2026 ICD-10-CM Diagnosis Code J66Airway disease due to specific organic dust
J66 is a non-billable ICD-10-CM category code for airway disease due to specific organic dust, so it cannot be submitted on claims. Use a more specific code from this category instead, such as J66.0, J66.1, J66.2, and J66.8.
Code Identity
Code Classification
Specific Coding for Airway disease due to specific organic dustOverview
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Type 2 Excludes
- allergic alveolitis J67
- asbestosis J61
- bagassosis J67.1
- farmer's lung J67.0
- hypersensitivity pneumonitis due to organic dust J67
- reactive airways dysfunction syndrome J68.3
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Patient EducationClinical
Interstitial Lung Diseases
Interstitial lung disease is the name for a large group of diseases that inflame or scar the lungs. The inflammation and scarring make it hard to get enough oxygen. The scarring is called pulmonary fibrosis.
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Code HistoryHistory
Questions About J66Overview
Is J66 (Airway disease due to specific organic dust) a billable code?
No. This is a category header that groups the codes for airway disease due to specific organic dust, and headers cannot be submitted on claims. Claims for airway disease due to specific organic dust need a more specific code from this category, such as J66.0, J66.1, and J66.2.
