Poisn by multiple unsp drug/meds/biol subst, assault, subs

This code signifies a patient presenting for follow-up care related to an intentional overdose or harmful exposure to an unknown combination of drugs, medications, or biological substances. The poisoning was inflicted by another party with malicious intent. The patient is no longer in the acute phase of treatment.

Apply this code when documenting subsequent encounters for patients recovering from an assault involving multiple, unspecified substances. This includes visits for ongoing monitoring, management of residual effects, or psychological support after the initial acute care for the poisoning has concluded.

• Ensure documentation clearly states the poisoning was an assault and that the specific substances involved are not identified.
• This "D" encounter code is appropriate for follow-up care after the initial treatment of the poisoning.
• Always sequence this code after any codes for specific manifestations or complications of the poisoning.