O33: Maternal care for disproportion includes the listed conditions as a reason for observation, hospitalization or other obstetric care of the mother, or for cesarean delivery before onset of labor excludes1 disproportion with obstructed labor (O65-O66) |
| O33.0: Maternal care for disproportion due to deformity of maternal pelvic bones |
| O33.1: Maternal care for disproportion due to generally contracted pelvis |
| O33.2: Maternal care for disproportion due to inlet contraction of pelvis |
| O33.3: Maternal care for disproportion due to outlet contraction of pelvis |
| O33.4: Maternal care for disproportion of mixed maternal and fetal origin |
| O33.5: Maternal care for disproportion due to unusually large fetus |
| O33.6: Maternal care for disproportion due to hydrocephalic fetus |
| O33.7: Maternal care for disproportion due to other fetal deformities |
| O33.8: Maternal care for disproportion of other origin |
| O33.9: Maternal care for disproportion, unspecified |