ICD-10 Code M05.73 – Rheumatoid arthritis with rheumatoid factor of wrist without organ or systems involvement (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M05.73 – Rheumatoid arthritis with rheumatoid factor of wrist without organ or systems involvement
What it is
This code identifies rheumatoid arthritis affecting the wrist with a positive rheumatoid factor and no documented organ or system involvement. Use it when the record specifies the wrist joint and does not report extra-articular disease.
Clinical signs
Typical findings include chronic inflammatory wrist pain, swelling, stiffness, and reduced range of motion. Clinical features vary; refer to documentation for confirmation of rheumatoid factor positivity and absence of systemic involvement.
When to use this code
Use this code when the provider documents rheumatoid arthritis of the wrist, rheumatoid factor positivity, and no organ or systems involvement. It fits localized RA limited to the wrist, even if other joints are not described. Check documentation if laterality or extent is unclear.
Do not use for
Do not use this code if rheumatoid factor is not documented or if the condition involves other joints or systemic manifestations. Check documentation for more specific RA coding when the wrist is not the only site.
Coding tip
Verify that the note explicitly links rheumatoid arthritis, rheumatoid factor, and the wrist before assigning M05.73.