Billable / Specific Code
ICD-10-CM J40 is the diagnosis code for Bronchitis, not specified as acute or chronic. This code falls under the section "Chronic lower respiratory diseases" within Chapter 10 — Diseases of the respiratory system (J00-J99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as J40. They are mutually exclusive:
Understanding where J40 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, J40 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
J40 is the ICD-10-CM diagnosis code for "Bronchitis, not specified as acute or chronic". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
J40 is located in Section J40-J4A — "Chronic lower respiratory diseases" within Chapter 10 of the ICD-10-CM Tabular List.
Use J40 when the patients documented diagnosis matches "Bronchitis, not specified as acute or chronic" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Bronchitis, not specified as acute or chronic is J40.
Yes, J40 can be used as a primary diagnosis code since it is billable and specific.
J40 is in Chapter 10 of the ICD-10-CM Tabular List.
Type 1 Excludes for J40 include: acute bronchitis (J20.-); allergic bronchitis NOS (J45.909); asthmatic bronchitis NOS (J45.9-) and more.
Yes, J40 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.