O33.1

Maternal care for disproportion due to generally contracted pelvis

Billable / specific

O33.1 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Applicable to

  • Maternal care for disproportion due to contracted pelvis NOS causing disproportion

Includes (from O33)

  • the listed conditions as a reason for observation, hospitalization or other obstetric care of the mother, or for cesarean delivery before onset of labor
  • Note: CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
  • Note: Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
  • Note: Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
  • Note: 1st trimester- less than 14 weeks 0 days
  • Note: 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
  • Note: 3rd trimester- 28 weeks 0 days until delivery

Excludes1

Not coded here — never report together with this code.

  • supervision of normal pregnancy (Z34.-) (from O33)
  • disproportion with obstructed labor (O65-O66) (from O33)

Excludes2

Not included here — may be reported together when both conditions exist.

  • mental and behavioral disorders associated with the puerperium (F53.-) (from O33)
  • obstetrical tetanus (A34) (from O33)
  • postpartum necrosis of pituitary gland (E23.0) (from O33)
  • puerperal osteomalacia (M83.0) (from O33)

Use additional code

Add a code to identify the following, if applicable.

  • code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known. (from O33)

Also known as

  • Maternal care for disproportion due to contracted pelvis NOS causing disproportion
  • Contraction, contracture, contracted, pelvis, with disproportion
  • Infancy, infantile, infantilism, pelvis, with disproportion
  • Pregnancy, complicated by, contracted pelvis
  • Pregnancy, complicated by, disproportion, generally contracted pelvis
  • Small, pelvis, with disproportion

Parent code

  • O33Maternal care for disproportionHeader

Related codes

  • O33.0Maternal care for disproportion due to deformity of maternal pelvic bonesBillable
  • O33.2Maternal care for disproportion due to inlet contraction of pelvisBillable
  • O33.3Maternal care for disproportion due to outlet contraction of pelvisNeeds 7th char
  • O33.4Maternal care for disproportion of mixed maternal and fetal originNeeds 7th char
  • O33.5Maternal care for disproportion due to unusually large fetusNeeds 7th char
  • O33.6Maternal care for disproportion due to hydrocephalic fetusNeeds 7th char
  • O33.7Maternal care for disproportion due to other fetal deformitiesNeeds 7th char
  • O33.8Maternal care for disproportion of other originBillable
  • O33.9Maternal care for disproportion, unspecifiedBillable

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