ICD-10 Code M05.022 – Felty’s syndrome, left elbow (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M05.022 – Felty’s syndrome, left elbow
What it is
This code identifies Felty’s syndrome affecting the left elbow. It indicates rheumatoid arthritis with Felty’s syndrome documented at that specific joint site.
Clinical signs
Clinical features vary; refer to documentation. Felty’s syndrome is typically associated with longstanding rheumatoid arthritis and may include splenomegaly and neutropenia.
When to use this code
Use this code when the provider clearly documents Felty’s syndrome involving the left elbow. The record should support both the syndrome and the left-sided elbow site.
If the note only mentions rheumatoid arthritis or another elbow disorder without Felty’s syndrome, choose a different code. Check documentation for laterality and site specificity.
Do not use for
Do not use this code for generic rheumatoid arthritis of the elbow without Felty’s syndrome. Do not assign it if the left elbow is not documented.
Coding tip
Verify that the diagnosis includes Felty’s syndrome and left elbow laterality before coding.