O29.212
BillableCerebral anoxia due to anesthesia during pregnancy, second trimester
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is O29.212 an HCC code?
No. O29.212 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
O29.212 is the ICD-10-CM diagnosis code for cerebral anoxia due to anesthesia during pregnancy, second trimester. Lack of oxygen to the brain caused by anesthesia during the second trimester of pregnancy. O29.212 sits in the ICD-10-CM chapter for pregnancy, childbirth and the puerperium (o00-o9a), within the section covering other maternal disorders predominantly related to pregnancy (o20-o29).
O29.212 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
Cerebral anoxia is a serious complication; ensure anesthetic causation is clearly documented.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for O29.212 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Cerebral anoxia is a serious complication; ensure anesthetic causation is clearly documented
- •Link this code to any resulting neurological sequelae with additional codes if present