Poisoning by heroin, accidental (unintentional), init encntr

This code signifies an accidental overdose or adverse reaction to heroin, occurring when the substance is taken unintentionally or in an incorrect dosage. It indicates the patient is in the acute phase of treatment for the poisoning event.

Apply this code for patients presenting to the emergency department or admitted for initial management of heroin poisoning due to an accidental ingestion, injection, or inhalation. This includes cases where the patient mistakenly took heroin or took a higher dose than intended without suicidal intent.

• Ensure documentation clearly states the poisoning was accidental or unintentional.
• Confirm this is the initial encounter for the poisoning event; subsequent care would use a different seventh character.
• Always sequence this code first when it represents the primary reason for the encounter.