ICD-10 Code M02.89 – Other reactive arthropathies, multiple sites (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M02.89 – Other reactive arthropathies, multiple sites
What it is
M02.89 identifies reactive arthritis affecting multiple joints when the specific reactive arthropathy is not otherwise classified. Use it for joint inflammation that follows an infection and involves more than one site.
Clinical signs
Typical findings include joint pain, swelling, warmth, and stiffness in several joints. Clinical features vary; refer to documentation for the infectious trigger and joint distribution.
When to use this code
Use this code when the provider documents reactive arthropathy or reactive arthritis and specifies multiple sites. It also fits cases where the condition is described as other reactive arthropathies without a more specific code. Check documentation for the underlying infection and whether the joint involvement is truly multiarticular.
Do not use for
Do not use M02.89 for a single affected joint or for a different inflammatory arthritis diagnosis. If the record does not clearly support a reactive process, check documentation before coding.
Coding tip
Code the reactive arthropathy only when the provider links it to a reactive process and documents multiple sites.