Poisn by anticoag antag, vit K and oth coag, assault, init

This code signifies a poisoning event resulting from the intentional administration of anticoagulant antagonists, vitamin K, or other coagulant agents with the intent to harm. The patient is in the initial phase of treatment for this acute poisoning.

Apply this code when a patient presents with symptoms of poisoning due to an overdose or inappropriate administration of substances like vitamin K or prothrombin complex concentrates, and the circumstances indicate an assault. This is used for the initial encounter where the patient is actively receiving diagnostic workup and treatment for the acute effects.

• Always assign an additional code for the specific adverse effect or manifestation of the poisoning.
• Ensure documentation clearly supports the "assault" intent and the "initial encounter" for treatment.
• Distinguish from accidental poisoning (T45.7X1-) or intentional self-harm (T45.7X2-).