K50.1 is the authoritative medical code for Crohn's disease of large intestine. This classification is used in medical billing and clinical recording to specify the clinical criteria for crohn's disease of large intestine (ICD-10-CM K50.1), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Official Registry Overview & Definition
Crohn's disease of large intestine is a non-billable ICD-10-CM category code K50.1. A more specific billable subcode must be selected for claims submission. Includes: granulomatous enteritis; noninfective inflammatory bowel disease. Inclusion terms: Crohn's disease regional enteritis of colon; Crohn's disease regional enteritis of large bowel; Crohn's disease regional enteritis of rectum; Granulomatous colitis; Regional colitis. Excludes1 (not coded here): Crohn's disease of both small and large intestine K50.8; ulcerative colitis K51.-; irritable bowel syndrome K58.-; megacolon K59.3-. Use additional code: code to identify any associated fistulas, if applicable:; anal fistula K60.3-; anorectal fistula K60.5-; rectal fistula K60.4-; code to identify manifestations, such as:; pyoderma gangrenosum L88.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for K50.1 in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- granulomatous enteritis
- noninfective inflammatory bowel disease
Inclusion Terms
Alternative terms the tabular list files under this code.
- Crohn's disease regional enteritis of colon
- Crohn's disease regional enteritis of large bowel
- Crohn's disease regional enteritis of rectum
- Granulomatous colitis
- Regional colitis
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- Crohn's disease of both small and large intestine K50.8
- ulcerative colitis K51.-
- irritable bowel syndrome K58.-
- megacolon K59.3-
Use Additional Code
Supplementary codes the tabular list directs you to add.
- code to identify any associated fistulas, if applicable:
- anal fistula K60.3-
- anorectal fistula K60.5-
- rectal fistula K60.4-
- code to identify manifestations, such as:
- pyoderma gangrenosum L88
Frequently Asked Questions (FAQ) & Clinical Guidance
Can K50.1 be billed directly?
No. K50.1 (Crohn's disease of large intestine) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
What can't be coded together with K50.1?
Per Excludes1 instructions, K50.1 must not be reported with: Crohn's disease of both small and large intestine (K50.8); ulcerative colitis (K51.-); irritable bowel syndrome (K58.-); megacolon (K59.3-).
Is an additional code needed with K50.1?
Use additional code(s) to specify: code to identify any associated fistulas, if applicable:; anal fistula (K60.3-); anorectal fistula (K60.5-); rectal fistula (K60.4-).
What conditions are included under K50.1?
Crohn's disease of large intestine includes: Crohn's disease [regional enteritis] of colon; Crohn's disease [regional enteritis] of large bowel; Crohn's disease [regional enteritis] of rectum; Granulomatous colitis; Regional colitis.
Codes in This Family (8)
Official ICD-10-CM classifications in the same code family as K50.1, with their registry titles.
- K50.10 — Crohn's disease of large intestine without complications
- K50.11 — Crohn's disease of large intestine with complications
- K50.111 — Crohn's disease of large intestine with rectal bleeding
- K50.112 — Crohn's disease of large intestine with intestinal obstruction
- K50.113 — Crohn's disease of large intestine with fistula
- K50.114 — Crohn's disease of large intestine with abscess
- K50.118 — Crohn's disease of large intestine with other complication
- K50.119 — Crohn's disease of large intestine with unspecified complications
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures: