Accidental poisoning by barbiturates

This code signifies an unintentional overdose or adverse reaction to barbiturate medications due to accidental ingestion, incorrect dosage, or unintended exposure. It encompasses situations where the patient did not intend to harm themselves but experienced toxic effects from these central nervous system depressants.

Apply this code when documentation clearly states accidental poisoning by barbiturates, such as phenobarbital, secobarbital, or butalbital. This includes scenarios like a child ingesting medication left unattended, an adult mistakenly taking a double dose, or an adverse reaction from an unintended interaction. Documentation should specify "accidental" and identify the substance as a barbiturate.

• Always sequence this code as the primary diagnosis when it is the reason for the encounter.
• Do not use this code for intentional self-harm (suicide attempt) or therapeutic adverse effects without poisoning.
• Ensure the documentation differentiates between accidental poisoning and drug abuse or dependence.