ICD-10 Code E83.3 – Disorders of phosphorus metabolism and phosphatases (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E83.3 – Disorders of phosphorus metabolism and phosphatases
What it is
E83.3 identifies disorders involving abnormal phosphorus handling or phosphatase-related metabolism. Use it when the record documents a phosphorus metabolism problem rather than a broader electrolyte or bone disorder.
Clinical signs
Clinical features vary; refer to documentation. Patients may have findings linked to abnormal phosphorus balance, and the chart may mention phosphatase abnormalities or a specific phosphorus metabolism disorder.
When to use this code
Use this code when the provider documents a disorder of phosphorus metabolism, phosphatase disorder, or a related metabolic condition without a more specific diagnosis. It may also fit when the record clearly ties symptoms or test abnormalities to phosphorus handling. Check documentation if the note is nonspecific.
Do not use for
Do not use E83.3 for isolated abnormal laboratory results without a diagnosed disorder. Also avoid it when the chart supports a different endocrine, renal, or bone condition instead.
Coding tip
Code the documented disorder itself, and query if the note only shows abnormal phosphorus or phosphatase findings.