| 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 |