504
ICD-9-CMThis code signifies lung disease resulting from the inhalation of various types of dust, excluding those specifically classified elsewhere (e.g., silica, asbestos, coal). It encompasses a range of non-specific pneumoconioses or other lung conditions caused by occupational or environmental exposure to particulate matter. The condition often manifests as chronic respiratory symptoms and pulmonary dysfunction.
Use this code when documentation clearly indicates a diagnosis of pneumonopathy or lung disease directly attributed to the inhalation of dusts not otherwise specified. This typically applies to exposures to organic dusts, metal dusts (other than beryllium), or other inorganic dusts where a more specific dust-related code is not applicable. Supporting documentation should include a history of exposure and clinical findings consistent with dust-induced lung pathology.
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