ICD-10 Code M05.75 – Rheumatoid arthritis with rheumatoid factor of hip without organ or systems involvement (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M05.75 – Rheumatoid arthritis with rheumatoid factor of hip without organ or systems involvement
What it is
This code identifies rheumatoid arthritis affecting the hip in a patient with rheumatoid factor positivity, without documented involvement of other organs or body systems. Use it when the record specifically links the hip joint to seropositive rheumatoid arthritis.
Clinical signs
Typical findings include inflammatory joint pain, stiffness, swelling, and reduced hip range of motion. Clinical features vary; refer to documentation, and confirm that rheumatoid factor positivity is documented.
When to use this code
Use this code when the provider documents rheumatoid arthritis with rheumatoid factor involving the hip and states there is no organ or systemic involvement. It is appropriate for encounters focused on hip symptoms, assessment, or follow-up of this specific joint disease. Check documentation if the hip is not clearly identified.
Do not use for
Do not use it for rheumatoid arthritis without rheumatoid factor, or when another joint is the only documented site. Do not assign it if systemic or organ involvement is documented instead.
Coding tip
Verify both the seropositive status and the hip as the affected joint before assigning M05.75.