O33
O33: Maternal care for disproportion
Non-billable headerICD-10-CM
O33 is a non-billable header ICD-10-CM code for maternal care for disproportion. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1: never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
Includes
Conditions this code covers.
- the listed conditions as a reason for observation, hospitalization or other obstetric care of the mother, or for cesarean delivery before onset of labor
Other codes that can never be billed with O33
Their own Excludes1 notes name this code, so the conflict is not listed above.
- M95.5Acquired deformity of pelvis
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead O33
10 child codes. Green means billable.
- 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
- O33.3Maternal care for disproportion due to outlet contraction of pelvis
- O33.4Maternal care for disproportion of mixed maternal and fetal origin
- O33.5Maternal care for disproportion due to unusually large fetus
- O33.6Maternal care for disproportion due to hydrocephalic fetus
- O33.7Maternal care for disproportion due to other fetal deformities
- O33.8Maternal care for disproportion of other origin
- O33.9Maternal care for disproportion, unspecified