ICD-10 Code M05.712 – Rheumatoid arthritis with rheumatoid factor of left shoulder without organ or systems involvement (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M05.712 – Rheumatoid arthritis with rheumatoid factor of left shoulder without organ or systems involvement
What it is
This code identifies rheumatoid arthritis with a positive rheumatoid factor affecting the left shoulder only, without documented involvement of other organs or body systems. Use it when the record clearly specifies the left shoulder as the affected joint.
Clinical signs
Typical findings include inflammatory joint pain, stiffness, swelling, and reduced shoulder range of motion. Clinical features vary; refer to documentation for confirmation of rheumatoid factor positivity and left shoulder involvement.
When to use this code
Use M05.712 when the provider documents rheumatoid arthritis with rheumatoid factor and specifies the left shoulder as the involved site. It is appropriate when there is no documented extra-articular or systemic involvement. If the laterality or joint is unclear, check documentation before coding.
Do not use for
Do not use this code for rheumatoid arthritis without rheumatoid factor, or when a different joint or side is documented. Do not assign it if systemic manifestations are recorded and a more specific code is supported.
Coding tip
Verify both rheumatoid factor status and laterality in the assessment before assigning M05.712.