ICD-10 Code M05.111 – Rheumatoid lung disease with rheumatoid arthritis of right shoulder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M05.111 – Rheumatoid lung disease with rheumatoid arthritis of right shoulder
What it is
This code identifies rheumatoid arthritis affecting the right shoulder together with rheumatoid lung disease. Use it when the record clearly links both conditions to the same rheumatoid disease process.
Clinical signs
Clinical features vary; refer to documentation. Records may describe inflammatory shoulder pain, stiffness, reduced range of motion, and pulmonary involvement such as interstitial lung disease or other rheumatoid lung manifestations.
When to use this code
Use this code when the provider documents rheumatoid arthritis in the right shoulder and also documents rheumatoid lung disease. The laterality matters, so confirm the right shoulder is specified. If the lung condition is mentioned without a rheumatoid link, check documentation before coding.
Do not use for
Do not use this code if the shoulder involvement is left, bilateral, or unspecified. Do not assign it when lung disease is present but not documented as rheumatoid lung disease.
Coding tip
Verify both the joint laterality and the pulmonary diagnosis in the same note or linked assessment before selecting M05.111.