Skip to content
HCC Buddy home

M12.261

Billable

Villonodular synovitis (pigmented), right knee

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A benign tumor-like condition of the joint lining in the right knee that causes inflammation and can contain iron deposits.

Coding Tips

  • •Confirm right knee is the affected side; do not use if bilateral or left-sided
  • •Knee involvement commonly causes swelling and effusion; document associated findings

Code Hierarchy

└M12Other and unspecified arthropathy└M12.2Villonodular synovitis (pigmented)└M12.26Villonodular synovitis (pigmented), knee└M12.261Villonodular synovitis (pigmented), right knee
└M12.261Villonodular synovitis (pigmented), right knee

Open M12.261 in the Interactive Encoder

See full code details, AI coding tips, HCC mappings, and related codes in our interactive encoder. Start your 14-day Pro trial — no credit card required.

Open in EncoderStart 14-Day Pro Trial