| R83 | Abnormal findings in cerebrospinal fluid |
| R83.0 | Abnormal level of enzymes in cerebrospinal fluid |
| R83.1 | Abnormal level of hormones in cerebrospinal fluid |
| R83.2 | Abnormal level of other drugs, medicaments and biological substances in cerebrospinal fluid |
| R83.3 | Abnormal level of substances chiefly nonmedicinal as to source in cerebrospinal fluid |
| R83.4 | Abnormal immunological findings in cerebrospinal fluid |
| R83.5 | Abnormal microbiological findings in cerebrospinal fluid |
| R83.6 | Abnormal cytological findings in cerebrospinal fluid |
| R83.8 | Other abnormal findings in cerebrospinal fluid |
| R83.9 | Unspecified abnormal finding in cerebrospinal fluid |
| R84 | Abnormal findings in specimens from respiratory organs and thorax |
| R84.0 | Abnormal level of enzymes in specimens from respiratory organs and thorax |
| R84.1 | Abnormal level of hormones in specimens from respiratory organs and thorax |
| R84.2 | Abnormal level of other drugs, medicaments and biological substances in specimens from respiratory organs and thorax |
| R84.3 | Abnormal level of substances chiefly nonmedicinal as to source in specimens from respiratory organs and thorax |
| R84.4 | Abnormal immunological findings in specimens from respiratory organs and thorax |
| R84.5 | Abnormal microbiological findings in specimens from respiratory organs and thorax |
| R84.6 | Abnormal cytological findings in specimens from respiratory organs and thorax |
| R84.7 | Abnormal histological findings in specimens from respiratory organs and thorax |
| R84.8 | Other abnormal findings in specimens from respiratory organs and thorax |
| R84.9 | Unspecified abnormal finding in specimens from respiratory organs and thorax |
| R85 | Abnormal findings in specimens from digestive organs and abdominal cavity |
| R85.0 | Abnormal level of enzymes in specimens from digestive organs and abdominal cavity |
| R85.1 | Abnormal level of hormones in specimens from digestive organs and abdominal cavity |
| R85.2 | Abnormal level of other drugs, medicaments and biological substances in specimens from digestive organs and abdominal cavity |
| R85.3 | Abnormal level of substances chiefly nonmedicinal as to source in specimens from digestive organs and abdominal cavity |
| R85.4 | Abnormal immunological findings in specimens from digestive organs and abdominal cavity |
| R85.5 | Abnormal microbiological findings in specimens from digestive organs and abdominal cavity |
| R85.6 | Abnormal cytological findings in specimens from digestive organs and abdominal cavity |
| R85.61 | Abnormal cytologic smear of anus |
| R85.610 | Atypical squamous cells of undetermined significance on cytologic smear of anus (ASC-US) |
| R85.611 | Atypical squamous cells cannot exclude high grade squamous intraepithelial lesion on cytologic smear of anus (ASC-H) |
| R85.612 | Low grade squamous intraepithelial lesion on cytologic smear of anus (LGSIL) |
| R85.613 | High grade squamous intraepithelial lesion on cytologic smear of anus (HGSIL) |
| R85.614 | Cytologic evidence of malignancy on smear of anus |
| R85.615 | Unsatisfactory cytologic smear of anus |
| R85.616 | Satisfactory anal smear but lacking transformation zone |
| R85.618 | Other abnormal cytological findings on specimens from anus |
| R85.619 | Unspecified abnormal cytological findings in specimens from anus |
| R85.69 | Abnormal cytological findings in specimens from other digestive organs and abdominal cavity |
| R85.7 | Abnormal histological findings in specimens from digestive organs and abdominal cavity |
| R85.8 | Other abnormal findings in specimens from digestive organs and abdominal cavity |
| R85.81 | Anal high risk human papillomavirus (HPV) DNA test positive |
| R85.82 | Anal low risk human papillomavirus (HPV) DNA test positive |
| R85.89 | Other abnormal findings in specimens from digestive organs and abdominal cavity |
| R85.9 | Unspecified abnormal finding in specimens from digestive organs and abdominal cavity |
| R86 | Abnormal findings in specimens from male genital organs |
| R86.0 | Abnormal level of enzymes in specimens from male genital organs |
| R86.1 | Abnormal level of hormones in specimens from male genital organs |
| R86.2 | Abnormal level of other drugs, medicaments and biological substances in specimens from male genital organs |
| R86.3 | Abnormal level of substances chiefly nonmedicinal as to source in specimens from male genital organs |
| R86.4 | Abnormal immunological findings in specimens from male genital organs |
| R86.5 | Abnormal microbiological findings in specimens from male genital organs |
| R86.6 | Abnormal cytological findings in specimens from male genital organs |
