O9A.11Header code — not billable
Malignant neoplasm complicating pregnancy
- Chapter
- 15. Pregnancy, childbirth and the puerperium
- Category
- O9A
- Effective date
- October 1, 2026
Related codes in category O9A
O9AMaternl malig or injury compl preg/childbrthO9A.1Malignant neoplasm compl preg/chldbrthO9A.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.11?
O9A.11 is an ICD-10-CM diagnosis code for Malignant neoplasm complicating pregnancy.
Is O9A.11 a billable code?
No. O9A.11 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.11 in?
O9A.11 falls under Chapter 15: Pregnancy, childbirth and the puerperium.
When did O9A.11 become effective?
O9A.11 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to O9A.11?
O9A.11 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.