Skip to content

M66.379

Billable

Spontaneous rupture of flexor 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 spontaneous breaking or tearing of the flexor tendons in an unspecified ankle and foot without a known injury.

Coding Tips

  • This unspecified code should be used only when laterality cannot be determined from the medical record
  • Make every effort to obtain clarification from the provider regarding right versus left ankle and foot involvement

Code Hierarchy

Open M66.379 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.