Poisn by anticoag antag, vitamin K and oth coag, acc, init

This code signifies an accidental overdose or adverse reaction to medications that counteract anticoagulants, such as vitamin K or other procoagulant agents. It specifically points to an unintentional exposure that has resulted in a toxic effect on the patient.

Apply this code when a patient presents with symptoms of poisoning after inadvertently taking too much vitamin K or another coagulant, or when they are accidentally administered an excessive dose. This is for the initial visit where the poisoning is first evaluated and treated.

• Ensure the documentation clearly states the poisoning was accidental and not intentional self-harm or assault.
• This code is for the initial encounter; subsequent care for the same poisoning would require a different seventh character.
• Always code the specific substance (e.g., vitamin K) if known, in addition to this poisoning code.