ICD-10-CM Alphabetic Index · FY 2027 17 Entries
Whooping cough in the ICD-10-CM Index ICD-10-CM
The main term Whooping cough carries 17 index entries pointing to 8 ICD-10-CM codes. The default entry is A37.90, the code the bare main term maps to; every indented line below refines the term by site, cause, or type. Verify any candidate code in the Tabular List before using it.
✓ Built from the official CMS FY 2027 index fileEffective Oct 1, 2026 – Sep 30, 2027
17
Index Entries
8
Codes Referenced
A37.90
Default Code
W
Letter
17 of 17 shown
ICD-10-CM
Index Entries Under Whooping cough 17 entries · 8 codes
Whooping cough A37.90
with pneumonia A37.91
due to Bordetella
bronchiseptica A37.81
parapertussis A37.11
pertussis A37.01
specified organism NEC A37.81
due to
Bordetella
bronchiseptica A37.80
with pneumonia A37.81
parapertussis A37.10
with pneumonia A37.11
pertussis A37.00
with pneumonia A37.01
specified NEC A37.80
with pneumonia A37.81
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Related Index Terms
Source: Centers for Medicare & Medicaid Services, FY 2027 ICD-10-CM Index to Diseases and Injuries release files, effective October 1, 2026 through September 30, 2027.
