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    v1.0.28
    OpenPayerBilling CodesNoninfective enteritis and colitisICD-10-CM k50-crohns-disease-regional-enteritis
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    ICD-10-CM Code For Crohn's Disease Regional Enteritis: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group K50 includes diagnoses for Crohn's disease, a chronic noninfective enteritis that can affect any part of the gastrointestinal tract and may present with intestinal inflammation, strictures, fistulas, or perianal disease. These ICD-10-CM diagnosis codes are used to document clinical scenarios including disease location, presence of complications such as abscess or fistula, and severity or remission status. Accurate coding within the ICD-10-CM K50 group supports proper claim adjudication and complete clinical documentation for appropriate reimbursement.

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    ICD-10-CM K50: Crohn's Disease [Regional Enteritis] Overview

    The ICD-10-CM K50 group represents Crohn's disease, a form of noninfective regional enteritis affecting the gastrointestinal tract, commonly the terminal ileum and colon. These diagnoses target inflammatory conditions of the bowel that can involve any segment from mouth to anus and may produce complications such as strictures, fistulas, or abscesses. Accurate coding matters for reimbursement because it captures disease location, activity, and complications, which influence clinical complexity and claim adjudication.

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    When to Use

    Use a code from this group when documenting Crohn's disease in the medical record, including site-specific involvement (for example, ileitis, colitis) and any associated complications. Select the code that reflects the current clinical status, including active disease, remission, and presence of complications such as fistula or abscess.

    ICD-10-CM Codes

    28 rows

    ICD-10-CM CodeDescription
    K50.00Crohn's disease of small intestine without complications
    K50.011Crohn's disease of small intestine with rectal bleeding
    K50.012Crohn's disease of small intestine with intestinal obstruction
    K50.013Crohn's disease of small intestine with fistula
    K50.014Crohn's disease of small intestine with abscess
    K50.018Crohn's disease of small intestine with other complication
    K50.019Crohn's disease of small intestine with unspecified complications
    K50.10Crohn's disease of large intestine without complications
    K50.111Crohn's disease of large intestine with rectal bleeding
    K50.112Crohn's disease of large intestine with intestinal obstruction
    K50.113Crohn's disease of large intestine with fistula
    K50.114Crohn's disease of large intestine with abscess
    K50.118Crohn's disease of large intestine with other complication
    K50.119Crohn's disease of large intestine with unspecified complications
    K50.80Crohn's disease of both small and large intestine without complications
    K50.811Crohn's disease of both small and large intestine with rectal bleeding
    K50.812Crohn's disease of both small and large intestine with intestinal obstruction
    K50.813Crohn's disease of both small and large intestine with fistula
    K50.814Crohn's disease of both small and large intestine with abscess
    K50.818Crohn's disease of both small and large intestine with other complication

    Showing 1–20 of 28

    DRG Codes

    3 rows

    DRG CodeDescription
    385Inflammatory Bowel Disease with MCC
    386Inflammatory Bowel Disease with CC
    387Inflammatory Bowel Disease without CC/MCC

    Typical Clinical Scenarios

    • A young adult with a history of Crohn disease presents to the emergency department with 2 days of severe, crampy abdominal pain, fever, and several bloody stools. Imaging and exam show an acute flare with colonic inflammation and systemic symptoms; the visit is for active disease management and potential hospitalization for IV steroids and fluids. A code indicating Crohn disease with rectal bleeding or active colitis is assigned to capture the acute inflammatory episode. Typical codes: K50.012, K50.013
    • A middle-aged patient in outpatient gastroenterology follow-up has longstanding regional enteritis limited to the ileum with intermittent abdominal pain and weight loss but no current signs of active inflammation; management focuses on maintenance therapy and monitoring. Because the encounter documents chronic, nonactive disease of the small bowel without acute complications, a code for Crohn disease of the small intestine in remission or not specified as active is used. Typical codes: K50.10, K50.119
    • An older adult is admitted with a peri-anal abscess and fistula in the setting of Crohn disease, requiring surgical drainage and coordination of wound care; the Crohn-related perianal complication is the reason for hospitalization and impacts surgical coding and care planning. A Crohn disease code specifying perianal involvement or complicated perianal disease is assigned to reflect the complication of the underlying condition. Typical codes: K50.811, K50.812

    Related Codes

    K51-ULCERATIVE-COLITIS

    ICD-10-CM Code For Ulcerative Colitis: Group Overview

    K52-OTHER-AND-UNSPECIFIED-GASTROENTERITIS

    ICD-10-CM Code For Other And Unspecified Noninfective Gastroenteritis And Colitis: Group Overview

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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