J66 ICD-10-CM Code: Airway disease due to specific organic dust
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
J66Airway disease due to specific organic dust
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where J66 sits
- 1
Chapter 10
Diseases of the respiratory system (J00-J99)
- 2
Section
Lung diseases due to external agents (J60-J70)
- 3
Category J66
Airway disease due to specific organic dust
- 4
Code J66
Airway disease due to specific organic dust
More specific choices
Codes under J66
J66 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for J66.
Code first
No “code first” instruction is listed for J66.
Use additional code
No “use additional code” instruction is listed for J66.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for J66.
Excludes2
Conditions not included here that may be reported separately when present.
- 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)
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code J66 mean?
J66 is the FY 2027 U.S. ICD-10-CM code for “Airway disease due to specific organic dust.”
Is J66 a billable or specific ICD-10-CM code?
No. J66 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is J66 located in ICD-10-CM?
J66 is listed in Chapter 10, Diseases of the respiratory system (J00-J99), within Lung diseases due to external agents (J60-J70) (J60–J70), under category J66, Airway disease due to specific organic dust.
What coding notes are listed for J66?
No inclusion terms are listed for J66 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. Excludes2 notes: 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).
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