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M66.279

Billable

Spontaneous rupture of extensor tendons, unspecified ankle and foot

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

What This Code Means

A sudden, unexpected tearing of the extensor tendons in the ankle and foot when the specific side is not documented or is bilateral.

Coding Tips

  • •Use this code only when laterality cannot be determined from documentation
  • •If documentation specifies right or left, use M66.271 or M66.272 instead for greater specificity

Code Hierarchy

└M66Spontaneous rupture of synovium and tendon└M66.2Spontaneous rupture of extensor tendons└M66.27Spontaneous rupture of extensor tendons, ankle and foot└M66.279Spontaneous rupture of extensor tendons, unspecified ankle and foot
└M66.279Spontaneous rupture of extensor tendons, unspecified ankle and foot

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