A37Header code — not billable

Whooping cough

Chapter
1. Certain infectious and parasitic diseases
Category
A37
Effective date
October 1, 2026

Related codes in category A37

Frequently asked questions

What is ICD-10 code A37?

A37 is an ICD-10-CM diagnosis code for Whooping cough.

Is A37 a billable code?

No. A37 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is A37 in?

A37 falls under Chapter 1: Certain infectious and parasitic diseases.

When did A37 become effective?

A37 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to A37?

A37 belongs to category A37, which includes 12 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.