ICD-10 Code K63 – Other diseases of intestine (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K63 – Other diseases of intestine
What it is
K63 covers intestinal disorders that are not classified elsewhere in the ICD-10-CM chapter. Use it for documented bowel conditions affecting the intestine when a more specific code is not available.
Clinical signs
Clinical features vary; refer to documentation. Patients may have abdominal pain, bowel habit changes, distention, or nonspecific intestinal symptoms depending on the underlying disorder.
When to use this code
Use K63 when the provider documents an intestinal disease that does not fit a more specific category. It is appropriate when the record identifies a bowel disorder but does not support a narrower code. If the note names a specific intestinal condition, code that diagnosis instead.
Do not use for
Do not use K63 for clearly named intestinal diseases that have their own ICD-10-CM codes. Check documentation if the condition is actually gastric, rectal, or infectious rather than a general intestinal disorder.
Coding tip
Confirm the exact intestinal diagnosis in the chart before defaulting to K63.