Table 1 Definition of diseases of the respiratory system used according to the ICD-9-CM and ICD-10-CM codes

ICD-9-CM codes (cases collected from 2012 to 2015)

 079.6

Respiratory syncytial virus

 466.0

Acute bronchitis

 466.1

Acute bronchiolitis

 466.11

Acute bronchiolitis due to respiratory syncytial virus

 480.1

Pneumonia due to respiratory syncytial virus

ICD-10-CM codes (cases collected from 2016 to 2018)

 B97.4

Respiratory syncytial virus as the cause of diseases classified elsewhere

 J12.1

Respiratory syncytial virus pneumonia

 J20.5

Acute bronchitis due to respiratory syncytial virus

 J20.9

Acute bronchitis, unspecified

 J21.0

Acute bronchiolitis due to respiratory syncytial virus

 J21.9

Acute bronchiolitis, unspecified