ICD-10 Code M05.322 – Rheumatoid heart disease with rheumatoid arthritis of left elbow (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M05.322 – Rheumatoid heart disease with rheumatoid arthritis of left elbow
What it is
This code identifies rheumatoid arthritis affecting the left elbow, with associated rheumatoid heart disease. Use it when both the joint involvement and the cardiac manifestation are documented together.
Clinical signs
Findings may include chronic inflammatory arthritis of the left elbow with pain, swelling, stiffness, or reduced range of motion. Rheumatoid heart disease may be documented by cardiac involvement related to rheumatoid arthritis; clinical features vary, refer to documentation.
When to use this code
Use this code when the provider clearly documents rheumatoid heart disease and rheumatoid arthritis in the left elbow in the same encounter. It fits records that specify the elbow side and confirm the cardiac manifestation. If the heart disease is not stated, check documentation.
Do not use for
Do not use it for rheumatoid arthritis of the left elbow without rheumatoid heart disease, or for heart disease unrelated to rheumatoid arthritis. If the affected elbow is not the left side, select the correct laterality code.
Coding tip
Verify both conditions and laterality in the note before assigning M05.322.