J61 vs J66
J61 (Pneumoconiosis due to asbestos and other mineral fibers) compared with J66 (Airway disease due to specific organic dust), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. J66 carries an Excludes2 note covering J61: “asbestosis (J61)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| J61Pneumoconiosis due to asbestos and other mineral fibers | J66Airway disease due to specific organic dust | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | J00-J99 — Diseases of the Respiratory System (J00-J99) | J00-J99 — Diseases of the Respiratory System (J00-J99) |
| Definition | Pneumoconiosis due to asbestos and other mineral fibers is a billable ICD-10-CM diagnosis code (J61). | Airway disease due to specific organic dust is a non-billable ICD-10-CM category code (J66). |
| Includes | Asbestosis | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources