ICD-9-CM Codes ICD-9-PCS Codes

491.9 - Unspecified chronic bronchitis

GEM Conversion to ICD-10 CM

J42

Fs: 00000 – Unspecified chronic bronchitis

Sibling Codes

491.0

Simple chronic bronchitis

491.1

Mucopurulent chronic bronchitis

491.8

Other chronic bronchitis

491.9

Unspecified chronic bronchitis

Parent Sibling Codes

490

Bronchitis, not specified as acute or chronic

496

Chronic airway obstruction, not elsewhere classified