Non-Billable / Non-Specific Code
ICD-10-CM J66 is the diagnosis code for Airway disease due to specific organic dust. This code falls under the section "Lung diseases due to external agents" within Chapter 10 â Diseases of the respiratory system (J00-J99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions are not included in J66. If the patient has both, code each condition separately:
Understanding where J66 sits in the ICD-10-CM classification helps ensure proper coding:
No, J66 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
J66 is the ICD-10-CM diagnosis code for "Airway disease due to specific organic dust". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
J66 is located in Section J60-J70 â "Lung diseases due to external agents" within Chapter 10 of the ICD-10-CM Tabular List.
J66 has 4 sub-code(s) that provide more specific detail: J66.0, J66.1, J66.2, J66.8.
Use J66 when the patients documented diagnosis matches "Airway disease due to specific organic dust" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Airway disease due to specific organic dust is J66.
No, J66 is non-billable. Use a more specific sub-code for primary diagnosis billing.
J66 is in Chapter 10 of the ICD-10-CM Tabular List.
Yes, J66 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.