E58
BillableDietary calcium deficiency
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is E58 an HCC code?
No. E58 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
E58 is the ICD-10-CM diagnosis code for dietary calcium deficiency. Insufficient calcium intake from diet, which can lead to weak bones and increased risk of fractures. E58 sits in the ICD-10-CM chapter for endocrine, nutritional and metabolic diseases (e00-e89), within the section covering other nutritional deficiencies (e50-e64).
E58 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.
Distinguish between dietary calcium deficiency and hypocalcemia; this code is specifically for nutritional deficiency.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for E58 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Distinguish between dietary calcium deficiency and hypocalcemia; this code is specifically for nutritional deficiency
- •Document whether deficiency is due to inadequate intake or malabsorption issues