ICD-10 Code J98.0 – Diseases of bronchus, not elsewhere classified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J98.0 – Diseases of bronchus, not elsewhere classified
What it is
J98.0 identifies bronchial disorders that do not fit a more specific diagnosis. Use it when documentation states a disease of the bronchus and no narrower code is available.
Clinical signs
Clinical features vary; refer to documentation. Patients may have cough, wheeze, or bronchial obstruction, but the record should support a bronchial disorder rather than a lung or tracheal condition.
When to use this code
Use this code when the provider documents a nonspecific bronchial disease and no more specific ICD-10-CM code applies. It is appropriate for charted bronchial pathology that remains classified only as a disease of the bronchus. Check documentation if the note instead describes asthma, bronchitis, or another defined respiratory condition.
Do not use for
Do not use J98.0 when the diagnosis is better described by a specific bronchitis, asthma, or lung code. Avoid it if the record names a tracheal, pulmonary, or infectious process instead of a bronchial disorder.
Coding tip
Code J98.0 only after confirming the provider did not document a more specific respiratory diagnosis.