Regional enteritis of large intestine

This code represents Crohn's disease specifically affecting the large intestine (colon). It is a chronic inflammatory bowel disease characterized by transmural inflammation, skip lesions, and potential complications such as strictures, fistulas, and abscesses.

Use this code when documentation clearly indicates a diagnosis of Crohn's disease localized to the large intestine. Supporting documentation would include colonoscopy findings, biopsy results, imaging studies, and physician notes specifying colonic involvement.

• Differentiate from ulcerative colitis, which is also a chronic inflammatory condition of the large intestine but has different pathological characteristics.
• Ensure the documentation explicitly states "large intestine" or "colon" to justify this specific site.
• Consider additional codes for complications such as strictures (560.81), fistulas (569.81), or abscesses (567.2x).