Try for free

J66 ICD-10-CM Code: Airway disease due to specific organic dust

J66 isn’t billable on its own. Choose one of the 4 billable codes beneath it, the one the documentation supports.

Official description

J66

Airway disease due to specific organic dust

ICD-10-CM diagnosis code · United States clinical modification

Billable codes under J66

J66 can’t be reported on its own. Choose the code below that matches what the note documents.

Where J66 sits

  1. 1

    Chapter 10

    Diseases of the respiratory system (J00-J99)

  2. 2

    Section

    Lung diseases due to external agents (J60-J70)

  3. 3

    Category J66

    Airway disease due to specific organic dust

  4. 4

    Code J66

    Airway disease due to specific organic dust

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)

Source and release

Data release
U.S. ICD-10-CM · FY 2027
Effective date
Oct 1, 2026

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 source

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 4 billable codes beneath it 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).