ICD-10 Code M05.529 – Rheumatoid polyneuropathy with rheumatoid arthritis of unspecified elbow (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M05.529 – Rheumatoid polyneuropathy with rheumatoid arthritis of unspecified elbow
What it is
This code identifies rheumatoid arthritis affecting an unspecified elbow, with associated polyneuropathy. Use it when the record links the neuropathy to rheumatoid disease and does not specify right or left elbow.
Clinical signs
Typical findings include inflammatory joint symptoms in the elbow plus neuropathic complaints such as numbness, tingling, weakness, or reduced sensation. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents rheumatoid arthritis in an unspecified elbow and also documents polyneuropathy related to the rheumatoid condition. It is appropriate for encounters where the laterality of the elbow is not stated. Check documentation if the neuropathy is described without a clear rheumatoid link.
Do not use for
Do not use it if the elbow laterality is specified and another code applies. Do not use it for neuropathy from a different cause, or for rheumatoid arthritis without documented polyneuropathy.
Coding tip
Verify both the rheumatoid arthritis linkage and the unspecified elbow documentation before assigning M05.529.