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2025 ICD-10-CM code K50.1

Crohn's disease of the large intestine. This includes granulomatous colitis and regional colitis.

Use additional codes to identify any manifestations of Crohn's disease, such as L88 for pyoderma gangrenosum.

Medical necessity for procedures and treatments related to Crohn's disease of the large intestine (K50.1) must be supported by documentation demonstrating active disease and its impact on the patient's health. This may include symptoms, diagnostic findings, and failed conservative management. Specific payer guidelines should be consulted.

Clinicians diagnosing and managing Crohn's disease of the large intestine are responsible for accurate documentation of the disease location, severity, and manifestations. This includes distinguishing it from other inflammatory bowel diseases and ensuring appropriate treatment and follow-up care.

IMPORTANT:If Crohn’s disease affects both small and large intestine, use K50.8.For manifestations like pyoderma gangrenosum, use L88

In simple words: This code signifies Crohn's disease located in the large intestine (colon).

Crohn's disease affecting the large intestine, including the colon, rectum, and large bowel.It also encompasses granulomatous colitis and regional colitis.Excludes Crohn's disease affecting both the small and large intestine (K50.8).

Example 1: A patient presents with persistent diarrhea, abdominal pain, and weight loss.Colonoscopy reveals characteristic findings of Crohn's disease limited to the large intestine, confirming the diagnosis of K50.1., A patient with a history of Crohn's disease confined to the large bowel experiences a flare-up with increased abdominal cramping and bloody stools. The K50.1 code is used to document the exacerbation., During a routine colonoscopy, a patient is found to have granulomatous inflammation isolated to the rectum.Biopsies confirm the diagnosis of Crohn's disease, and the K50.1 code is assigned.

Documentation should clearly specify the affected portion(s) of the large intestine (colon, rectum, large bowel). Include supporting details from diagnostic tests like colonoscopy and biopsy findings, symptoms, and disease severity.

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