ICD-10 Code K60.41 – Rectal fistula, simple (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K60.41 – Rectal fistula, simple
What it is
K60.41 identifies a simple rectal fistula, an abnormal passage involving the rectum. Use this code when documentation specifies a simple fistulous tract and not a more complex anorectal condition.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings include persistent drainage, local irritation, or a visible/open tract, but the chart should confirm the fistula is rectal and simple.
When to use this code
Use K60.41 when the provider diagnoses a simple rectal fistula in the assessment, problem list, or operative note. It is appropriate when the record clearly distinguishes this from anal, perianal, or complex fistulas. If the note is vague, check documentation before coding.
Do not use for
Do not use this code for anal, perianal, or complex fistulas unless the documentation specifically says rectal and simple. If the diagnosis is uncertain or described differently, check documentation.
Coding tip
Match the code to the exact anatomic site and complexity stated by the clinician.