ICD-10 Code M05.14 – Rheumatoid lung disease with rheumatoid arthritis of hand (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M05.14 – Rheumatoid lung disease with rheumatoid arthritis of hand
What it is
This code identifies rheumatoid arthritis affecting the hand with associated rheumatoid lung disease. Use it when documentation links the lung involvement to rheumatoid arthritis and specifies hand involvement.
Clinical signs
Clinical features may include chronic inflammatory hand arthritis with swelling, pain, stiffness, and reduced function. Lung findings can include interstitial or pleural involvement; clinical features vary, so refer to documentation.
When to use this code
Use this code when the provider documents rheumatoid lung disease and rheumatoid arthritis involving the hand in the same diagnosis statement. It also applies when the record clearly states the lung disease is associated with rheumatoid arthritis of the hand. If the site, association, or lung manifestation is unclear, check documentation.
Do not use for
Do not use this code if rheumatoid lung disease is documented without hand involvement, or if hand arthritis is not specified. Do not assume lung disease is rheumatoid-related without provider documentation.
Coding tip
Verify both the rheumatoid lung disease and the hand joint involvement are explicitly documented before assigning M05.14.