ICD-10 Code K60.411 – Rectal fistula, simple, initial (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K60.411 – Rectal fistula, simple, initial
What it is
This code identifies a simple rectal fistula during the initial encounter. It refers to an abnormal tract involving the rectum that is documented as uncomplicated or simple.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings may include persistent drainage, local irritation, pain, or a visible opening associated with a rectal fistula.
When to use this code
Use this code when the provider documents a simple rectal fistula and the encounter is the initial one for active management. Confirm that the record supports both the rectal location and the “simple” designation. If the documentation does not clearly specify these details, check documentation.
Do not use for
Do not use this code for fistulas that are not rectal, or when the record describes a more complex condition. If the encounter is not initial, or the documentation is unclear, check documentation.
Coding tip
Always verify the anatomic site and encounter type before assigning K60.411.