Coding and coverage · ICD-10-CM

K50 Crohn's disease [regional enteritis]

Not billable (header)Chapter 11

Report one of the more specific codes below.

Check coverage with this diagnosis

Codes under this one

  • K50.0 Crohn's disease of small intestineHeader
  • K50.1 Crohn's disease of large intestineHeader
  • K50.8 Crohn's disease of both small and large intestineHeader
  • K50.9 Crohn's disease, unspecifiedHeader

Instructional notes

Chapter 11

Excludes2Not included here: the patient may have both; report both when both are present.
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Section K50-K52

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
Includes
  • noninfective inflammatory bowel disease

This code

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
  • ulcerative colitis (K51.-)
Use additional codeAdd a second code for the full picture.
  • 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)
Includes
  • granulomatous enteritis

Chapter 11: Diseases of the digestive system · K50-K52 Noninfective enteritis and colitis (K50-K52)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.