ICD-10 Code K63.0 – Abscess of intestine (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K63.0 – Abscess of intestine
What it is
K63.0 identifies a localized collection of pus within the intestine. It is used when documentation states an intestinal abscess, without needing a more specific site or cause.
Clinical signs
Clinical features vary; refer to documentation. Commonly, you may see abdominal pain, fever, localized tenderness, or imaging evidence of an intraintestinal abscess.
When to use this code
Use K63.0 when the provider documents an abscess of the intestine or a similar confirmed intestinal suppurative process. Apply it when the record supports the diagnosis and no more specific code is available. If the note only describes abdominal infection without intestinal involvement, check documentation.
Do not use for
Do not use this code for abscesses in other abdominal organs or for nonspecific intra-abdominal infection. If the documentation identifies a different site or a postoperative complication, code the documented condition instead.
Coding tip
Verify that the abscess is documented as intestinal, not merely abdominal, before assigning K63.0.