1. 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)
    1. O33.0 Maternal care for disproportion due to deformity of maternal pelvic bones

      Inclusion term(s):

      • Maternal care for disproportion due to pelvic deformity causing disproportion NOS
    2. O33.1 Maternal care for disproportion due to generally contracted pelvis

      Inclusion term(s):

      • Maternal care for disproportion due to contracted pelvis NOS causing disproportion
    3. O33.2 Maternal care for disproportion due to inlet contraction of pelvis

      Inclusion term(s):

      • Maternal care for disproportion due to inlet contraction (pelvis) causing disproportion
    4. O33.3 Maternal care for disproportion due to outlet contraction of pelvis

      Inclusion term(s):

      • Maternal care for disproportion due to mid-cavity contraction (pelvis)
      • Maternal care for disproportion due to outlet contraction (pelvis)
    5. O33.4 Maternal care for disproportion of mixed maternal and fetal origin

    6. O33.5 Maternal care for disproportion due to unusually large fetus

      Inclusion term(s):

      • Maternal care for disproportion due to disproportion of fetal origin with normally formed fetus
      • Maternal care for disproportion due to fetal disproportion NOS
    7. O33.6 Maternal care for disproportion due to hydrocephalic fetus

    8. O33.7 Maternal care for disproportion due to other fetal deformities

      Inclusion term(s):

      • Maternal care for disproportion due to fetal ascites
      • Maternal care for disproportion due to fetal hydrops
      • Maternal care for disproportion due to fetal meningomyelocele
      • Maternal care for disproportion due to fetal sacral teratoma
      • Maternal care for disproportion due to fetal tumor
    9. O33.8 Maternal care for disproportion of other origin

    10. O33.9 Maternal care for disproportion, unspecified

      Inclusion term(s):

      • Maternal care for disproportion due to cephalopelvic disproportion NOS
      • Maternal care for disproportion due to fetopelvic disproportion NOS
Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.