ICD-10 Code J68.9 – Unspecified respiratory condition due to chemicals, gases, fumes and vapors (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J68.9 – Unspecified respiratory condition due to chemicals, gases, fumes and vapors
What it is
This code identifies a respiratory condition caused by exposure to chemicals, gases, fumes, or vapors when the specific lung or airway disorder is not named. Use it when documentation links the respiratory problem to an inhaled irritant but stays nonspecific.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings include cough, wheezing, shortness of breath, throat irritation, or other airway symptoms after exposure to an inhaled chemical agent.
When to use this code
Use J68.9 when the provider documents a respiratory condition due to chemical, gas, fume, or vapor exposure without a more specific diagnosis. It may apply after workplace, household, or environmental exposure when the exact disorder is not identified. Check documentation for the causal agent and the respiratory manifestation.
Do not use for
Do not use this code if the record identifies a more specific respiratory diagnosis, such as chemical pneumonitis or acute bronchitis. Also avoid it when the exposure is mentioned but no respiratory condition is documented.
Coding tip
Code the documented respiratory effect and the exposure cause only when both are clearly linked in the record.