Presented by Allergy/Intolerance/Adverse Reaction Concept Model HL7 Patient Care WG Discussion Pan Canadian Individual Care Standards Collaborative Working Group (SCWG) No. 2 André Boudreau, SCWG 2 Chair

Page 2 Preliminary Concept Diagram (Partial) Adverse sensitivity to agent / substance* AllergyIntolerance IS A Event Adverse Event IS A Adverse Medical Event IS A Patient Condition IS A Adverse Reaction Adverse Food Reaction Adverse Reaction to Environmental Agents Adverse (Drug) Reaction to Health Product Agent / Substance AND CAN CAUSE CAN RESULT IN / IS EXPECTED TO RESULT IN IS A Drug/Health product Food Chemical Product Biological Product Plants Animals Pollens Plastic Etc. IS A Allergen IS A Manifestations has Severity has Updated HL7 PCWG * Synonyms could be: allergy - intolerance, uncategorized intolerance (current PCS) Criticality has Contraindications has Criticality? has

Page 3 Notes and Issues See meeting minutes from Elaine  Hypersensitivity: associated to Allergy  Sensitivity can be positive or negative. Keep ‘Adverse’  Agent: use Substance  Symptoms: use ‘Manifestations’ Criticality:  The result of the clinical assessment and judgment, tied to condition  Should it be tied to AR? Can have an AR without a predisposition/ condition Is Adverse Reaction an Event? Is Adverse Effects the same as Adverse Reaction? Is Adverse Event the same as Adverse Effects, or is the Event the cause of the Effects