O29.211
BillableCerebral anoxia due to anesthesia during pregnancy, first trimester
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is O29.211 an HCC code?
No. O29.211 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
O29.211 is the ICD-10-CM diagnosis code for cerebral anoxia due to anesthesia during pregnancy, first trimester. Lack of oxygen to the brain caused by anesthesia during the first trimester of pregnancy. O29.211 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).
O29.211 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.
Document the mechanism of anoxia (e.g., aspiration, airway obstruction, hypotension) when available.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for O29.211 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Document the mechanism of anoxia (e.g., aspiration, airway obstruction, hypotension) when available
- •Verify trimester is clearly documented in the obstetric record