Acute anal fissure

This code represents a recent tear or ulceration in the anoderm, the specialized skin lining the anal canal, typically occurring below the dentate line. It is characterized by acute onset of severe pain during and after defecation, often accompanied by bright red rectal bleeding.

Apply this code when documentation clearly indicates an acute anal fissure, meaning the condition is of recent onset (typically less than 6-8 weeks). Look for terms like "acute fissure," "new fissure," or symptoms consistent with a recent tear. Documentation should specify the acute nature to differentiate it from chronic presentations.

• Differentiate carefully from chronic anal fissure (K60.1); the duration of symptoms is key.
• Do not use for fistulas (K60.3-K60.5) or other anal/rectal conditions.
• Ensure the provider's documentation explicitly states "acute" or provides a timeframe indicating recent onset.