, second trimester |
| O36.193 | Maternal care for other isoimmunization, third trimester |
| O36.199 | Maternal care for other isoimmunization, unspecified trimester |
| O36.2 | Maternal care for hydrops fetalis |
| O36.20 | Maternal care for hydrops fetalis, unspecified trimester |
| O36.21 | Maternal care for hydrops fetalis, first trimester |
| O36.22 | Maternal care for hydrops fetalis, second trimester |
| O36.23 | Maternal care for hydrops fetalis, third trimester |
| O36.4 | Maternal care for intrauterine death |
| O36.5 | Maternal care for known or suspected poor fetal growth |
| O36.51 | Maternal care for known or suspected placental insufficiency |
| O36.511 | Maternal care for known or suspected placental insufficiency, first trimester |
| O36.512 | Maternal care for known or suspected placental insufficiency, second trimester |
| O36.513 | Maternal care for known or suspected placental insufficiency, third trimester |
| O36.519 | Maternal care for known or suspected placental insufficiency, unspecified trimester |
| O36.59 | Maternal care for other known or suspected poor fetal growth |
| O36.591 | Maternal care for other known or suspected poor fetal growth, first trimester |
| O36.592 | Maternal care for other known or suspected poor fetal growth, second trimester |
| O36.593 | Maternal care for other known or suspected poor fetal growth, third trimester |
| O36.599 | Maternal care for other known or suspected poor fetal growth, unspecified trimester |
| O36.6 | Maternal care for excessive fetal growth |
| O36.60 | Maternal care for excessive fetal growth, unspecified trimester |
| O36.61 | Maternal care for excessive fetal growth, first trimester |
| O36.62 | Maternal care for excessive fetal growth, second trimester |
| O36.63 | Maternal care for excessive fetal growth, third trimester |
| O36.7 | Maternal care for viable fetus in abdominal pregnancy |
| O36.70 | Maternal care for viable fetus in abdominal pregnancy, unspecified trimester |
| O36.71 | Maternal care for viable fetus in abdominal pregnancy, first trimester |
| O36.72 | Maternal care for viable fetus in abdominal pregnancy, second trimester |
| O36.73 | Maternal care for viable fetus in abdominal pregnancy, third trimester |
| O36.8 | Maternal care for other specified fetal problems |
| O36.80 | Pregnancy with inconclusive fetal viability |
| O36.81 | Decreased fetal movements |
| O36.812 | Decreased fetal movements, second trimester |
| O36.813 | Decreased fetal movements, third trimester |
| O36.819 | Decreased fetal movements, unspecified trimester |
| O36.82 | Fetal anemia and thrombocytopenia |
| O36.821 | Fetal anemia and thrombocytopenia, first trimester |
| O36.822 | Fetal anemia and thrombocytopenia, second trimester |
| O36.823 | Fetal anemia and thrombocytopenia, third trimester |
| O36.829 | Fetal anemia and thrombocytopenia, unspecified trimester |
| O36.89 | Maternal care for other specified fetal problems |
| O36.891 | Maternal care for other specified fetal problems, first trimester |
| O36.892 | Maternal care for other specified fetal problems, second trimester |
| O36.893 | Maternal care for other specified fetal problems, third trimester |
| O36.899 | Maternal care for other specified fetal problems, unspecified trimester |
| O36.9 | Maternal care for fetal problem, unspecified |
| O36.90 | Maternal care for fetal problem, unspecified, unspecified trimester |
| O36.91 | Maternal care for fetal problem, unspecified, first trimester |
| O36.92 | Maternal care for fetal problem, unspecified, second trimester |
| O36.93 | Maternal care for fetal problem, unspecified, third trimester |
| O40 | Polyhydramnios |
| O40.1 | Polyhydramnios, first trimester |
| O40.2 | Polyhydramnios, second trimester |
| O40.3 | Polyhydramnios, third trimester |
| O40.9 | Polyhydramnios, unspecified trimester |
| O41 | Other disorders of amniotic fluid and membranes |
| O41.0 | Oligohydramnios |
| O41.00 | Oligohydramnios, unspecified trimester |
| O41.01 | Oligohydramnios, first trimester |
| O41.02 | Oligohydramnios, second trimester |
| O41.03 | Oligohydramnios, third trimester |
| O41.1 | Infection of amniotic sac and membranes |
| O41.10 | Infection of amniotic sac and membranes, unspecified |
| O41.101 | Infection of amniotic sac and membranes, unspecified, first trimester |
| O41.102 | Infection of amniotic sac and membranes, unspecified, second trimester |
| O41.103 | Infection of amniotic sac and membranes, unspecified, third trimester |
| O41.109 | Infection of amniotic sac and membranes, unspecified, unspecified trimester |
| O41.12 | Chorioamnionitis |
| O41.121 | Chorioamnionitis, first trimester |
| O41.122 | Chorioamnionitis, second trimester |
| O41.123 | Chorioamnionitis, third trimester |
| O41.129 | Chorioamnionitis, unspecified trimester |
| O41.14 | Placentitis |
| O41.141 | Placentitis, first trimester |
| O41.142 | Placentitis, second trimester |
| O41.143 | Placentitis, third trimester |
