Poisoning by other topical agents, assault, init encntr

This code signifies a patient presenting with adverse effects from the intentional administration of a topical agent, other than those specified elsewhere, with the intent to harm. The poisoning is a result of an assault, and this code is used for the initial phase of treatment for these effects.

Apply this code when documentation clearly indicates poisoning from a topical substance (e.g., certain creams, ointments, or transdermal patches not otherwise classified) that was maliciously applied to the patient. This code is appropriate for the emergency department visit or initial hospitalization for managing the acute toxic effects.

• Ensure the documentation explicitly states "assault" as the intent of the poisoning.
• Verify the topical agent is not more specifically classified by another T49 subcategory.
• Confirm this is the first encounter for this specific poisoning event.