J70.4 Drug-induced interstitial lung disorders, unspecified

Billable ICD-10-CM code, FY2026.

Excludes1 (never code together)

• interstitial pneumonia NOS (J84.9)
• lymphoid interstitial pneumonia (J84.2)

Use additional code

• code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

Risk adjustment (HCC)

• CMS-HCC V22: HCC 112 — Fibrosis of Lung and Other Chronic Lung Disorders
• ESRD V24: HCC 112

MS-DRG index

Defines the logic of DRG(s) 205-206 in MDC 04.

Approximate ICD-9-CM (GEMs)

• 508.8 Respiratory conditions due to other specified external agents (approximate)

Code annotations containing back-references to J70.4

Back-references to J70.4

• Type 1 Excludes: J18 Pneumonia, unspecified organism ("drug-induced interstitial lung disorder (J70.2-J70.4)")
• Type 2 Excludes: J82 Pulmonary eosinophilia, not elsewhere classified ("pulmonary eosinophilia due to drugs (J70.2-J70.4)")
• Type 1 Excludes: J84 Other interstitial pulmonary diseases ("drug-induced interstitial lung disorders (J70.2-J70.4)")
• Use Additional: U07.0 Vaping-related disorder ("drug-induced interstitial lung disorder (J70.4)")

Back-references to J70

• Type 2 Excludes: J18 Pneumonia, unspecified organism ("pneumonitis due to external agents (J67-J70)")
• Type 2 Excludes: J44.1 Chronic obstructive pulmonary disease with (acute) exacerbation ("lung diseases due to external agents (J60-J70)")
• Type 2 Excludes: J44.9 Chronic obstructive pulmonary disease, unspecified ("lung diseases due to external agents (J60-J70)")
• Type 2 Excludes: J45.909 Unspecified asthma, uncomplicated ("lung diseases due to external agents (J60-J70)")
• Type 1 Excludes: J81 Pulmonary edema ("pulmonary edema due to external agents (J60-J70)")
• Type 2 Excludes: J84 Other interstitial pulmonary diseases ("lung diseases due to external agents (J60-J70)")
• Code First: J84.170 Interstitial lung disease with progressive fibrotic phenotype in diseases classified elsewhere ("lung diseases due to external agents (J60-J70)")

Diagnosis Index entries for J70.4

• Disorder (of) › lung, interstitial, drug-induced

Nearby codes

• J70 Respiratory conditions due to other external agents
• J70.0 Acute pulmonary manifestations due to radiation
• J70.1 Chronic and other pulmonary manifestations due to radiation
• J70.2 Acute drug-induced interstitial lung disorders
• J70.3 Chronic drug-induced interstitial lung disorders
• J70.4 Drug-induced interstitial lung disorders, unspecified (this code)
• J70.5 Respiratory conditions due to smoke inhalation
• J70.8 Respiratory conditions due to other specified external agents
• J70.9 Respiratory conditions due to unspecified external agent