ICD-10 Code K60.313 – Anal fistula, simple, recurrent (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K60.313 – Anal fistula, simple, recurrent
What it is
This code identifies a simple anal fistula that has returned after prior treatment or healing. It describes an abnormal tract between the anal canal and nearby skin, with recurrence documented by the clinician.
Clinical signs
Typical findings include persistent or recurrent drainage near the anus, local irritation, and intermittent pain or swelling. Clinical features vary; refer to documentation.
When to use this code
Use K60.313 when the record clearly states a simple anal fistula and notes that it is recurrent. It also fits follow-up visits when the provider documents return of the same fistula after prior closure or treatment. Check documentation if the complexity or recurrence is unclear.
Do not use for
Do not use this code for an anal fissure, abscess without a fistula, or a fistula type not documented as simple. If recurrence is not stated, select the code that matches the documented episode.
Coding tip
Code recurrence only when the provider explicitly documents it; otherwise, do not assume prior history means recurrent disease.