ICD-10 Code M02.341 – Reiter’s disease, right hand (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M02.341 – Reiter’s disease, right hand
What it is
M02.341 identifies Reiter’s disease, also called reactive arthritis, affecting the right hand. Use it when the chart documents inflammatory arthritis in that specific hand.
Clinical signs
Typical findings include joint pain, swelling, warmth, and stiffness in the right hand. Clinical features vary; refer to documentation for the exact joints and laterality.
When to use this code
Use this code when the provider documents Reiter’s disease or reactive arthritis limited to the right hand. It supports laterality-specific reporting when the condition is clearly assigned to that side. Check documentation if the record only states arthritis without confirming the diagnosis or location.
Do not use for
Do not use it for nonspecific hand pain, osteoarthritis, or arthritis in another hand or joint. If laterality is missing or the diagnosis is not confirmed, check documentation.
Coding tip
Verify both the reactive arthritis diagnosis and the right-hand laterality before assigning M02.341.