A23

Non-billable

Brucellosis

A23 is the ICD-10-CM code for Brucellosis. It is a non-billable category code — use a more specific child code such as A23.0 for billing.

Status
Header (non-billable)
Chapter
A00-B99
Subcodes
6
Edition
FY2026

A00-B99 Certain infectious and parasitic diseases

Includes

  • Malta fever
  • Mediterranean fever
  • undulant fever

Frequently asked questions

What is ICD-10 code A23?
A23 is the ICD-10-CM code for "Brucellosis". It falls under A00-B99 Certain infectious and parasitic diseases.
Is A23 a billable code?
No — A23 is a non-billable header code. Use a more specific child code (such as A23.0) for billing.
What are the subcodes of A23?
A23 has 6 more specific child codes, including A23.0, A23.1, A23.2.

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

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