ICD-10 Code M05.132 – Rheumatoid Lung Disease with Rheumatoid Arthritis of Left Wrist (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M05.132 – Rheumatoid lung disease with rheumatoid arthritis of left wrist
What it is
This code identifies rheumatoid arthritis affecting the left wrist along with rheumatoid lung disease. Use it when the record links both the joint disease and pulmonary involvement to rheumatoid arthritis.
Clinical signs
Findings may include chronic left wrist pain, swelling, stiffness, and reduced motion, plus lung involvement such as cough, dyspnea, or interstitial changes. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents rheumatoid arthritis in the left wrist and confirms rheumatoid lung disease as part of the same condition. It applies to encounter notes, problem lists, or assessments that clearly connect both diagnoses.
If the lung disease is not specified as rheumatoid-related, or the wrist laterality is not documented, check documentation before coding. You need both the left wrist site and the rheumatoid lung disease linkage.
Do not use for
Do not use this code for rheumatoid arthritis without lung involvement, or for lung disease unrelated to rheumatoid arthritis. Do not assign it if the affected wrist is not the left wrist.
Coding tip
Verify that the provider explicitly documents both rheumatoid lung disease and left wrist involvement before selecting M05.132.