ICD-10 Code M05.619 – Rheumatoid arthritis of unspecified shoulder with involvement of other organs and systems (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M05.619 – Rheumatoid arthritis of unspecified shoulder with involvement of other organs and systems
What it is
This code identifies rheumatoid arthritis affecting an unspecified shoulder, with documented involvement of other organs or systems. Use it when the record confirms rheumatoid arthritis and extra-articular disease, but the shoulder side is not specified.
Clinical signs
Typical findings include chronic inflammatory joint pain, stiffness, swelling, and limited shoulder motion. Clinical features vary; refer to documentation for evidence of systemic or extra-articular involvement.
When to use this code
Use M05.619 when the provider documents rheumatoid arthritis in an unspecified shoulder and also notes involvement beyond the joints, such as another organ or body system. It fits when laterality is missing or not clinically documented. If the record does not clearly support systemic involvement, check documentation before coding.
Do not use for
Do not use this code for rheumatoid arthritis without organ or system involvement, or when the shoulder side is documented and a more specific code is available. Check documentation if the diagnosis is uncertain.
Coding tip
Verify both elements: unspecified shoulder and involvement of other organs or systems.