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J42 - Unspecified chronic bronchitis


The ICD 10 Code for Unspecified chronic bronchitis is listed as J42.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: J42
Description: Unspecified chronic bronchitis
  • Chronic bronchitis NOS
  • Chronic tracheitis
  • Chronic tracheobronchitis
  • Use additional code to identify:
  • exposure to environmental tobacco smoke (Z77.22)
  • exposure to tobacco smoke in the perinatal period (P96.81)
  • history of tobacco use (Z87.891)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)
  • Excludes1: chronic asthmatic bronchitis (J44.-)
  • chronic bronchitis with airways obstruction (J44.-)
  • chronic emphysematous bronchitis (J44.-)
  • chronic obstructive pulmonary disease NOS (J44.9)
  • simple and mucopurulent chronic bronchitis (J41.-)
Diagnostic Related Groups
(MS-DRG v30.0)
190 - Chronic Obstructive Pulmonary Disease W Mcc
191 - Chronic Obstructive Pulmonary Disease W Cc
192 - Chronic Obstructive Pulmonary Disease W/o Cc/mcc
Chapter Diseases of the respiratory system (J00-J99)
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code: 491.9 - Unspecified chronic bronchitis