ICD-10 Code M06.052 – Rheumatoid arthritis without rheumatoid factor, left hip (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M06.052 – Rheumatoid arthritis without rheumatoid factor, left hip
What it is
This code identifies rheumatoid arthritis affecting the left hip when rheumatoid factor is not documented or is negative. Use it for inflammatory joint disease specifically limited to the left hip.
Clinical signs
Typical findings include hip pain, stiffness, reduced range of motion, and inflammatory joint tenderness. Clinical features vary; refer to documentation for laterality and whether rheumatoid factor is absent.
When to use this code
Use M06.052 when the provider documents rheumatoid arthritis of the left hip and also states rheumatoid factor is negative or not present. It fits encounters focused on the left hip only, unless other joints are separately documented.
Choose this code when the record supports rheumatoid arthritis but does not support seropositive disease. If laterality is unclear, or the diagnosis is not explicitly tied to the left hip, check documentation.
Do not use for
Do not use it for rheumatoid arthritis with positive rheumatoid factor, or for arthritis of another joint. Also avoid it when the chart does not specify the left hip or does not confirm rheumatoid arthritis.
Coding tip
Verify both laterality and serostatus in the assessment before assigning M06.052.