Is A23.9 a billable ICD-10 code?

Yes. A23.9 (Brucellosis, unspecified) is billable and can be used for insurance claims. Always verify payer-specific requirements.

A23.9 ✓ Billable

Brucellosis, unspecified

Q: What is ICD-10 code A23.9?

ICD-10-CM code A23.9 stands for "Brucellosis, unspecified". It is a billable code in the Certain Infectious and Parasitic Diseases chapter, effective FY2026 (Oct 1, 2025 – Sep 30, 2026).

ICD-10-CM · FY2026 · Certain Infectious and Parasitic Diseases

Code

A23.9

System

ICD-10-CM

Billable

Yes — valid for submission

Effective

FY2026

Chapter

Certain Infectious and Parasitic Diseases

Source

CMS / CDC NCHS

⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.

Frequently asked questions

What is ICD-10 code A23.9?

ICD-10-CM code A23.9 represents Brucellosis, unspecified. It is a billable diagnosis code in the Certain Infectious and Parasitic Diseases chapter, effective October 1, 2025 – September 30, 2026.

Is A23.9 billable?

Yes. A23.9 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.

What chapter is A23.9 in?

A23.9 belongs to the Certain Infectious and Parasitic Diseases chapter (A00–B99) of ICD-10-CM.

Related codes in the A23 category

A23 Brucellosis Non-billable A23.0 Brucellosis due to Brucella melitensis Billable A23.1 Brucellosis due to Brucella abortus Billable A23.2 Brucellosis due to Brucella suis Billable A23.3 Brucellosis due to Brucella canis Billable A23.8 Other brucellosis Billable

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