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A37.9

Non-billable

Whooping cough, unspecified species

A37.9 is the ICD-10-CM code for Whooping cough, unspecified species. It is a non-billable category code — use a more specific child code such as A37.90 for billing.

Status
Header (non-billable)
Chapter
A00-B99
Parent
A37
Subcodes
2
Edition
FY2026

A00-B99 Certain infectious and parasitic diseases

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code A37.9?
A37.9 is the ICD-10-CM code for "Whooping cough, unspecified species". It falls under A00-B99 Certain infectious and parasitic diseases.
Is A37.9 a billable code?
No — A37.9 is a non-billable header code. Use a more specific child code (such as A37.90) for billing.
What are the subcodes of A37.9?
A37.9 has 2 more specific child codes, including A37.90, A37.91.

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

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