2024 ICD-10-CM Diagnosis Code A37.91

Whooping cough, unspecified species with pneumonia

• A37.91 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• The 2024 edition of ICD-10-CM A37.91 became effective on October 1, 2023.
• This is the American ICD-10-CM version of A37.91 – other international versions of ICD-10 A37.91 may differ.

The following code(s) above A37.91 contain annotation back-references

 that may be applicable to A37.91:

• A00-B99  Certain infectious and parasitic diseases

Approximate Synonyms

• Pneumonia in pertussis
• Pneumonia in whooping cough

ICD-10-CM A37.91 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

• 202 Bronchitis and asthma with cc/mcc
• 203 Bronchitis and asthma without cc/mcc

Convert A37.91 to ICD-9-CMCode History

• 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
• 2017 (effective 10/1/2016): No change
• 2018 (effective 10/1/2017): No change
• 2019 (effective 10/1/2018): No change
• 2020 (effective 10/1/2019): No change
• 2021 (effective 10/1/2020): No change
• 2022 (effective 10/1/2021): No change
• 2023 (effective 10/1/2022): No change
• 2024 (effective 10/1/2023): No change

Diagnosis Index entries containing back-references to A37.91:

• Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) J18.9
  • in (due to)
    • whooping cough A37.91
• Whooping coughA37.90
  • with pneumonia A37.91