ICD-10 ↔ HCC Crosswalk

Bidirectional lookup between ICD-10-CM diagnosis codes and CMS-HCC risk adjustment categories, current for CMS-HCC model V28 (payment year 2026). Look up a single diagnosis code, or browse all 115 HCC categories and the codes that map to each.

Risk adjustment data from CMS (public domain). This tool shows HCC category labels and the ICD-10-to-HCC crosswalk only — it does not calculate risk adjustment factor (RAF) scores, which require per-segment coefficients published separately in each year's Rate Announcement.