ICD-10 Code M05.622 – Rheumatoid arthritis of left elbow with involvement of other organs and systems (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M05.622 – Rheumatoid arthritis of left elbow with involvement of other organs and systems
What it is
This code identifies rheumatoid arthritis affecting the left elbow, with documented involvement of other organs or body systems. Use it when the record shows rheumatoid disease plus extra-articular manifestations, not isolated joint pain.
Clinical signs
Typical findings include chronic inflammatory joint symptoms such as pain, swelling, stiffness, and reduced motion in the left elbow. Clinical features vary; refer to documentation for the specific organ or system involvement supporting the diagnosis.
When to use this code
Use M05.622 when the provider documents rheumatoid arthritis in the left elbow and also notes involvement beyond the joint, such as another organ or system. The record should clearly link the elbow arthritis to the rheumatoid condition. If laterality or extra-articular involvement is not documented, check documentation before coding.
Do not use for
Do not use this code for rheumatoid arthritis without documented involvement of other organs or systems. It is also not appropriate for unspecified elbow arthritis, right elbow disease, or nonspecific joint pain.
Coding tip
Verify both laterality and extra-articular involvement in the provider note before assigning M05.622.