J12 vs J84.9
J12 (Viral pneumonia, not elsewhere classified) compared with J84.9 (Interstitial pulmonary disease, unspecified), 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. J12 carries an Excludes2 note covering J84.9: “interstitial pneumonia NOS (J84.9)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| J12Viral pneumonia, not elsewhere classified | J84.9Interstitial pulmonary disease, unspecified | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | J00-J99 — Diseases of the Respiratory System (J00-J99) | J00-J99 — Diseases of the Respiratory System (J00-J99) |
| Definition | Viral pneumonia, not elsewhere classified is a non-billable ICD-10-CM category code (J12). | Interstitial pulmonary disease, unspecified is a billable ICD-10-CM diagnosis code (J84.9). |
| Includes | bronchopneumonia due to viruses other than influenza viruses | Interstitial pneumonia NOS |
| Use additional code | code, if applicable, to identify resistance to antimicrobial drugs (Z16.-) | — |
| Code first | associated influenza, if applicable (J09.X1, J10.0-, J11.0-) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources