J66Header code — not billable
Airway disease due to specific organic dust
- Chapter
- 10. Diseases of the respiratory system
- Category
- J66
- Effective date
- October 1, 2026
Related codes in category J66
Frequently asked questions
What is ICD-10 code J66?
J66 is an ICD-10-CM diagnosis code for Airway disease due to specific organic dust.
Is J66 a billable code?
No. J66 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is J66 in?
J66 falls under Chapter 10: Diseases of the respiratory system.
When did J66 become effective?
J66 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to J66?
J66 belongs to category J66, which includes 4 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.