module HealthDataStandards module Import module C32 class AllergyImporter < SectionImporter def initialize @entry_xpath = "//cda:observation[cda:templateId/@root='2.16.840.1.113883.10.20.1.18']" @code_xpath = "./cda:participant/cda:participantRole/cda:playingEntity/cda:code" @description_xpath = "./cda:code/cda:originalText/cda:reference[@value] | ./cda:text/cda:reference[@value]" @type_xpath = "./cda:code" @reaction_xpath = "./cda:entryRelationship[@typeCode='MFST']/cda:observation[cda:templateId/@root='2.16.840.1.113883.10.20.1.54']/cda:value" @severity_xpath = "./cda:entryRelationship[@typeCode='SUBJ']/cda:observation[cda:templateId/@root='2.16.840.1.113883.10.20.1.55']/cda:value" @status_xpath = "./cda:entryRelationship[@typeCode='REFR']/cda:observation[cda:templateId/@root='2.16.840.1.113883.10.20.1.39']/cda:value" @id_map = {} end # Traverses that HITSP C32 document passed in using XPath and creates an Array of Entry # objects based on what it finds # @param [Nokogiri::XML::Document] doc It is expected that the root node of this document # will have the "cda" namespace registered to "urn:hl7-org:v3" # measure definition # @return [Array] will be a list of Entry objects def create_entries(doc,id_map = {}) @id_map = id_map allergy_list = [] entry_elements = doc.xpath(@entry_xpath) entry_elements.each do |entry_element| allergy = Allergy.new extract_codes(entry_element, allergy) extract_dates(entry_element, allergy) extract_description(entry_element, allergy, id_map) extract_negation(entry_element, allergy) extract_status(entry_element, allergy) allergy.type = extract_code(entry_element, @type_xpath) allergy.reaction = extract_code(entry_element, @reaction_xpath) allergy.severity = extract_code(entry_element, @severity_xpath) allergy_list << allergy end allergy_list end end end end end