Diagnosis Code

A09 INFECTIOUS GASTROENTERITIS AND COLITIS, UNSPECIFIED

Code Information

Diagnosis Code: A09

Short Description: Infectious gastroenteritis and colitis, unspecified

Long Description: Infectious gastroenteritis and colitis, unspecified

The code A09 is VALID for claim submission

Code Classification:

  • Certain infectious and parasitic diseases (A00–B99)
    • Intestinal infectious diseases (A00-A09)
      • Infectious gastroenteritis and colitis, unspecified (A09)
        • A09 Infectious gastroenteritis and colitis, unspecified

Code Version: 2019 ICD-10-CM

Synonyms

  • Acute erosive gastritis
  • Acute gastritis
  • Acute gastritis
  • Acute gastroenteritis
  • Acute gastroenteritis
  • Acute infectious nonbacterial gastroenteritis
  • Acute infective gastroenteritis
  • Acute ulcerative gastroenteritis complicating pneumonia
  • Catarrhal dysentery
  • Colitis presumed infectious
  • Colitis, enteritis and gastroenteritis presumed infectious
  • Diarrhea of presumed infectious origin
  • Disease of presumed infectious origin
  • Disease of presumed infectious origin
  • Disease of presumed infectious origin
  • Disease of presumed infectious origin
  • Disorder of gastrointestinal tract co-occurrent with human immunodeficiency virus infection
  • Dysenteric diarrhea
  • Dysentery
  • Enteritis presumed infectious
  • Epidemic diarrhea
  • Epidemic gastroenteritis
  • Erosive gastritis
  • Fungal gastrointestinal infection
  • Gastroenteritis presumed infectious
  • Gastrointestinal infection
  • Ill-defined infectious disease
  • Ill-defined infectious disease
  • Ill-defined intestinal infection
  • Ill-defined intestinal infection
  • Ill-defined intestinal infection associated with AIDS
  • Infection of digestive system
  • Infectious colitis
  • Infectious colitis, enteritis and gastroenteritis
  • Infectious diarrheal disease
  • Infectious disease of digestive tract
  • Infectious enteritis
  • Infectious gastroenteritis
  • Infectious gastroenteritis associated with AIDS
  • Infectious gastroenteritis co-occurrent with human immunodeficiency virus infection
  • Infective gastritis
  • Institution-acquired gastroenteritis
  • Institutional environment related disease
  • Intestinal infectious disease
  • Megacolon co-occurrent and due to infectious colitis
  • Megacolon, not Hirschsprung's
  • Phlegmonous enteritis
  • Purulent enteritis
  • Secondary megacolon - acquired
  • Septic enteritis
  • Suppurative gastritis
  • Toddler diarrhea
  • Viral and ill-defined gastrointestinal infections

Diagnostic Related Group(s)

The code A09 is grouped in the following Diagnostic Related Group(s) (MS-DRG v36.0)
  • Esophagitis, Gastroenteritis And Miscellaneous Digestive Disorders With Mcc (391)
  • Esophagitis, Gastroenteritis And Miscellaneous Digestive Disorders Without Mcc (392)

References to Index of Diseases and Injuries

The code A09 has the following ICD-10-CM references to the Index of Diseases and Injuries
  • Inclusion Terms:
    • Infectious colitis NOS
    • Infectious enteritis NOS
    • Infectious gastroenteritis NOS
  • Type 1 Excludes Notes:
    • colitis NOS (K52.9)
    • diarrhea NOS (R19.7)
    • enteritis NOS (K52.9)
    • gastroenteritis NOS (K52.9)
    • noninfective gastroenteritis and colitis, unspecified (K52.9)

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
A09 Right Arrow 009.0 Infectious enteritis NOS
This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description

This page was last updated on: 10/1/2018