10ICD Code Hub

A23

Header — not billable

Brucellosis

The ICD-10 code for brucellosis is A23.

A23 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 6 more specific codes below.

Clinical notes

Includes

Terms listed here further define or give examples of the conditions grouped under this code — they describe what the code covers, not a separate diagnosis.

  • Malta fever
  • Mediterranean fever
  • undulant fever

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

Child codes under A23

Related codes in this category