ICD-10 Code M05.63 – Rheumatoid arthritis of wrist with involvement of other organs and systems (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M05.63 – Rheumatoid arthritis of wrist with involvement of other organs and systems
What it is
This code identifies rheumatoid arthritis affecting the wrist, with documented involvement of other organs or body systems. Use it when the wrist is part of a systemic rheumatoid disease process, not isolated joint disease.
Clinical signs
Typical findings include chronic inflammatory wrist pain, swelling, stiffness, and reduced range of motion. Clinical features vary; refer to documentation for evidence of extra-articular or systemic involvement.
When to use this code
Use this code when the record clearly states rheumatoid arthritis of the wrist and notes involvement of other organs or systems. You should also use it when the provider documents systemic rheumatoid disease with wrist involvement as the coded site.
If the chart does not specify the wrist or does not confirm other-organ involvement, check documentation before assigning M05.63.
Do not use for
Do not use this code for rheumatoid arthritis limited to the wrist without systemic involvement. Do not use it when the diagnosis is uncertain or when another inflammatory arthropathy is documented instead.
Coding tip
Verify both the wrist site and the extra-articular/systemic involvement in the provider note before coding.