J70.9 Respiratory conditions due to unspecified external agent

Billable ICD-10-CM code, FY2026.

Code first

• (T51-T65) to identify the external agent

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)

• 508.9 Respiratory conditions due to unspecified external agent

Code annotations containing back-references to J70.9

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 J70.9

• Disease, diseased › respiratory (tract) › acute or subacute NOS › due to › external agent
• Disease, diseased › respiratory (tract) › chronic NOS › due to › external agent
• Disease, diseased › respiratory (tract) › due to › external agent
• Edema, edematous (infectious) (pitting) (toxic) › lung › chronic › due to › external agent
• Edema, edematous (infectious) (pitting) (toxic) › lung › due to › external agent

Nearby codes

• J70.2 Acute drug-induced interstitial lung disorders
• J70.3 Chronic drug-induced interstitial lung disorders
• J70.4 Drug-induced interstitial lung disorders, unspecified
• 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 (this code)