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M66.331

Billable

Spontaneous rupture of flexor tendons, right forearm

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

What This Code Means

The flexor tendons in the right forearm spontaneously tear or rupture without a specific injury or trauma.

Coding Tips

  • Verify the rupture is in the forearm region and not in the hand or upper arm
  • Document impact on hand grip strength and finger flexion ability for clinical assessment

Code Hierarchy

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