ICD-10 Code M05.541 – Rheumatoid polyneuropathy with rheumatoid arthritis of right hand (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M05.541 – Rheumatoid polyneuropathy with rheumatoid arthritis of right hand
What it is
This code identifies rheumatoid arthritis affecting the right hand, together with polyneuropathy linked to the rheumatoid disease. It signals joint inflammation plus nerve involvement in the same patient.
Clinical signs
Typical findings include painful, swollen, or stiff hand joints with sensory or motor nerve symptoms such as numbness, tingling, or weakness. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents rheumatoid arthritis of the right hand and rheumatoid polyneuropathy as coexisting diagnoses. Code it when the neuropathy is attributed to the rheumatoid condition, not to another cause. Check documentation if laterality or the neuropathy link is unclear.
Do not use for
Do not use it for rheumatoid arthritis without documented polyneuropathy, or for neuropathy caused by diabetes, compression, or another non-rheumatoid condition. Do not assume right-hand involvement unless the record states it.
Coding tip
Verify both the rheumatoid arthritis site and the causal relationship to polyneuropathy before assigning M05.541.