ICD-10 Code K60.1 – Chronic anal fissure (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K60.1 – Chronic anal fissure
What it is
K60.1 identifies a persistent tear in the lining of the anal canal. Use it when documentation describes an anal fissure that is chronic rather than acute.
Clinical signs
Typical findings include pain with bowel movements, bright red rectal bleeding, and a fissure that has not healed over time. Chronic cases may show a visible sentinel tag or exposed sphincter fibers; check documentation.
When to use this code
Use K60.1 when the provider clearly documents a chronic anal fissure or long-standing fissure. It is appropriate when the record distinguishes the condition from an acute fissure or other anorectal disease. If the note is vague, check documentation before coding.
Do not use for
Do not use this code for an acute anal fissure or for nonspecific anal pain without a documented fissure. Do not apply it when the chart describes another rectal disorder instead.
Coding tip
Look for the word “chronic” or equivalent long-duration wording in the provider note before assigning K60.1.