Specific code icon 2015 ICD-10-CM Diagnosis Code A09

Infectious gastroenteritis and colitis, unspecified

    2015 Billable Code

  • A09 is a billable ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • On October 1, 2015 ICD-10-CM will replace ICD-9-CM in the United States, therefore, A09 - and all other ICD-10-CM codes - should only be used for training or planning purposes until then.
  • This is the American ICD-10-CM version of A09. Other international ICD-10 versions may differ.

Clinical Information
  • A viral or bacterial infectious process affecting the large intestine.
Applicable To
  • Infectious colitis NOS
  • Infectious enteritis NOS
  • Infectious gastroenteritis NOS
Description Synonyms
  • Infectious colitis
  • Infectious diarrhea
  • Infectious diarrheal disease
  • Infectious gastroenteritis
  • Travelers diarrhea
  • Traveler's diarrhea
Type 1 Excludes
  • colitis NOS (K52.9)
  • diarrhea NOS (R19.7)
  • enteritis NOS (K52.9)
  • gastroenteritis NOS (K52.9)
  • noninfective gastroenteritis and colitis, unspecified (K52.9)
ICD-10-CM A09 is grouped within Diagnostic Related Group(s) (MS-DRG v30.0):
  • 391 Esophagitis, gastroent & misc digest disorders with mcc
  • 392 Esophagitis, gastroent & misc digest disorders without mcc

Convert ICD-10-CM A09 to ICD-9-CM

The following ICD-10-CM Index entries contain back-references to ICD-10-CM A09: