Complications specific to multiple gestation
Requires 7th character
O31 requires a 7th character to be reported. Choose a complete code below.
Inclusion terms
Includes
- 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.-)
Excludes2
Not included here — may be reported together when both conditions exist.
- mental and behavioral disorders associated with the puerperium (F53.-)
- obstetrical tetanus (A34)
- postpartum necrosis of pituitary gland (E23.0)
- puerperal osteomalacia (M83.0)
- delayed delivery of second twin, triplet, etc. (O63.2)
- malpresentation of one fetus or more (O32.9)
- placental transfusion syndromes (O43.0-)
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.
7th character
This code requires a 7th character. Use the placeholder "X" for missing positions.
| Character | Meaning |
|---|---|
| 0 | not applicable or unspecified |
| 1 | fetus 1 |
| 2 | fetus 2 |
| 3 | fetus 3 |
| 4 | fetus 4 |
| 5 | fetus 5 |
| 9 | other fetus |
More specific codes O31
- O31.0Papyraceous fetusNeeds 7th char
- O31.1Continuing pregnancy after spontaneous abortion of one fetus or moreNeeds 7th char
- O31.2Continuing pregnancy after intrauterine death of one fetus or moreNeeds 7th char
- O31.3Continuing pregnancy after elective fetal reduction of one fetus or moreNeeds 7th char
- O31.4Continuing pregnancy after vanishing twin syndrome of one fetus or moreNeeds 7th char
- O31.8Other complications specific to multiple gestationNeeds 7th char
Related codes
- O30Multiple gestationHeader
- O32Maternal care for malpresentation of fetusNeeds 7th char
- O33Maternal care for disproportionHeader
- O34Maternal care for abnormality of pelvic organsHeader
- O35Maternal care for known or suspected fetal abnormality and damageNeeds 7th char
- O36Maternal care for other fetal problemsNeeds 7th char
- O40PolyhydramniosNeeds 7th char
- O41Other disorders of amniotic fluid and membranesNeeds 7th char
- O42Premature rupture of membranesHeader
- O43Placental disordersHeader
- O44Placenta previaHeader
- O45Premature separation of placenta [abruptio placentae]Header
- O46Antepartum hemorrhage, not elsewhere classifiedHeader
- O47False laborHeader
- O48Late pregnancyHeader