O33.5

Maternal care for disproportion due to unusually large fetus

Requires 7th character

O33.5 requires a 7th character to be reported. Choose a complete code below.

Inclusion terms

Applicable to

  • Maternal care for disproportion due to disproportion of fetal origin with normally formed fetus
  • Maternal care for disproportion due to fetal disproportion NOS

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)

7th character

This code requires a 7th character. Use the placeholder "X" for missing positions.

CharacterMeaning
0not applicable or unspecified
1fetus 1
2fetus 2
3fetus 3
4fetus 4
5fetus 5
9other fetus

Also known as

  • Maternal care for disproportion due to disproportion of fetal origin with normally formed fetus
  • Maternal care for disproportion due to fetal disproportion NOS
  • Delivery, cesarean, increased size, fetus
  • Delivery, cesarean, oversize fetus
  • Pregnancy, complicated by, oversize fetus

Parent code

  • O33Maternal care for disproportionHeader

More specific codes O33.5

  • O33.5XX0Maternal care for disproportion due to unusually large fetus, not applicable or unspecifiedBillable
  • O33.5XX1Maternal care for disproportion due to unusually large fetus, fetus 1Billable
  • O33.5XX2Maternal care for disproportion due to unusually large fetus, fetus 2Billable
  • O33.5XX3Maternal care for disproportion due to unusually large fetus, fetus 3Billable
  • O33.5XX4Maternal care for disproportion due to unusually large fetus, fetus 4Billable
  • O33.5XX5Maternal care for disproportion due to unusually large fetus, fetus 5Billable
  • O33.5XX9Maternal care for disproportion due to unusually large fetus, other fetusBillable

Related codes

  • O33.0Maternal care for disproportion due to deformity of maternal pelvic bonesBillable
  • O33.1Maternal care for disproportion due to generally contracted pelvisBillable
  • 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
  • O33.6Maternal 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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