ADVERSE REACTIONS/ALLERGIES (1)    HEALTH SUMMARY COMPONENT (142.1)

This component provides patient allergy/adverse reaction information from
the Allergy Tracking System. It provides a list of all known food, drug
and environmental allergies or adverse reactions (e.g., hay fever). Data
element included are type of reaction, mechanism of reaction, causative
agent, verification status, signs/symptoms for the reaction, the
originator, and comments.