Whooping cough (A37)

The ICD-10 code A37 covers whooping cough, a contagious respiratory infection also known as pertussis. These codes specify the causative Bordetella species and whether pneumonia is present.

The section includes codes for whooping cough due to Bordetella pertussis (A37.0 series), Bordetella parapertussis (A37.1 series), other Bordetella species (A37.8 series), and unspecified species (A37.9 series). Subcategories distinguish cases with or without pneumonia ; for example, A37.00 is whooping cough caused by Bordetella pertussis without pneumonia, also referred to as acute bacterial bronchitis or healthcare-associated pertussis. Codes with pneumonia, like A37.01, capture cases complicated by lung infection. This section helps coders accurately assign diagnosis codes for pertussis and related infections, guiding treatment and reporting. Understanding synonyms like “pertussis” or “infection caused by Bordetella” assists healthcare professionals in mapping clinical terms to the proper ICD-10 code for whooping cough diagnoses.

Clinical Terms

The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.

Bordetella pertussis

A species of gram-negative, aerobic bacteria that is the causative agent of WHOOPING COUGH. Its cells are minute coccobacilli that are surrounded by a slime sheath.

Whooping Cough

A respiratory infection caused by BORDETELLA PERTUSSIS and characterized by paroxysmal coughing ending in a prolonged crowing intake of breath.