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A04

Non-billable

Other bacterial intestinal infections

A04 is the ICD-10-CM code for Other bacterial intestinal infections. It is a non-billable category code — use a more specific child code such as A04.0 for billing.

Status
Header (non-billable)
Chapter
A00-B99
Subcodes
10
Edition
FY2026

A00-B99 Certain infectious and parasitic diseases

Excludes1 — not coded here

  • •bacterial foodborne intoxications, NEC (A05.-)
  • •tuberculous enteritis (A18.32)

Frequently asked questions

What is ICD-10 code A04?
A04 is the ICD-10-CM code for "Other bacterial intestinal infections". It falls under A00-B99 Certain infectious and parasitic diseases.
Is A04 a billable code?
No — A04 is a non-billable header code. Use a more specific child code (such as A04.0) for billing.
What are the subcodes of A04?
A04 has 10 more specific child codes, including A04.0, A04.1, A04.2.
What is excluded from A04?
Excludes1 (not coded here): bacterial foodborne intoxications, NEC (A05.-); tuberculous enteritis (A18.32).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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