Poisn by mult unsp drug/meds/biol subst, assault, sequela

This code signifies a long-term consequence or complication resulting from a poisoning event involving multiple, unspecified substances, where the poisoning was intentionally inflicted by another person. It indicates that the acute phase of the poisoning has passed, but the patient continues to experience related health issues.

Use this code when documenting follow-up care for a patient who previously experienced a poisoning by multiple unknown drugs or substances, where the intent was assault, and they are now presenting with ongoing health problems directly attributable to that past event. This applies to situations where the specific substances involved were never identified.

• Always sequence this code after the code(s) for the specific sequela being treated.
• Ensure documentation clearly links the current condition to the past assaultive poisoning.
• Do not use this code for acute poisoning events; it is specifically for sequelae.