Poisoning by enzymes, not elsewhere classified

This code signifies an adverse health event resulting from exposure to or ingestion of enzymes not specifically categorized elsewhere. This includes toxic effects from therapeutic enzyme preparations, industrial enzyme exposure, or accidental ingestion of enzyme-containing products. The poisoning can manifest with various symptoms depending on the specific enzyme and route of exposure.

Use this code when documentation clearly indicates a patient's illness or injury is due to poisoning by an enzyme, and a more specific ICD-9-CM code for that particular enzyme is not available. This typically applies to cases involving systemic toxic reactions, allergic responses, or organ damage directly attributable to enzyme exposure. Supporting documentation should detail the enzyme involved, the nature of the exposure, and the resulting clinical manifestations.

• Always search for a more specific enzyme poisoning code first before resorting to this "not elsewhere classified" option.
• Requires an external cause of injury code (E-code) to specify the circumstances of the poisoning (e.g., accidental, intentional, therapeutic misadventure).
• Do not use for adverse effects of enzymes used as diagnostic agents or for allergic reactions to enzymes where the primary intent was therapeutic and the reaction is a known side effect (unless it constitutes a poisoning).