ICD-10 Code M05.572 – Rheumatoid polyneuropathy with rheumatoid arthritis of left ankle and foot (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M05.572 – Rheumatoid polyneuropathy with rheumatoid arthritis of left ankle and foot
What it is
This code identifies rheumatoid arthritis affecting the left ankle and foot, with associated rheumatoid polyneuropathy. Use it when documentation shows both inflammatory joint disease and nerve involvement in the same limb.
Clinical signs
Findings may include chronic inflammatory joint pain, swelling, stiffness, and reduced motion in the left ankle or foot. Neuropathy can present with numbness, tingling, burning pain, or weakness; clinical features vary, refer to documentation.
When to use this code
Use this code when the provider documents rheumatoid arthritis involving the left ankle and foot plus rheumatoid polyneuropathy. It is appropriate when the neuropathy is linked to the rheumatoid condition, not when nerve symptoms are unrelated. Check documentation if laterality or the neuropathy relationship is unclear.
Do not use for
Do not use this code for rheumatoid arthritis in another joint, or for neuropathy without documented rheumatoid association. If the record does not specify the left ankle and foot, or the neuropathy is due to another cause, check documentation.
Coding tip
Confirm both the rheumatoid joint site and the neuropathy linkage before assigning M05.572.