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O31

Non-billable

Complications specific to multiple gestation

O31 is the ICD-10-CM code for Complications specific to multiple gestation. It is a non-billable category code — use a more specific child code such as O31.0 for billing.

Status
Header (non-billable)
Chapter
O00-O9A
Subcodes
5
Edition
FY2026

O00-O9A Pregnancy, childbirth and the puerperium

Excludes2 — not included here

  • •delayed delivery of second twin, triplet, etc. (O63.2)
  • •malpresentation of one fetus or more (O32.9)
  • •placental transfusion syndromes (O43.0-)

Frequently asked questions

What is ICD-10 code O31?
O31 is the ICD-10-CM code for "Complications specific to multiple gestation". It falls under O00-O9A Pregnancy, childbirth and the puerperium.
Is O31 a billable code?
No — O31 is a non-billable header code. Use a more specific child code (such as O31.0) for billing.
What are the subcodes of O31?
O31 has 5 more specific child codes, including O31.0, O31.1, O31.2.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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