ICD-10-CM J40: Bronchitis, not specified as acute or chronic

ICD-10-CM Diagnosis Code (2025)

Official Description for J40

Bronchitis, not specified as acute or chronic

Coding Notes & Guidelines for J40

Excludes1: Not Coded Here
  • acute bronchitis (J20.-)
  • allergic bronchitis NOS (J45.909-)
  • asthmatic bronchitis NOS (J45.9-)
  • bronchitis due to chemicals, gases, fumes and vapors (J68.0)
Use Additional Code
  • code to identify:
  • exposure to environmental tobacco smoke (Z77.22)
  • exposure to tobacco smoke in the perinatal period (P96.81)
  • history of tobacco dependence (Z87.891)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)
Inclusion Terms
  • Bronchitis NOS
  • Bronchitis with tracheitis NOS
  • Catarrhal bronchitis
  • Tracheobronchitis NOS

About ICD-10-CM Code J40 (Bronchitis)

ICD-10-CM code J40 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM J40 became effective on October 1, 2024.

This page provides detailed information about J40 - Bronchitis, not specified as acute or chronic. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Bronchitis related to not specified as acute or chronic.