Poisoning by dental drugs, topically applied, undet, init

This code signifies an adverse reaction or overdose from a dental drug applied topically, where the intent (accidental, intentional self-harm, assault) cannot be determined. The patient is presenting for the initial treatment of this poisoning event.

Use this code when a patient experiences toxic effects from a dental medication, such as a topical anesthetic or fluoride varnish, applied to the oral cavity, and the provider cannot ascertain if the exposure was accidental or intentional. This code is appropriate for the first encounter for treatment of this specific poisoning.

• Always assign an additional code for the specific dental drug involved, if known (e.g., T36-T50 series).
• Do not use this code if the intent of the poisoning is clearly accidental (T49.7X1-), intentional self-harm (T49.7X2-), or assault (T49.7X3-).
• The 7th character 'A' indicates an initial encounter for active treatment of the poisoning.