Class: HealthDataStandards::Import::C32::AllergyImporter

Inherits:
SectionImporter show all
Defined in:
lib/health-data-standards/import/c32/allergy_importer.rb

Instance Attribute Summary

Attributes inherited from SectionImporter

#check_for_usable

Instance Method Summary collapse

Methods inherited from SectionImporter

#create_entry, #lookup_tag

Constructor Details

#initialize ⇒ AllergyImporter

Returns a new instance of AllergyImporter.



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# File 'lib/health-data-standards/import/c32/allergy_importer.rb', line 6

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

Instance Method Details

#create_entries(doc, id_map = {}) ⇒ Array

Traverses that HITSP C32 document passed in using XPath and creates an Array of Entry objects based on what it finds

Parameters:

  • doc (Nokogiri::XML::Document) —

    It is expected that the root node of this document will have the “cda” namespace registered to “urn:hl7-org:v3” measure definition

Returns:

  • (Array) —

    will be a list of Entry objects



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# File 'lib/health-data-standards/import/c32/allergy_importer.rb', line 23

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