ICD-10 Code M05.759 – Rheumatoid arthritis with rheumatoid factor of unspecified hip without organ or systems involvement (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M05.759 – Rheumatoid arthritis with rheumatoid factor of unspecified hip without organ or systems involvement
What it is
This code identifies rheumatoid arthritis affecting an unspecified hip, with rheumatoid factor present and no documented organ or system involvement. Use it when the record names the hip but does not specify right or left.
Clinical signs
Typical findings include inflammatory joint pain, stiffness, swelling, and reduced hip motion. Clinical features vary; refer to documentation for confirmation of rheumatoid factor and the absence of extra-articular involvement.
When to use this code
Use this code when the provider documents rheumatoid arthritis with rheumatoid factor in the hip and does not identify laterality. It also fits when the chart states there is no organ or systems involvement. If the record specifies right or left hip, choose the laterality-specific code instead.
Do not use for
Do not use this code for rheumatoid arthritis without rheumatoid factor, or when another joint is documented instead of the hip. Check documentation if organ or systems involvement is present.
Coding tip
Confirm both rheumatoid factor status and hip laterality in the note before assigning M05.759.