Toxic effect of ethanol, undetermined, subsequent encounter

This code signifies a harmful physiological response to ethanol (alcohol) exposure where the intent of the exposure (e.g., accidental, intentional self-harm, assault) cannot be determined. The "subsequent encounter" designation indicates that the patient is receiving follow-up care for the toxic effect, after the initial treatment of the acute phase. This could involve managing lingering symptoms, complications, or monitoring recovery.

Apply this code when a patient presents for ongoing care related to ethanol toxicity, and the documentation clearly states that the intent of the exposure is unknown. Examples include follow-up appointments for liver function monitoring after an acute ethanol overdose of undetermined intent, or managing persistent neurological symptoms weeks after such an event. It is crucial that the encounter is not the initial treatment for the acute poisoning.

• Ensure documentation explicitly states "undetermined intent" for the ethanol exposure.
• Verify that the encounter is for follow-up care, not the initial presentation or acute treatment.
• Do not use this code for alcohol abuse or dependence without evidence of an acute toxic effect.