O30.203
BillableQuadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, third trimester
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is O30.203 an HCC code?
No. O30.203 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
O30.203 is the ICD-10-CM diagnosis code for quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, third trimester. A pregnancy with four fetuses where the number of placentas and fluid sacs is not specified, occurring in the third trimester (last three months of pregnancy). O30.203 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).
O30.203 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.
By the third trimester, attempt to obtain detailed ultrasound documentation of placental and amniotic sac configuration when possible.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for O30.203 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •By the third trimester, attempt to obtain detailed ultrasound documentation of placental and amniotic sac configuration when possible
- •This code may be used if documentation is genuinely unclear despite imaging attempts