J70.8Respiratory conditions due to other specified external agents

J70.8 is the ICD-10-CM diagnosis code for respiratory conditions due to other specified external agents. It belongs to category J70 (respiratory conditions due to other external agents), block J60-J70 (lung diseases due to external agents) and chapter 10 (diseases of the respiratory system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within J70, choose J70.8 (Respiratory conditions due to other specified external agents) only when documentation doesn't support a more specific option: acute pulmonary manifestations due to radiation (J70.0), chronic and other pulmonary manifestations due to radiation (J70.1), acute drug-induced interstitial lung disorders (J70.2), chronic drug-induced interstitial lung disorders (J70.3), drug-induced interstitial lung disorders, unspecified (J70.4), respiratory conditions due to smoke inhalation (J70.5) and respiratory conditions due to unspecified external agent (J70.9).

Code first: (T51-T65) to identify the external agent.

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 205 (Other Respiratory System Diagnoses with MCC, relative weight 1.8244) and DRG 206 (Other Respiratory System Diagnoses without MCC, relative weight 0.9257), in MDC 04 (Diseases and Disorders of the Respiratory System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 508.8 (respiratory conditions due to other specified external agents).