ICD-10 Code J70.8 – Respiratory conditions due to other specified external agents (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J70.8 – Respiratory conditions due to other specified external agents
What it is
J70.8 identifies lung or airway problems caused by an external agent that is not classified elsewhere. Use it when documentation links the respiratory condition to a specific noninfectious exposure or agent.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings include cough, shortness of breath, wheezing, or other respiratory irritation after exposure to the suspected agent.
When to use this code
Use J70.8 when the provider documents a respiratory condition due to an external agent and no more specific ICD-10-CM code applies. It may fit cases tied to unusual chemical, environmental, or medication-related exposure. If the agent or diagnosis is unclear, check documentation before coding.
Do not use for
Do not use this code for routine asthma, pneumonia, or chronic lung disease unless the record clearly links them to an external agent. Avoid it when a more specific code describes the condition.
Coding tip
Always capture the exact agent and the provider’s causal wording, because that documentation determines whether J70.8 is appropriate.