ICD-10 Code J66.8 – Airway disease due to other specific organic dusts (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J66.8 – Airway disease due to other specific organic dusts
What it is
J66.8 identifies airway disease caused by exposure to specific organic dusts other than those named in more specific codes. Use it when documentation links a respiratory airway condition to an occupational or environmental organic dust exposure.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings may include cough, wheeze, shortness of breath, or other airway irritation after dust exposure, but you should code only what is supported in the record.
When to use this code
Use J66.8 when the clinician documents airway disease attributed to a specific organic dust exposure and no more specific J66 code applies. It fits occupational or environmental cases where the source is identified as an organic dust, such as a workplace exposure. Check documentation for the exact exposure and diagnosis wording.
Do not use for
Do not use this code for airway disease from nonorganic dusts, fumes, or gases, or when a more specific ICD-10 code describes the exposure. If the record does not clearly connect the airway disease to a specific organic dust, check documentation.
Coding tip
Match the code to both the airway diagnosis and the documented organic dust exposure, and confirm whether a more specific code is available before assigning J66.8.