A37
Non-Billable

Whooping cough

Non-Billable / Non-Specific Code

What is Whooping cough?

ICD-10-CM A37 is the diagnosis code for Whooping cough. This code falls under the section "Other bacterial diseases" within Chapter 1 — Certain infectious and parasitic diseases (A00-B99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

Coding Guidelines for A37

Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.

ICD-10-CM Code Hierarchy

Understanding where A37 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 4 entries
A37.0Whooping cough due to Bordetella pertussisNon-BillableA37.00Whooping cough due to Bordetella pertussis without pneumoniaBillableA37.01Whooping cough due to Bordetella pertussis with pneumoniaBillableA37.1Whooping cough due to Bordetella parapertussisNon-BillableA37.10Whooping cough due to Bordetella parapertussis without pneumoniaBillableA37.11Whooping cough due to Bordetella parapertussis with pneumoniaBillableA37.8Whooping cough due to other Bordetella speciesNon-BillableA37.80Whooping cough due to other Bordetella species without pneumoniaBillableA37.81Whooping cough due to other Bordetella species with pneumoniaBillableA37.9Whooping cough, unspecified speciesNon-BillableA37.90Whooping cough, unspecified species without pneumoniaBillableA37.91Whooping cough, unspecified species with pneumoniaBillable
Related Codes

Frequently Asked Questions

Is A37 a billable ICD-10-CM code?

No, A37 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does A37 mean?

A37 is the ICD-10-CM diagnosis code for "Whooping cough". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What section is A37 in?

A37 is located in Section A30-A49 — "Other bacterial diseases" within Chapter 1 of the ICD-10-CM Tabular List.

What are the sub-codes of A37?

A37 has 4 sub-code(s) that provide more specific detail: A37.0, A37.1, A37.8, A37.9.

When should I use A37?

Use A37 when the patients documented diagnosis matches "Whooping cough" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Whooping cough?

The ICD-10-CM code for Whooping cough is A37.

Can A37 be used for primary diagnosis?

No, A37 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is A37 in?

A37 is in Chapter 1 of the ICD-10-CM Tabular List.

Is A37 valid for 2026?

Yes, A37 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousA36.9Diphtheria, unspecifiedNext →A37.0Whooping cough due to Bordetella pertussis
Code Details
A37
Whooping cough
Non-Billable / Non-Specific Code
1 — Certain infectious and parasitic diseases (A00-B99)
A30-A49 — Other bacterial diseases
2026 ICD-10-CM