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M25.18

Billable

Fistula, other specified site

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

What This Code Means

An abnormal tunnel or opening in a joint at a location other than those specifically listed, allowing fluid or infection to drain to the skin surface.

Coding Tips

  • •Document the specific joint location clearly in the medical record
  • •Use this code only when the fistula site does not fit into other M25.1x categories

Code Hierarchy

└M25Other joint disorder, not elsewhere classified└M25.1Fistula of joint└M25.18Fistula, other specified site
└M25.18Fistula, other specified site

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