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

This code signifies an accidental or intentional poisoning due to substances that counteract anticoagulants, such as vitamin K or other coagulants. It indicates that the specific intent (accidental vs. intentional self-harm) is not yet determined. The "initial encounter" designation means the patient is actively receiving treatment for the acute effects of the poisoning.

Apply this code when a patient presents with symptoms of poisoning from agents like vitamin K, prothrombin complex concentrate, or other coagulants, and the healthcare provider has not yet established whether the exposure was accidental or an act of self-harm. This is appropriate for the initial visit where the patient is being evaluated and treated for the acute toxic effects.

• Ensure the documentation clearly indicates the substance involved is an anticoagulant antagonist or coagulant.
• Only use the "undetermined" intent when the medical record does not specify accidental or intentional self-harm.
• Verify this is the patient's first encounter for this specific poisoning episode. Subsequent care would use a different encounter character.