ICD-10-CM category
O33 Maternal care for known or suspected disproportion
O33 is a category, not a billable code. Report one of the 40 complete codes below.
Codes in O33
- O33.0Maternal care for disproportion due to deformity of maternal pelvic bones
- O33.1Maternal care for disproportion due to generally contracted pelvis
- O33.2Maternal care for disproportion due to inlet contraction of pelvis
- O33.3XX0Maternal care for disproportion due to outlet contraction of pelvis, not applicable or unspecified
- O33.3XX1Maternal care for disproportion due to outlet contraction of pelvis, fetus 1
- O33.3XX2Maternal care for disproportion due to outlet contraction of pelvis, fetus 2
- O33.3XX3Maternal care for disproportion due to outlet contraction of pelvis, fetus 3
- O33.3XX4Maternal care for disproportion due to outlet contraction of pelvis, fetus 4
- O33.3XX5Maternal care for disproportion due to outlet contraction of pelvis, fetus 5
- O33.3XX9Maternal care for disproportion due to outlet contraction of pelvis, other fetus
- O33.4XX0Maternal care for disproportion of mixed maternal and fetal origin, not applicable or unspecified
- O33.4XX1Maternal care for disproportion of mixed maternal and fetal origin, fetus 1
- O33.4XX2Maternal care for disproportion of mixed maternal and fetal origin, fetus 2
- O33.4XX3Maternal care for disproportion of mixed maternal and fetal origin, fetus 3
- O33.4XX4Maternal care for disproportion of mixed maternal and fetal origin, fetus 4
- O33.4XX5Maternal care for disproportion of mixed maternal and fetal origin, fetus 5
- O33.4XX9Maternal care for disproportion of mixed maternal and fetal origin, other fetus
- O33.5XX0Maternal care for disproportion due to unusually large fetus, not applicable or unspecified
- O33.5XX1Maternal care for disproportion due to unusually large fetus, fetus 1
- O33.5XX2Maternal care for disproportion due to unusually large fetus, fetus 2
- O33.5XX3Maternal care for disproportion due to unusually large fetus, fetus 3
- O33.5XX4Maternal care for disproportion due to unusually large fetus, fetus 4
- O33.5XX5Maternal care for disproportion due to unusually large fetus, fetus 5
- O33.5XX9Maternal care for disproportion due to unusually large fetus, other fetus
- O33.6XX0Maternal care for disproportion due to hydrocephalic fetus, not applicable or unspecified
- O33.6XX1Maternal care for disproportion due to hydrocephalic fetus, fetus 1
- O33.6XX2Maternal care for disproportion due to hydrocephalic fetus, fetus 2
- O33.6XX3Maternal care for disproportion due to hydrocephalic fetus, fetus 3
- O33.6XX4Maternal care for disproportion due to hydrocephalic fetus, fetus 4
- O33.6XX5Maternal care for disproportion due to hydrocephalic fetus, fetus 5
- O33.6XX9Maternal care for disproportion due to hydrocephalic fetus, other fetus
- O33.7XX0Maternal care for disproportion due to other fetal deformities, not applicable or unspecified
- O33.7XX1Maternal care for disproportion due to other fetal deformities, fetus 1
- O33.7XX2Maternal care for disproportion due to other fetal deformities, fetus 2
- O33.7XX3Maternal care for disproportion due to other fetal deformities, fetus 3
- O33.7XX4Maternal care for disproportion due to other fetal deformities, fetus 4
- O33.7XX5Maternal care for disproportion due to other fetal deformities, fetus 5
- O33.7XX9Maternal care for disproportion due to other fetal deformities, other fetus
- O33.8Maternal care for disproportion of other origin
- O33.9Maternal care for disproportion, unspecified
Outside the US? O33 in the international WHO ICD-10 lists its inclusion and exclusion notes.
Documenting O33? Write the note in seconds
Paste your rough notes and get a structured SOAP note. Free, no account needed.
ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
Look up another code
Stop looking codes up by hand
Docdemic listens to the consultation, writes the note and suggests the diagnosis and procedure codes that fit it, each one checked against your country’s official code list.
Try Docdemic free