Non-Billable / Non-Specific Code
ICD-10-CM A04 is the diagnosis code for Other bacterial intestinal infections. This code falls under the section "Intestinal infectious diseases" within Chapter 1 — Certain infectious and parasitic diseases (A00-B99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as A04. They are mutually exclusive:
Understanding where A04 sits in the ICD-10-CM classification helps ensure proper coding:
No, A04 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
A04 is the ICD-10-CM diagnosis code for "Other bacterial intestinal infections". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
A04 is located in Section A00-A09 — "Intestinal infectious diseases" within Chapter 1 of the ICD-10-CM Tabular List.
A04 has 10 sub-code(s) that provide more specific detail: A04.0, A04.1, A04.2, A04.3, A04.4 and more.
Use A04 when the patients documented diagnosis matches "Other bacterial intestinal infections" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Other bacterial intestinal infections is A04.
No, A04 is non-billable. Use a more specific sub-code for primary diagnosis billing.
A04 is in Chapter 1 of the ICD-10-CM Tabular List.
Type 1 Excludes for A04 include: bacterial foodborne intoxications, NEC (A05.-); tuberculous enteritis (A18.32).
Yes, A04 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.