J66
⚠ Non-billable
Airway disease due to specific organic dust
ICD-10-CM · FY2026 · Diseases of the Respiratory System
Code
J66
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Diseases of the Respiratory System
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Official coding notes
From CMS's ICD-10-CM Tabular List.
Excludes2 — not included here, but may code together
- 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)
Frequently asked questions
What is ICD-10 code J66?
ICD-10-CM code J66 represents Airway disease due to specific organic dust. It is a non-billable header code requiring a more specific subcategory in the Diseases of the Respiratory System chapter, effective October 1, 2025 – September 30, 2026.
Is J66 billable?
No. J66 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is J66 in?
J66 belongs to the Diseases of the Respiratory System chapter (J00–J99) of ICD-10-CM.
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