ICD-10 Code M05.35 – Rheumatoid heart disease with rheumatoid arthritis of hip (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M05.35 – Rheumatoid heart disease with rheumatoid arthritis of hip
What it is
This code identifies rheumatoid heart disease occurring with rheumatoid arthritis affecting the hip. Use it when the record documents both the cardiac involvement and the hip joint manifestation.
Clinical signs
Clinical features vary; refer to documentation. Rheumatoid arthritis of the hip may present with joint pain, stiffness, reduced range of motion, and difficulty walking, while rheumatoid heart disease requires documented cardiac involvement.
When to use this code
Use this code when the provider clearly links rheumatoid heart disease to rheumatoid arthritis with hip involvement. It is appropriate for active encounters where both conditions are documented together in the assessment or problem list. Check documentation if the relationship or site is unclear.
Do not use for
Do not use this code for rheumatoid arthritis of the hip without documented heart disease, or for heart disease not specified as rheumatoid. If the chart does not confirm the hip site, use a more general rheumatoid arthritis code.
Coding tip
Confirm both the cardiac diagnosis and the hip involvement are documented before assigning M05.35.