O34.63
BillableMaternal care for abnormality of vagina, third trimester
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is O34.63 an HCC code?
No. O34.63 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
O34.63 is the ICD-10-CM diagnosis code for maternal care for abnormality of vagina, third trimester. Medical care provided during the last three months of pregnancy for a pregnant woman who has an abnormal structure or condition of the vagina. O34.63 sits in the ICD-10-CM chapter for pregnancy, childbirth and the puerperium (o00-o9a), within the section covering maternal care related to the fetus and amniotic cavity and possible delivery problems (o30-o48).
O34.63 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.
Verify third trimester documentation (weeks 21 and beyond) in the medical record.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for O34.63 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Verify third trimester documentation (weeks 21 and beyond) in the medical record
- •Consider whether the vaginal abnormality impacts delivery planning or requires obstetric intervention