A37.9 – Whooping cough, unspecified species
ICD-10-CM 2027 diagnosis code · Other bacterial diseases
ICD-10-CM code
A37.9
- Code
A37.9(claims format:A379)- Description
- Whooping cough, unspecified species
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 1. Certain infectious and parasitic diseases (A00-B99)
- Block
- A30-A49 Other bacterial diseases
- Parent codes
- A37
Billable codes under A37.9
A37.9 is a header code and cannot be used on claims. Choose the most specific code:
Related codes in A37
Frequently asked questions
What is ICD-10 code A37.9?
A37.9 is the ICD-10-CM code for whooping cough, unspecified species, in the block A30-A49 (Other bacterial diseases).
Is A37.9 a billable code?
No. A37.9 is a header code with more specific child codes; report one of the billable codes listed above.
What category does A37.9 belong to?
It belongs to category A37 – Whooping cough.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.