O33.3: Maternal care for disproportion due to outlet contraction of pelvis
O33.3 is a non-billable header ICD-10-CM code for maternal care for disproportion due to outlet contraction of pelvis. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
One of the following 7th characters is to be assigned to code O33.3. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning code O33.3 with a 7th character of 1 through 9.
- 0
- not applicable or unspecified
- 1
- fetus 1
- 2
- fetus 2
- 3
- fetus 3
- 4
- fetus 4
- 5
- fetus 5
- 9
- other fetus
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Maternal care for disproportion due to mid-cavity contraction (pelvis)
- Maternal care for disproportion due to outlet contraction (pelvis)
Other codes that can never be billed with O33.3
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.
Alphabetic index entries that lead here
- Android pelvis›with disproportion(fetopelvic)
- Male type pelvis›with disproportion(fetopelvic)
- Funnel›pelvis›with disproportion(fetopelvic)
- Contraction, contracture, contracted›pelvis›with disproportion›mid-cavity
- Contraction, contracture, contracted›pelvis›with disproportion›outlet
- Delivery›cesarean›contracted pelvis›outlet
- Pregnancy›complicated by›contracted pelvis›outlet
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead O33.3
7 child codes. Green means billable.
- 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
Other codes under 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
- O33.4Maternal 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