Whooping cough (A37) ICD-10-CM
The A37 code range covers whooping cough with 13 ICD-10-CM diagnosis codes. 8 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Codes in the A37 Range 13 codes · 8 billable
- A37 Whooping coughNon-billable
- A37.0 Whooping cough due to Bordetella pertussisNon-billable
- A37.00 Whooping cough due to Bordetella pertussis without pneumonia
- A37.01 Whooping cough due to Bordetella pertussis with pneumonia
- A37.1 Whooping cough due to Bordetella parapertussisNon-billable
- A37.10 Whooping cough due to Bordetella parapertussis without pneumonia
- A37.11 Whooping cough due to Bordetella parapertussis with pneumonia
- A37.8 Whooping cough due to other Bordetella speciesNon-billable
- A37.80 Whooping cough due to other Bordetella species without pneumonia
- A37.81 Whooping cough due to other Bordetella species with pneumonia
- A37.9 Whooping cough, unspecified speciesNon-billable
- A37.90 Whooping cough, unspecified species without pneumonia
- A37.91 Whooping cough, unspecified species with pneumonia
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the A37 range.
Whooping Cough
A respiratory infection caused by BORDETELLA PERTUSSIS and characterized by paroxysmal coughing ending in a prolonged crowing intake of breath.
About the A37 Code Range
Whooping cough is a respiratory infection marked by coughing spells that end with a prolonged, crowing intake of breath.
A37 groups the codes by the Bordetella species named as the cause. A37.0 names Bordetella pertussis, A37.1 names Bordetella parapertussis, and A37.8 covers other Bordetella species. A37.9 applies when the species is unspecified. Each branch then separates whooping cough with pneumonia from whooping cough without pneumonia.
Questions About This Page
How many billable codes are in the A37 range?
Of the 13 codes in this range, 8 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the A37 range classify?
The range classifies whooping cough. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
