ICD-10 Code G60.1 – Refsum’s Disease (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G60.1 – Refsum’s disease
What it is
G60.1 identifies Refsum’s disease, a rare inherited disorder that affects how the body breaks down phytanic acid. It is a form of peripheral neuropathy and metabolic disease.
Clinical signs
Common findings include peripheral neuropathy, retinitis pigmentosa, ataxia, and hearing loss. Clinical features vary; refer to documentation for the confirmed diagnosis.
When to use this code
Use G60.1 when the provider documents Refsum’s disease or hereditary phytanic acid storage disorder. Code it for confirmed diagnoses in patients with compatible neurologic or ophthalmic findings. If the record only mentions neuropathy without this specific disorder, use a different code.
Do not use for
Do not use this code for nonspecific peripheral neuropathy, retinitis pigmentosa alone, or other inherited metabolic disorders. Check documentation if the diagnosis is uncertain.
Coding tip
Assign G60.1 only when Refsum’s disease is explicitly documented or clearly confirmed in the chart.