| O41.149 | Placentitis, unspecified trimester |
| O41.8 | Other specified disorders of amniotic fluid and membranes |
| O41.8X | Other specified disorders of amniotic fluid and membranes |
| O41.8X1 | Other specified disorders of amniotic fluid and membranes, first trimester |
| O41.8X2 | Other specified disorders of amniotic fluid and membranes, second trimester |
| O41.8X3 | Other specified disorders of amniotic fluid and membranes, third trimester |
| O41.8X9 | Other specified disorders of amniotic fluid and membranes, unspecified trimester |
| O41.9 | Disorder of amniotic fluid and membranes, unspecified |
| O41.90 | Disorder of amniotic fluid and membranes, unspecified, unspecified trimester |
| O41.91 | Disorder of amniotic fluid and membranes, unspecified, first trimester |
| O41.92 | Disorder of amniotic fluid and membranes, unspecified, second trimester |
| O41.93 | Disorder of amniotic fluid and membranes, unspecified, third trimester |
| O42 | Premature rupture of membranes |
| O42.0 | Premature rupture of membranes, onset of labor within 24 hours of rupture |
| O42.00 | Premature rupture of membranes, onset of labor within 24 hours of rupture, unspecified weeks of gestation |
| O42.01 | Preterm premature rupture of membranes, onset of labor within 24 hours of rupture |
| O42.011 | Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, first trimester |
| O42.012 | Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, second trimester |
| O42.013 | Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, third trimester |
| O42.019 | Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, unspecified trimester |
| O42.02 | Full-term premature rupture of membranes, onset of labor within 24 hours of rupture |
| O42.1 | Premature rupture of membranes, onset of labor more than 24 hours following rupture |
| O42.10 | Premature rupture of membranes, onset of labor more than 24 hours following rupture, unspecified weeks of gestation |
| O42.11 | Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture |
| O42.111 | Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, first trimester |
| O42.112 | Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, second trimester |
| O42.113 | Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, third trimester |
| O42.119 | Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, unspecified trimester |
| O42.12 | Full-term premature rupture of membranes, onset of labor more than 24 hours following rupture |
| O42.9 | Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor |
| O42.90 | Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified weeks of gestation |
| O42.91 | Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor |
| O42.911 | Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, first trimester |
| O42.912 | Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, second trimester |
| O42.913 | Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, third trimester |
| O42.919 | Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified trimester |
| O42.92 | Full-term premature rupture of membranes, unspecified as to length of time between rupture and onset of labor |
| O43 | Placental disorders |
| O43.0 | Placental transfusion syndromes |
| O43.01 | Fetomaternal placental transfusion syndrome |
| O43.011 | Fetomaternal placental transfusion syndrome, first trimester |
| O43.012 | Fetomaternal placental transfusion syndrome, second trimester |
| O43.013 | Fetomaternal placental transfusion syndrome, third trimester |
| O43.019 | Fetomaternal placental transfusion syndrome, unspecified trimester |
| O43.02 | Fetus-to-fetus placental transfusion syndrome |
| O43.021 | Fetus-to-fetus placental transfusion syndrome, first trimester |
| O43.022 | Fetus-to-fetus placental transfusion syndrome, second trimester |
| O43.023 | Fetus-to-fetus placental transfusion syndrome, third trimester |
| O43.029 | Fetus-to-fetus placental transfusion syndrome, unspecified trimester |
| O43.1 | Malformation of placenta |
| O43.10 | Malformation of placenta, unspecified |
| O43.101 | Malformation of placenta, unspecified, first trimester |
| O43.102 | Malformation of placenta, unspecified, second trimester |
| O43.103 | Malformation of placenta, unspecified, third trimester |
| O43.109 | Malformation of placenta, unspecified, unspecified trimester |
| O43.11 | Circumvallate placenta |
| O43.111 | Circumvallate placenta, first trimester |
| O43.112 | Circumvallate placenta, second trimester |
| O43.113 | Circumvallate placenta, third trimester |
| O43.119 | Circumvallate placenta, unspecified trimester |
| O43.12 | Velamentous insertion of umbilical cord |
| O43.121 | Velamentous insertion of umbilical cord, first trimester |
| O43.122 | Velamentous insertion of umbilical cord, second trimester |
| O43.123 | Velamentous insertion of umbilical cord, third trimester |
| O43.129 | Velamentous insertion of umbilical cord, unspecified trimester |
| O43.19 | Other malformation of placenta |