Anorectal fistula, simple, unspecified

This code describes a simple anorectal fistula, which is an abnormal, tunnel-like connection between the anal canal or rectum and the skin near the anus. "Simple" implies a single, straight tract without branching, and "unspecified" indicates that further details regarding its specific location or characteristics are not documented.

Use this code when the medical record clearly documents the presence of an anorectal fistula that is explicitly characterized as "simple" but lacks further anatomical specificity. This code is appropriate when the physician's documentation does not provide details such as the fistula's relationship to the anal sphincter or its exact internal opening.

• Only use this code when the documentation specifies "simple" and no other details are available.
• Avoid using this code if the documentation provides information about the fistula's complexity (e.g., complex, recurrent, horseshoe) or specific anatomical location.
• Ensure the documentation supports the "unspecified" nature; if a more specific simple fistula code (e.g., K60.3, K60.4) can be assigned, use that instead.