Villonodular synovitis (pigmented), right wrist

This code describes a benign, proliferative condition of the synovial membrane, specifically affecting the right wrist. It is characterized by the formation of villi and nodules within the joint lining, often accompanied by hemosiderin deposition, giving it a pigmented appearance. This overgrowth can lead to joint pain, swelling, and restricted range of motion.

Use this code when documentation clearly indicates a diagnosis of villonodular synovitis affecting the right wrist. This diagnosis is typically confirmed through imaging studies (e.g., MRI) and often a biopsy of the synovial tissue. The physician's diagnostic statement must explicitly mention "villonodular synovitis" and specify the right wrist as the affected site.

• Ensure laterality is clearly documented as "right wrist" to support this specific code.
• Differentiate from other forms of synovitis or arthropathy; this code is specific to the villonodular type.
• Review pathology reports for definitive confirmation of pigmented villonodular synovitis (PVNS).