Toxic effect of venom of bees, assault, subsequent encounter

This code signifies a patient presenting for follow-up care or ongoing treatment related to a bee venom exposure that was intentionally inflicted by another person. The patient is experiencing adverse systemic or localized effects from the venom, and this encounter is not the initial treatment for the injury.

Apply this code for subsequent visits where a patient is being managed for complications, allergic reactions, or other sequelae stemming from an assault involving bee stings. This includes scenarios like wound care for sting sites, management of delayed allergic reactions, or monitoring for systemic toxicity after the initial emergency treatment.

• Requires an external cause code (X90-Y09) to fully describe the assault.
• Do not use for initial treatment of the bee sting; that would require a code with an "A" seventh character.
• Ensure documentation clearly indicates the encounter is for follow-up care and the intentional nature of the exposure.