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J40

Billable

Bronchitis, not specified as acute or chronic

J40 is the ICD-10-CM code for Bronchitis, not specified as acute or chronic. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
J00-J99
Edition
FY2026

J00-J99 Diseases of the respiratory system

What this means — in plain language

MedlinePlus · NIH

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. The most common problem with the bronchi is bronchitis, an inflammation of the tubes. It can be acute or chronic . Other problems include: Bronchiectasis - a condition in which damage to the airways causes them…

Read more about Bronchial Disorders at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Includes

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

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)

Medications indicated for this condition

FDA labeling

Drugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.

Frequently asked questions

What is ICD-10 code J40?
J40 is the ICD-10-CM code for "Bronchitis, not specified as acute or chronic". It falls under J00-J99 Diseases of the respiratory system.
Is J40 a billable code?
Yes — J40 is a billable, specific ICD-10-CM code valid for reimbursement.
What is excluded from 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).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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