ICD-10-CM · Chapter 1 · A00–B99
A37.9
Whooping cough, unspecified species
Certain infectious and parasitic diseases
Heads up:this is a parent code. It's typically not directly billable — you need to drill down to a more specific child code (one with additional digits) to use on a claim.
Quick facts
- Code
- A37.9
- Type
- Category / header (non-billable)
- ICD-10-CM chapter
- Chapter 1 — Certain infectious and parasitic diseases
- Category
- A37 — Whooping cough
- Specificity
- 4 characters
How coders use this code
ICD-10-CM A37.9 is a category (header) for whooping cough, unspecified species. It is generally not reported directly on a claim — coders drill down to a more specific child code (one with additional characters) that matches the documentation. Use the related codes below to find the billable code that fits, and verify against the annual NCHS/CMS guidelines.
Related codes in A37
- A37Whooping cough
- A37.0Whooping cough due to Bordetella pertussis
- A37.00Whooping cough due to Bordetella pertussis without pneumonia
- A37.01Whooping cough due to Bordetella pertussis with pneumonia
- A37.1Whooping cough due to Bordetella parapertussis
- A37.10Whooping cough due to Bordetella parapertussis without pneumonia
- A37.11Whooping cough due to Bordetella parapertussis with pneumonia
- A37.8Whooping cough due to other Bordetella species
- A37.80Whooping cough due to other Bordetella species without pneumonia
- A37.81Whooping cough due to other Bordetella species with pneumonia
- A37.90Whooping cough, unspecified species without pneumonia
- A37.91Whooping cough, unspecified species with pneumonia
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