description: This Observation profile represents the average number of cigarettes smoked per day for each time period indicated by the value selected for code:\n* Number of Cigarettes Smoked in 3 months prior to Pregnancy\n* Number of Cigarettes Smoked in 1st 3 months\n* Number of Cigarettes Smoked in 2nd 3 months\n* Number of Cigarettes Smoked in third or last trimester\n\nWhere number of packs per day are provided, calculate number of cigarettes per day (a pack has 20 cigarettes) and record that number.
package_name: hl7.fhir.us.bfdr
derivation: constraint
name: ObservationCigaretteSmokingBeforeDuringPregnancy
type: Observation
elements:
  code:
    short: This value set contains codes to determine the number of cigarettes smoked in specific periods before and during pregnancy.
    binding: {strength: required, valueSet: 'http://hl7.org/fhir/us/bfdr/ValueSet/cigarette-smoking-before-during-pregnancy'}
    mustSupport: true
    index: 0
  subject:
    type: Reference
    mustSupport: true
    refers: ['http://hl7.org/fhir/us/vr-common-library/StructureDefinition/Patient-mother-vr']
    index: 1
  focus:
    type: Reference
    mustSupport: true
    refers: ['http://hl7.org/fhir/us/vr-common-library/StructureDefinition/Patient-child-vr', 'http://hl7.org/fhir/us/vr-common-library/StructureDefinition/Patient-decedent-fetus-vr']
    index: 2
  value:
    short: Average number of cigarettes smoked per day
    mustSupport: true
    choices: [valueInteger]
    index: 4
  valueInteger: {short: Average number of cigarettes smoked per day, type: integer, mustSupport: true, choiceOf: value, index: 5}
package_version: 1.1.0
class: profile
kind: resource
url: http://hl7.org/fhir/us/bfdr/StructureDefinition/Observation-cigarette-smoking-before-during-pregnancy
base: http://hl7.org/fhir/StructureDefinition/Observation
version: 1.1.0
required: [focus, value, subject, code, valueInteger]