| R86.7 | Abnormal histological findings in specimens from male genital organs |
| R86.8 | Other abnormal findings in specimens from male genital organs |
| R86.9 | Unspecified abnormal finding in specimens from male genital organs |
| R87 | Abnormal findings in specimens from female genital organs |
| R87.0 | Abnormal level of enzymes in specimens from female genital organs |
| R87.1 | Abnormal level of hormones in specimens from female genital organs |
| R87.2 | Abnormal level of other drugs, medicaments and biological substances in specimens from female genital organs |
| R87.3 | Abnormal level of substances chiefly nonmedicinal as to source in specimens from female genital organs |
| R87.4 | Abnormal immunological findings in specimens from female genital organs |
| R87.5 | Abnormal microbiological findings in specimens from female genital organs |
| R87.6 | Abnormal cytological findings in specimens from female genital organs |
| R87.61 | Abnormal cytological findings in specimens from cervix uteri |
| R87.610 | Atypical squamous cells of undetermined significance on cytologic smear of cervix (ASC-US) |
| R87.611 | Atypical squamous cells cannot exclude high grade squamous intraepithelial lesion on cytologic smear of cervix (ASC-H) |
| R87.612 | Low grade squamous intraepithelial lesion on cytologic smear of cervix (LGSIL) |
| R87.613 | High grade squamous intraepithelial lesion on cytologic smear of cervix (HGSIL) |
| R87.614 | Cytologic evidence of malignancy on smear of cervix |
| R87.615 | Unsatisfactory cytologic smear of cervix |
| R87.616 | Satisfactory cervical smear but lacking transformation zone |
| R87.618 | Other abnormal cytological findings on specimens from cervix uteri |
| R87.619 | Unspecified abnormal cytological findings in specimens from cervix uteri |
| R87.62 | Abnormal cytological findings in specimens from vagina |
| R87.620 | Atypical squamous cells of undetermined significance on cytologic smear of vagina (ASC-US) |
| R87.621 | Atypical squamous cells cannot exclude high grade squamous intraepithelial lesion on cytologic smear of vagina (ASC-H) |
| R87.622 | Low grade squamous intraepithelial lesion on cytologic smear of vagina (LGSIL) |
| R87.623 | High grade squamous intraepithelial lesion on cytologic smear of vagina (HGSIL) |
| R87.624 | Cytologic evidence of malignancy on smear of vagina |
| R87.625 | Unsatisfactory cytologic smear of vagina |
| R87.628 | Other abnormal cytological findings on specimens from vagina |
| R87.629 | Unspecified abnormal cytological findings in specimens from vagina |
| R87.69 | Abnormal cytological findings in specimens from other female genital organs |
| R87.7 | Abnormal histological findings in specimens from female genital organs |
| R87.8 | Other abnormal findings in specimens from female genital organs |
| R87.81 | High risk human papillomavirus (HPV) DNA test positive from female genital organs |
| R87.810 | Cervical high risk human papillomavirus (HPV) DNA test positive |
| R87.811 | Vaginal high risk human papillomavirus (HPV) DNA test positive |
| R87.82 | Low risk human papillomavirus (HPV) DNA test positive from female genital organs |
| R87.820 | Cervical low risk human papillomavirus (HPV) DNA test positive |
| R87.821 | Vaginal low risk human papillomavirus (HPV) DNA test positive |
| R87.89 | Other abnormal findings in specimens from female genital organs |
| R87.9 | Unspecified abnormal finding in specimens from female genital organs |
| R88 | Abnormal findings in other body fluids and substances |
| R88.0 | Cloudy (hemodialysis) (peritoneal) dialysis effluent |
| R88.8 | Abnormal findings in other body fluids and substances |
| R89 | Abnormal findings in specimens from other organs, systems and tissues |
| R89.0 | Abnormal level of enzymes in specimens from other organs, systems and tissues |
| R89.1 | Abnormal level of hormones in specimens from other organs, systems and tissues |
| R89.2 | Abnormal level of other drugs, medicaments and biological substances in specimens from other organs, systems and tissues |
| R89.3 | Abnormal level of substances chiefly nonmedicinal as to source in specimens from other organs, systems and tissues |
| R89.4 | Abnormal immunological findings in specimens from other organs, systems and tissues |
| R89.5 | Abnormal microbiological findings in specimens from other organs, systems and tissues |
| R89.6 | Abnormal cytological findings in specimens from other organs, systems and tissues |
| R89.7 | Abnormal histological findings in specimens from other organs, systems and tissues |
| R89.8 | Other abnormal findings in specimens from other organs, systems and tissues |
| R89.9 | Unspecified abnormal finding in specimens from other organs, systems and tissues |