ICD-10 Code E83.5 – Disorders of calcium metabolism (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E83.5 – Disorders of calcium metabolism
What it is
E83.5 identifies disorders involving abnormal calcium metabolism. Use it when the record documents a calcium handling problem affecting the body’s balance, storage, or regulation of calcium.
Clinical signs
Clinical features vary; refer to documentation. Patients may have findings related to abnormal calcium levels or underlying metabolic disturbance, but the chart should support a calcium metabolism disorder specifically.
When to use this code
Use E83.5 when the provider documents a disorder of calcium metabolism, such as an abnormal calcium regulation state, and does not assign a more specific diagnosis. It may also apply when the condition is described as a calcium metabolism disturbance without further detail. Check documentation if the cause is stated elsewhere.
Do not use for
Do not use this code for isolated abnormal calcium laboratory results without a diagnosed disorder. Do not use it when the record identifies a more specific endocrine, renal, or bone condition instead.
Coding tip
Code the documented disorder, not the lab abnormality; if the chart is vague, check documentation for the exact metabolic diagnosis.