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ICD-10 diagnosis code

O31 Complications specific to multiple gestation

This page in Swedish

O31 is the ICD-10 code for Complications specific to multiple gestation. It is a three-character category divided into 4 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block O30–O48 (Maternal care related to the fetus and amniotic cavity and possible delivery problems) in Chapter XV, Pregnancy, childbirth and the puerperium.

Code type
Category (3 characters)
Chapter
XV · O00–O99
Classification
WHO ICD-10, 2019 version

What O31 excludes

Conditions that look similar but belong under another code.

  • conjoined twins causing disproportion O33.7
  • delayed delivery of second twin, triplet, etc. O63.2
  • malpresentation of one fetus or more O32.5
  • with obstructed labour O64-O66

Subcodes of O31

O31 in national editions

Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.

SwedenICD-10-SE

O31Komplikationer specifika för flerbördsgraviditet

DenmarkICD-10-DK

DO31Komplikationer, som er specifikke for flerfoldsgraviditet

FinlandICD-10-FI

O31Moniraskaudelle ominaiset komplikaatiot

GermanyICD-10-GM

O31Komplikationen, die für eine Mehrlingsschwangerschaft spezifisch sind

FranceICD-10-FR

O31Complications spécifiques à une grossesse multiple

NetherlandsICD-10-NL

O31complicaties specifiek voor meerlingzwangerschap

United StatesICD-10-CM

Listed through more specific codes:

  • O31.30X0Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester, not applicable or unspecified
  • O31.30X1Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester, fetus 1
  • O31.30X2Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester, fetus 2
  • O31.30X3Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester, fetus 3
  • O31.30X4Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester, fetus 4
  • O31.30X5Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester, fetus 5
  • O31.30X9Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester, other fetus
  • O31.31X0Continuing pregnancy after elective fetal reduction of one fetus or more, first trimester, not applicable or unspecified
  • and 20 more national subcodes

Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.

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