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M12.29

Billable

Villonodular synovitis (pigmented), multiple sites

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

What This Code Means

A condition where abnormal tissue growth occurs in the joint lining at multiple locations throughout the body, causing inflammation and pigmentation in several joints simultaneously.

Coding Tips

  • This code indicates involvement of more than one joint site
  • Consider documenting which specific joints are affected for comprehensive medical record documentation

Code Hierarchy

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