Toxic effect of venom of bees, accidental, subs

This code signifies an adverse systemic reaction resulting from a bee sting, specifically when the encounter is accidental and the patient is presenting for follow-up care after the initial treatment. It indicates that the venom's toxic effects are being addressed in a subsequent visit, rather than the initial presentation.

Apply this code for patients returning to the clinic or hospital for ongoing management of symptoms like severe localized reactions, anaphylaxis, or other systemic toxic effects that developed after an unintentional bee sting. This is appropriate for follow-up appointments where the initial treatment has already been rendered.

• Ensure the "D" seventh character is appropriate for a subsequent encounter, indicating ongoing care.
• Always code the specific type of insect venom if known, as this code is specific to bees.
• Do not use this code for the initial encounter; a different seventh character would be required.