ICD-10 Code
International Classification of Diseases, 10th Revision
May 29, 2017
  ICD-10 Code for Bacterial intestinal infection, unspecified A04.9

A04.9 is a valid1 ICD 10 diagnosis code.

A04.9 is valid for submission for HIPAA-covered transactions.

Chapter 1 Certain infectious and parasitic diseases (A00-B99)
Section A00-A09 Intestinal infectious diseases (A00-A09)
Category A04 Other bacterial intestinal infections

• See below for any additional coding requirements that may be necessary.

• Check for any notations, inclusions and/or exclusions that are specific to this ICD 10 code before using

1 No additional coding requirements necessary.
Inclusion Term
  • Bacterial enteritis NOS

Related Terms to “Bacterial intestinal infection, unspecified”

  • Diarrhea, diarrheal(disease) (infantile) (inflammatory) - R19.7
    • due to
      • bacteria - A04.9
  • Enteritis(acute) (diarrheal) (hemorrhagic) (noninfective) - K52.9
  • Spondylitis(chronic)See also Spondylopathy, inflammatory
    • in(due to)
      • enterobacteria - A04.9See also subcategory M49.8
See the 2017 ICD-10-CM Coding Guidelines.

When ICD 10 was implemented on October 1, 2015, it did not affect physicians', outpatient facilities', and hospital outpatient departments' use of CPT codes on Medicare Fee-For-Service claims. Providers should continue to use CPT codes to report these services.