ICD-10-CM diagnosis code
O9A.12 Malignant neoplasm complicating childbirth
- Billable
- Yes, a complete code (FY2026)
- Category
- O9A
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Other codes in O9A
30 complete codes in this category.
- O9A.111Malignant neoplasm complicating pregnancy, first trimester
- O9A.112Malignant neoplasm complicating pregnancy, second trimester
- O9A.113Malignant neoplasm complicating pregnancy, third trimester
- O9A.119Malignant neoplasm complicating pregnancy, unspecified trimester
- O9A.12Malignant neoplasm complicating childbirth
- O9A.13Malignant neoplasm complicating the puerperium
- O9A.211Injury, poisoning and certain other consequences of external causes complicating pregnancy, first trimester
- O9A.212Injury, poisoning and certain other consequences of external causes complicating pregnancy, second trimester
- O9A.213Injury, poisoning and certain other consequences of external causes complicating pregnancy, third trimester
- O9A.219Injury, poisoning and certain other consequences of external causes complicating pregnancy, unspecified trimester
- O9A.22Injury, poisoning and certain other consequences of external causes complicating childbirth
- O9A.23Injury, poisoning and certain other consequences of external causes complicating the puerperium
Documentation tips
- Make sure the note supports every element of the title, “Malignant neoplasm complicating childbirth”: 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 O9A.
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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