ICD-10 Code J68.2 – Upper respiratory inflammation due to chemicals, gases, fumes and vapors, not elsewhere classified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J68.2 – Upper respiratory inflammation due to chemicals, gases, fumes and vapors, not elsewhere classified
What it is
J68.2 identifies inflammation of the upper airway caused by exposure to irritant chemicals, gases, fumes, or vapors. Use it when the documentation links the respiratory irritation directly to a specific inhaled exposure.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings include nasal, throat, or laryngeal irritation, cough, hoarseness, and discomfort after inhalation exposure.
When to use this code
Use J68.2 when the record states upper respiratory inflammation from chemical or inhaled irritant exposure and no more specific diagnosis is documented. It may apply after workplace, household, or environmental exposure. Confirm the note supports a causal relationship and does not describe a lower respiratory condition instead.
Do not use for
Do not use this code for asthma, bronchitis, or pneumonia unless the provider documents upper respiratory inflammation as the diagnosis. Check documentation if the exposure is not clearly linked.
Coding tip
Code the documented exposure-related diagnosis only when the record connects the irritant to the upper airway.