The Immunization Evaluation resource communicates the results of an evaluation of an instance of the Immunization resource relative to a set of published recommendations. It is intended to communicate if the vaccine administration event was “valid” or “not valid” relative to the recommendations. Once all vaccine administration events in a patient’s record have been evaluated, it is then possible to generate a set of vaccination related recommendations, unique for the patient. These recommendations are communicated using the Immunization Recommendation resource.
As the Immunization Evaluation resource is focused on the evaluation of a single vaccine administration event, it does not include data regarding the overall patient status relative to the recommendations used in the evaluation. For example, a total of 3 doses of hepatitis B vaccine may be required for patient protection, but an instance of the Immunization Evaluation resource will be concerned with only one of the doses (although other instances of Immunization Evaluation should exist for the other doses). The Immunization Recommendation resource is used to convey the overall patient status (eg. a dose is due or the patient is complete) relative to the hepatitis B series.