O30.212
BillableQuadruplet pregnancy with two or more monochorionic fetuses, second trimester
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is O30.212 an HCC code?
No. O30.212 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
O30.212 is the ICD-10-CM diagnosis code for quadruplet pregnancy with two or more monochorionic fetuses, second trimester. A pregnancy with four fetuses where at least two of them share a single placenta, occurring in the second trimester. O30.212 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).
O30.212 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.
Document which fetuses are monochorionic and whether they are also monoamniotic, as this affects clinical management and risk stratification.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for O30.212 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Document which fetuses are monochorionic and whether they are also monoamniotic, as this affects clinical management and risk stratification
- •Monochorionic pregnancies require closer monitoring for twin-to-twin transfusion syndrome and other complications