ICD-10 Code M02.87 – Other reactive arthropathies, ankle and foot (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M02.87 – Other reactive arthropathies, ankle and foot
What it is
M02.87 identifies a reactive arthropathy affecting the ankle and foot. It is used when joint inflammation follows an infection elsewhere in the body and the site is specifically the ankle or foot.
Clinical signs
Typical findings include joint pain, swelling, stiffness, and reduced range of motion in the ankle or foot. Clinical features vary; refer to documentation for evidence of a preceding infection or reactive pattern.
When to use this code
Use this code when the provider documents reactive arthropathy involving the ankle or foot and does not name a more specific reactive arthritis type. It fits cases where the diagnosis is established clinically and the affected joint location is clear. Check documentation if laterality or a different joint is specified.
Do not use for
Do not use it for nonspecific ankle pain, traumatic arthritis, or septic arthritis. If the record does not support a reactive arthropathy diagnosis, choose the documented condition instead.
Coding tip
Verify that the record links the arthritis to a reactive process and confirms the ankle or foot as the involved site.