ICD-10 Code M02.849 – Other reactive arthropathies, unspecified hand (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M02.849 – Other reactive arthropathies, unspecified hand
What it is
This code identifies a reactive arthropathy affecting the hand when the specific hand side or joint is not documented. It is used for inflammation of a joint that occurs after an infection, but the record does not specify more detail.
Clinical signs
Findings may include joint pain, swelling, stiffness, and reduced range of motion in the hand. Clinical features vary; refer to documentation for the exact joint involved and whether the condition is linked to a recent infection.
When to use this code
Use this code when the provider documents reactive arthropathy or reactive arthritis involving the hand, but does not identify a more specific hand site. It also fits when the note confirms a postinfectious joint reaction and laterality is not stated. Check documentation if the record mentions another arthropathy type.
Do not use for
Do not use it for rheumatoid arthritis, osteoarthritis, gout, or septic arthritis. If the condition is documented as a different reactive arthropathy site or a more specific hand joint, code that instead.
Coding tip
Assign the most specific reactive arthropathy code available, and use M02.849 only when the hand site is documented without further detail.