Poisoning by heroin, accidental (unintentional), sequela

This code signifies a long-term health condition or complication resulting from an accidental overdose or poisoning by heroin. It indicates that the acute phase of the poisoning has passed, and the patient is now experiencing residual effects directly attributable to that event. These sequelae can manifest in various organ systems, reflecting the systemic impact of opioid toxicity.

Apply this code when documenting chronic conditions, permanent disabilities, or persistent health problems that are a direct consequence of an unintentional heroin poisoning that occurred in the past. Examples include anoxic brain injury, chronic organ damage, or persistent neurological deficits clearly linked to the prior poisoning event. Do not use for the initial acute poisoning encounter.

• Always sequence this code after the code for the specific sequela (e.g., G93.1 for anoxic brain damage).
• Ensure documentation clearly links the current condition to a past accidental heroin poisoning.
• Distinguish from subsequent encounters for acute poisoning or ongoing substance use disorder without specific sequelae.