ICD-10 Code M05.55 – Rheumatoid polyneuropathy with rheumatoid arthritis of hip (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M05.55 – Rheumatoid polyneuropathy with rheumatoid arthritis of hip
What it is
This code identifies rheumatoid arthritis affecting the hip with associated polyneuropathy. Use it when the documentation links the nerve disorder to rheumatoid disease and specifies the hip joint.
Clinical signs
Expect findings of inflammatory hip arthritis such as pain, stiffness, and reduced range of motion, plus symptoms of polyneuropathy like numbness, tingling, burning, or weakness. Clinical features vary; refer to documentation.
When to use this code
Use M05.55 when the provider documents rheumatoid polyneuropathy and rheumatoid arthritis involving the hip in the same encounter. It is appropriate when the relationship is stated or clearly supported in the record. If the neuropathy or joint site is not specified, check documentation.
Do not use for
Do not use this code for rheumatoid arthritis without neuropathy, or for neuropathy unrelated to rheumatoid disease. Also avoid it when the affected joint is not the hip.
Coding tip
Verify both elements—rheumatoid polyneuropathy and hip involvement—before assigning M05.55.