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J66

Non-billable

Airway disease due to specific organic dust

J66 is the ICD-10-CM code for Airway disease due to specific organic dust. It is a non-billable category code — use a more specific child code such as J66.0 for billing.

Status
Header (non-billable)
Chapter
J00-J99
Subcodes
4
Edition
FY2026

J00-J99 Diseases of the respiratory system

Excludes2 — not included here

  • •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?
J66 is the ICD-10-CM code for "Airway disease due to specific organic dust". It falls under J00-J99 Diseases of the respiratory system.
Is J66 a billable code?
No — J66 is a non-billable header code. Use a more specific child code (such as J66.0) for billing.
What are the subcodes of J66?
J66 has 4 more specific child codes, including J66.0, J66.1, J66.2.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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