O31

O31: Complications specific to multiple gestation

Non-billable headerICD-10-CM

O31 is a non-billable header ICD-10-CM code for complications specific to multiple gestation. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

One of the following 7th characters is to be assigned to each code under category O31. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O31 that has a 7th character of 1 through 9.

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

Excludes2: not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

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

Other codes that can never be billed with O31

Their own Excludes1 notes name this code, so the conflict is not listed above.

O02Other abnormal products of conception

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead O31

6 child codes. Green means billable.