Poisoning by antidotes and chelating agents, assault, subs

This code signifies a poisoning event resulting from the intentional administration of an antidote or chelating agent by another person with harmful intent. The patient is receiving follow-up care for the sequelae of this poisoning, indicating that the initial acute treatment has concluded.

Use this code when documenting subsequent encounters for a patient who was intentionally poisoned by an antidote or chelating agent by another individual. This applies to ongoing management of symptoms, complications, or long-term effects stemming from the assault.

• Ensure documentation clearly states the poisoning was an assault and that this is a subsequent encounter.
• Always code with an external cause code (X-code) to specify the perpetrator and circumstances of the assault.
• Do not use for initial acute care; reserve for follow-up visits after the initial treatment phase.