Toxic effect of venom of ants, undetermined, init encntr

This code signifies a harmful reaction to ant venom where the intent (accidental vs. intentional self-harm) is not documented or cannot be determined. It specifically applies to the initial presentation of symptoms following the exposure. The toxic effect can range from localized skin reactions to systemic anaphylaxis.

Use this code for patients presenting with symptoms of ant envenomation when the medical record does not specify whether the exposure was accidental or intentional. This is appropriate for the initial visit or encounter where the toxic effect is being evaluated and treated. Subsequent encounters for the same event would utilize a different seventh character.

• Ensure the documentation clearly indicates "undetermined" intent for the ant venom exposure.
• Confirm this is the patient's first encounter for this specific toxic effect.
• Always code any associated signs and symptoms or specific toxic effects (e.g., anaphylactic shock) in addition to this code.