J40

Billable

ChapterJ00–J99

Rankcategory

Official Description

Bronchitis, not specified as acute or chronic

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Billable/specific code (valid for reimbursement).
•Chapter 10: Diseases of the Respiratory System (J00-J99).

CH10 Parent Instructions

Excludes2(Not included here)

certain conditions originating in the perinatal period (P04-P96)
certain infectious and parasitic diseases (A00-B99)
complications of pregnancy, childbirth and the puerperium (O00-O9A)
congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
endocrine, nutritional and metabolic diseases (E00-E88)
injury, poisoning and certain other consequences of external causes (S00-T88)
neoplasms (C00-D49)
smoke inhalation (T59.81-)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Use Additional Code

code, where applicable, 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)

J40-J4A Parent Instructions

Excludes1(Not coded here)

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

Excludes2(Not included here)

cystic fibrosis (E84.-)

Instructional Notes

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)

Clinical Hierarchy

CH10Diseases of the respiratory system (J00-J99)

J40-J4AChronic lower respiratory diseases (J40-J4A)

J40Bronchitis, not specified as acute or chronic

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to J40:

blockJ40-J4A

Chronic lower respiratory diseases (J40-J4A)

View context instructions

chapterCH10

Diseases of the respiratory system (J00-J99)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to J40. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

4 raw paths

Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous)3 unique routes

Direct index entry→J40

catarrhal (l5 years of age and above)→J40

with

tracheitis (l5 years of age and above)→J40

Tracheitis (catarrhal) (infantile) (membranous) (plastic) (septal) (suppurative) (viral)1 unique routes

with

bronchitis (15 years of age and above)→J40