def test_medication_allergy
    patient = build_record_from_xml('test/fixtures/cat1_fragments/medication_allergy_fragment.xml')
    med_allergy = patient.allergies.first
    expected_start = HealthDataStandards::Util::HL7Helper.timestamp_to_integer('19790809140056')
    assert med_allergy.codes['RxNorm'].include?('996994')