O9AHeader code — not billable

Maternal malignant neoplasms, traumatic injuries and abuse classifiable elsewhere but complicating pregnancy, childbirth and the puerperium

Short description: Maternl malig or injury compl preg/childbrth

Chapter
15. Pregnancy, childbirth and the puerperium
Category
O9A
Effective date
October 1, 2026

Related codes in category O9A

O9A.1Malignant neoplasm compl preg/chldbrthO9A.11Malignant neoplasm complicating pregnancyO9A.111Malignant neoplasm complicating pregnancy, first trimesterYesO9A.112Malignant neoplasm complicating pregnancy, second trimesterYesO9A.113Malignant neoplasm complicating pregnancy, third trimesterYesO9A.119Malignant neoplasm complicating pregnancy, unsp trimesterYesO9A.12Malignant neoplasm complicating childbirthYesO9A.13Malignant neoplasm complicating the puerperiumYesO9A.2Inj/poisn/oth conseq of external causes compl preg/chldbrthO9A.21Inj/poisn/oth conseq of external causes comp pregnancyO9A.211Inj/poisn/oth conseq of external causes comp preg, first triYesO9A.212Inj/poisn/oth conseq of extrn causes comp preg, second triYes

Frequently asked questions

What is ICD-10 code O9A?

O9A is an ICD-10-CM diagnosis code for Maternal malignant neoplasms, traumatic injuries and abuse classifiable elsewhere but complicating pregnancy, childbirth and the puerperium.

Is O9A a billable code?

No. O9A is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is O9A in?

O9A falls under Chapter 15: Pregnancy, childbirth and the puerperium.

When did O9A become effective?

O9A has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to O9A?

O9A belongs to category O9A, which includes 12 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.