ICD-10 Code E83.39 – Other disorders of phosphorus metabolism (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E83.39 – Other disorders of phosphorus metabolism
What it is
E83.39 identifies disorders of phosphorus metabolism that do not fit a more specific ICD-10 category. Use it for abnormal phosphorus handling or balance when the record does not name a different phosphorus-related diagnosis.
Clinical signs
Clinical features vary; refer to documentation. Patients may have findings related to abnormal phosphorus levels, such as bone or muscle complaints, but the exact presentation depends on the documented disorder.
When to use this code
Use E83.39 when the provider documents another phosphorus metabolism disorder and no more specific code applies. It is appropriate when the chart supports a phosphorus-related metabolic problem, but the diagnosis is not otherwise classified. Check documentation if the record only notes an abnormal lab result without a diagnosis.
Do not use for
Do not use this code for isolated abnormal phosphorus laboratory results without a documented disorder. Do not substitute it when a more specific metabolic, renal, endocrine, or bone condition explains the finding.
Coding tip
Code the documented phosphorus disorder, not the lab abnormality, and confirm whether a more specific ICD-10 option is available.