Is A03.9 a billable ICD-10 code?

Yes. A03.9 (Shigellosis, unspecified) is billable and can be used for insurance claims. Always verify payer-specific requirements.

A03.9 ✓ Billable

Shigellosis, unspecified

Q: What is ICD-10 code A03.9?

ICD-10-CM code A03.9 stands for "Shigellosis, 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

A03.9

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 A03.9?

ICD-10-CM code A03.9 represents Shigellosis, unspecified. It is a billable diagnosis code in the Certain Infectious and Parasitic Diseases chapter, effective October 1, 2025 – September 30, 2026.

Is A03.9 billable?

Yes. A03.9 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.

What chapter is A03.9 in?

A03.9 belongs to the Certain Infectious and Parasitic Diseases chapter (A00–B99) of ICD-10-CM.

Related codes in the A03 category

A03 Shigellosis Non-billable A03.0 Shigellosis due to Shigella dysenteriae Billable A03.1 Shigellosis due to Shigella flexneri Billable A03.2 Shigellosis due to Shigella boydii Billable A03.3 Shigellosis due to Shigella sonnei Billable A03.8 Other shigellosis Billable

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