ICD-10 Code M05.119 – Rheumatoid lung disease with rheumatoid arthritis of unspecified shoulder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M05.119 – Rheumatoid lung disease with rheumatoid arthritis of unspecified shoulder
What it is
This code identifies rheumatoid arthritis affecting an unspecified shoulder, with associated rheumatoid lung disease. Use it when the record links the shoulder arthritis and lung involvement to the same rheumatoid condition.
Clinical signs
Findings may include shoulder pain, swelling, stiffness, and reduced range of motion, along with documented rheumatoid lung involvement. Clinical features vary; refer to documentation.
When to use this code
Use M05.119 when the provider documents rheumatoid arthritis in an unspecified shoulder and also states rheumatoid lung disease. The shoulder laterality is not specified, so do not assign a left or right shoulder code. Confirm that both conditions are clearly linked in the chart.
Do not use for
Do not use this code if the shoulder side is documented, because a more specific code may apply. Do not use it for lung disease without rheumatoid arthritis, or for rheumatoid arthritis without lung involvement.
Coding tip
Check the note for laterality and for explicit connection between the arthritis and lung disease before selecting M05.119.