ICD-10 Code M05.729 – Rheumatoid arthritis with rheumatoid factor of unspecified elbow without organ or systems involvement (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M05.729 – Rheumatoid arthritis with rheumatoid factor of unspecified elbow without organ or systems involvement
What it is
This code identifies rheumatoid arthritis affecting an unspecified elbow, with rheumatoid factor present and no organ or system involvement documented. Use it when the provider specifies rheumatoid arthritis at the elbow but does not name left or right.
Clinical signs
Typical findings include joint pain, swelling, stiffness, and reduced range of motion in the elbow. Clinical features vary; refer to documentation, especially for laterality, rheumatoid factor status, and any extra-articular involvement.
When to use this code
Use this code when the record clearly states rheumatoid arthritis with rheumatoid factor involving an elbow, but the side is not documented. It also fits when the provider documents no organ or systems involvement. If laterality is known, choose the more specific code.
Do not use for
Do not use it for rheumatoid arthritis without rheumatoid factor, or when the condition involves another joint. Check documentation if there is organ or system involvement, because that changes code selection.
Coding tip
Confirm both rheumatoid factor status and laterality before assigning M05.729, because unspecified elbow is only appropriate when the side is not stated.