ICD-10 Code E58 – Dietary calcium deficiency (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E58 – Dietary calcium deficiency
What it is
E58 identifies dietary calcium deficiency, meaning the diet does not provide enough calcium to meet body needs. Use it when the record supports inadequate calcium intake rather than a broader malnutrition diagnosis.
Clinical signs
Clinical features vary; refer to documentation. Standard references may note bone pain, muscle cramps, or signs of poor bone mineralization, but these findings are not specific and should be documented clearly.
When to use this code
Use E58 when the clinician documents calcium deficiency caused by insufficient dietary intake. It may also fit when nutritional assessment specifically identifies low calcium intake without a more specific deficiency code. If the chart only says “low calcium,” check documentation.
Do not use for
Do not use this code for hypocalcemia, osteoporosis, or other bone disorders unless dietary calcium deficiency is documented. Avoid it when the issue is a general nutrient deficiency or another cause is stated.
Coding tip
Code E58 only when the documentation links the deficiency to diet; otherwise, query for clarification.