O9A.12 — Malignant neoplasm complicating childbirth
O9A.12 is a billable, specific ICD-10-CM code for malignant neoplasm complicating childbirth. It is valid for submission on a claim.
Excludes2 inherited from the categories above O9A.12
Also inherited, and the opposite of Excludes1: these conditions are not part of O9A.12, but a patient can have both, so you may code both.
Risk adjustment
O9A.12 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
O9A.12 is named in 2 Medicare coverage policies — 2 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A52450Billing and Coding: Paclitaxel (e.g., Taxol®/Abraxane ™)
- A57189Billing and Coding: Serum Magnesium
How O9A.12 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to O9A.12.
- Delivery›complicated›by›malignancy
Code history
O9A.12 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share O9A.1. If O9A.12 is not quite right, the correct code is usually one of these.
Questions about O9A.12
- Is O9A.12 a billable ICD-10-CM code?
- Yes. O9A.12 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does O9A.12 sit in the tabular list?
- Pregnancy, childbirth and the puerperium (O00-O9A), in the block Other obstetric conditions, not elsewhere classified (O94-O9A).