P05.17
BillableNewborn small for gestational age, 1750-1999 grams
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is P05.17 an HCC code?
No. P05.17 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
P05.17 is the ICD-10-CM diagnosis code for newborn small for gestational age, 1750-1999 grams. A newborn who is smaller than expected for their gestational age and weighs between 1750-1999 grams at birth. P05.17 sits in the ICD-10-CM chapter for certain conditions originating in the perinatal period (p00-p96), within the section covering disorders of newborn related to length of gestation and fetal growth (p05-p08).
P05.17 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 birth weight documentation falls within 1750-1999 grams to use this specific code.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for P05.17 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Verify birth weight documentation falls within 1750-1999 grams to use this specific code
- •Always pair with appropriate gestational age documentation to support the small for gestational age diagnosis