V24 HCC 21 (Archived Category) ICD-10-CM
HCC 21 is a payment category of the retired CMS-HCC V24 model, which last determined Medicare Advantage payment in 2025. The 11 ICD-10-CM codes below are its final mappings, kept for lookback analysis and RADV audit reference. Each code shows where it maps in the live V28 model; 11 of them no longer risk-adjust at all.
Archived Codes of V24 HCC 21 11 codes
- E40 Kwashiorkor no V28 successor
- E41 Nutritional marasmus no V28 successor
- E42 Marasmic kwashiorkor no V28 successor
- E43 Unspecified severe protein-calorie malnutrition no V28 successor
- E44.0 Moderate protein-calorie malnutrition no V28 successor
- E44.1 Mild protein-calorie malnutrition no V28 successor
- E45 Retarded development following protein-calorie malnutrition no V28 successor
- E46 Unspecified protein-calorie malnutrition no V28 successor
- E64.0 Sequelae of protein-calorie malnutrition no V28 successor
- E88.A Wasting disease (syndrome) due to underlying condition no V28 successor
- R64 Cachexia no V28 successor
Questions About This Archived Category
Is V24 HCC 21 still paid?
No. The CMS-HCC V24 model last determined Medicare Advantage payment in 2025; from payment year 2026 the V28 model pays 100% of the risk score. This page exists for lookback analysis and RADV audit periods that predate the transition.
Where did these codes go in V28?
Each row above names the code's live V28 category, or marks it as having no V28 successor. The category-level picture, with destination counts for every V24 category, is on V24 to V28: What Changed.
Related References
Source: Centers for Medicare & Medicaid Services, Payment Year 2026 risk adjustment mapping and model software releases (CMS-HCC V28; CMS-HCC V24 from the last published V24 mappings, payment year 2025), applied to the FY 2026 ICD-10-CM code set. ICD List is not affiliated with CMS.
