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ICD-10-CM · FY 2026 APRIL UPDATE

O31.8

Other complications specific to multiple gestation

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
O31.8XOther complications specific to multiple gestationCategory
O31.8X1Other complications specific to multiple gestation, first trimesterCategory
O31.8X10Other complications specific to multiple gestation, first trimester, not applicable or unspecifiedBillable
O31.8X11Other complications specific to multiple gestation, first trimester, fetus 1Billable
O31.8X12Other complications specific to multiple gestation, first trimester, fetus 2Billable
O31.8X13Other complications specific to multiple gestation, first trimester, fetus 3Billable
O31.8X14Other complications specific to multiple gestation, first trimester, fetus 4Billable
O31.8X15Other complications specific to multiple gestation, first trimester, fetus 5Billable
O31.8X19Other complications specific to multiple gestation, first trimester, other fetusBillable
O31.8X2Other complications specific to multiple gestation, second trimesterCategory
O31.8X20Other complications specific to multiple gestation, second trimester, not applicable or unspecifiedBillable
O31.8X21Other complications specific to multiple gestation, second trimester, fetus 1Billable
O31.8X22Other complications specific to multiple gestation, second trimester, fetus 2Billable
O31.8X23Other complications specific to multiple gestation, second trimester, fetus 3Billable
O31.8X24Other complications specific to multiple gestation, second trimester, fetus 4Billable
O31.8X25Other complications specific to multiple gestation, second trimester, fetus 5Billable
O31.8X29Other complications specific to multiple gestation, second trimester, other fetusBillable
O31.8X3Other complications specific to multiple gestation, third trimesterCategory
O31.8X30Other complications specific to multiple gestation, third trimester, not applicable or unspecifiedBillable
O31.8X31Other complications specific to multiple gestation, third trimester, fetus 1Billable
O31.8X32Other complications specific to multiple gestation, third trimester, fetus 2Billable
O31.8X33Other complications specific to multiple gestation, third trimester, fetus 3Billable
O31.8X34Other complications specific to multiple gestation, third trimester, fetus 4Billable
O31.8X35Other complications specific to multiple gestation, third trimester, fetus 5Billable
O31.8X39Other complications specific to multiple gestation, third trimester, other fetusBillable
O31.8X9Other complications specific to multiple gestation, unspecified trimesterCategory
O31.8X90Other complications specific to multiple gestation, unspecified trimester, not applicable or unspecifiedBillable
O31.8X91Other complications specific to multiple gestation, unspecified trimester, fetus 1Billable
O31.8X92Other complications specific to multiple gestation, unspecified trimester, fetus 2Billable
O31.8X93Other complications specific to multiple gestation, unspecified trimester, fetus 3Billable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.