ICD-10 Code M05.82 – Other rheumatoid arthritis with rheumatoid factor of elbow (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M05.82 – Other rheumatoid arthritis with rheumatoid factor of elbow
What it is
This code identifies rheumatoid arthritis affecting the elbow when rheumatoid factor is present and the condition is classified as “other” rheumatoid arthritis. It tells you the joint involved and confirms seropositive disease.
Clinical signs
Typical findings include chronic inflammatory joint pain, swelling, stiffness, and reduced elbow motion. Clinical features vary; refer to documentation for evidence of rheumatoid factor positivity and elbow involvement.
When to use this code
Use this code when the record documents rheumatoid arthritis with rheumatoid factor affecting the elbow and no more specific rheumatoid arthritis subtype applies. It is appropriate when the provider links the elbow symptoms to seropositive rheumatoid disease. Check documentation if laterality, severity, or another site-specific code is needed.
Do not use for
Do not use it for rheumatoid arthritis without rheumatoid factor, or for elbow pain or swelling not documented as rheumatoid arthritis. Do not assign it when the record names a different rheumatoid arthritis subtype.
Coding tip
Confirm both the rheumatoid factor status and the elbow site in the provider note before coding.