J18 vs J70.2
J18 (Pneumonia, unspecified organism) compared with J70.2 (Acute drug-induced interstitial lung disorders), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. J18 carries an Excludes1 note covering J70.2: “drug-induced interstitial lung disorder (J70.2-J70.4)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Yes, when both are documented. J18 carries an Excludes2 note covering J70.2: “pneumonitis due to external agents (J67-J70)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| J18Pneumonia, unspecified organism | J70.2Acute drug-induced interstitial lung disorders | |
|---|---|---|
| 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 | Pneumonia, unspecified organism is a non-billable ICD-10-CM category code (J18). | Acute drug-induced interstitial lung disorders is a billable ICD-10-CM diagnosis code (J70.2). |
| Use additional code | code, if applicable, to identify resistance to antimicrobial drugs (Z16.-) | code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5) |
| Code first | , if applicable, associated influenza (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