All ICD10 Codes
J40BillableNon-CCNo HCC

Bronchitis, not specified as acute or chronic

Diseases of the Respiratory System·Chronic lower respiratory diseases (J40-J4B)·category·FY 2027

Bronchial Disorders: When you breathe in, the air travels down through your trachea (windpipe). It then goes through two tubes to your lungs. These tubes are your bronchi. Bronchial disorders can make it hard for you to breathe.

Read more about bronchial disorders on MedlinePlus · Source: MedlinePlus, National Library of Medicine

Also indexed as: Bronchitis; Bronchitis, with, tracheitis; Bronchitis, catarrhal; Tracheitis, with, bronchitis

Instructional notes

Includes: conditions that are coded here

  • Bronchitis NOS
  • Bronchitis with tracheitis NOS
  • Catarrhal bronchitis
  • Tracheobronchitis NOS

Excludes1: not coded here, use a different code

  • 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: add a second code for this, listed after this one

  • 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)

Also applies, from Chronic lower respiratory diseases (J40-J4B)

These notes sit on J40-J4B and apply to every code under it, including J40.

Excludes1: not coded here, use a different code

  • bronchitis due to chemicals, gases, fumes and vapors (J68.0)

Excludes2: not included here, code separately if applicable

  • cystic fibrosis (E84.-)

Where J40 sits

MS-DRGs

As the principal diagnosis, this code groups to these MS-DRGs (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

Codes whose notes mention J40

If you are coding one of these, its note tells you to add J40 too (Code Also, Use Additional Code), code it first (Code First), or not use it together (Excludes1).

  • J20 Excludes1: bronchitis NOS (J40)
  • J20 Excludes1: tracheobronchitis NOS (J40)
  • Z82.5 Includes: Conditions classifiable to J40-J47

ICD-9-CM equivalent

Legacy crosswalk from the CMS General Equivalence Mappings (last updated 2018).

  • 490 Bronchitis, not specified as acute or chronic
ICD-9 to ICD-10 converter