ICD-10-CM diagnosis code
O30.132 Triplet pregnancy, trichorionic/triamniotic, second trimester
- Billable
- Yes, a complete code (FY2026)
- Category
- O30 Multiple gestation
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Other codes in O30
88 complete codes in this category.
- O30.119Triplet pregnancy with two or more monochorionic fetuses, unspecified trimester
- O30.121Triplet pregnancy with two or more monoamniotic fetuses, first trimester
- O30.122Triplet pregnancy with two or more monoamniotic fetuses, second trimester
- O30.123Triplet pregnancy with two or more monoamniotic fetuses, third trimester
- O30.129Triplet pregnancy with two or more monoamniotic fetuses, unspecified trimester
- O30.131Triplet pregnancy, trichorionic/triamniotic, first trimester
- O30.132Triplet pregnancy, trichorionic/triamniotic, second trimester
- O30.133Triplet pregnancy, trichorionic/triamniotic, third trimester
- O30.139Triplet pregnancy, trichorionic/triamniotic, unspecified trimester
- O30.191Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, first trimester
- O30.192Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, second trimester
- O30.193Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, third trimester
Documentation tips
- Make sure the note supports every element of the title, “Triplet pregnancy, trichorionic/triamniotic, second trimester”: each detail in it should be traceable to the history, examination or assessment.
- Code to the highest specificity the documentation supports. If a detail is missing from the note, add it to the note rather than choosing a less specific code by default.
- Check the Tabular List and official guidelines for instructional notes (“code first”, “use additional code”, Excludes1/Excludes2) that apply to O30.
The international WHO ICD-10 also has O30, with its inclusion and exclusion notes; titles and detail can differ from ICD-10-CM.
ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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