ICD-10 Code M05.052 – Felty’s syndrome, left hip (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M05.052 – Felty’s syndrome, left hip
What it is
This code identifies Felty’s syndrome documented in the left hip. It combines the underlying rheumatoid arthritis-related syndrome with the specified anatomic site, so you should code it only when the record clearly links the condition to the left hip.
Clinical signs
Clinical features vary; refer to documentation. Felty’s syndrome is classically associated with rheumatoid arthritis, splenomegaly, and neutropenia, while hip involvement may present as pain, stiffness, or reduced range of motion.
When to use this code
Use this code when the provider documents Felty’s syndrome affecting the left hip. It is appropriate when the note clearly identifies the left hip as the involved site and supports a coded diagnosis rather than a rule-out or suspected condition.
If the record only states Felty’s syndrome without a hip site, check documentation for a more general code. If laterality is missing or conflicts, query the provider before assigning M05.052.
Do not use for
Do not use this code for unspecified Felty’s syndrome or for rheumatoid arthritis without documented Felty’s syndrome. Do not assign it when the left hip is not clearly identified in the chart.
Coding tip
Verify both the syndrome and the left-sided hip site in the provider note before coding M05.052.