description: US Core Blood Pressure Profile inherits from the US Core Vital Signs Profile. This profile sets minimum expectations for the Observation resource to record, search,  and fetch diastolic and systolic blood pressure observations with standard LOINC codes and UCUM units of measure. It specifies which *additional*  core elements, extensions,  vocabularies, and value sets **SHALL** be present in the resource and constrains how the elements are used. Providing the floor for standards development for specific use cases promotes interoperability and adoption.
package_name: hl7.fhir.us.core
derivation: constraint
name: USCoreBloodPressureProfile
type: Observation
elements:
  code:
    type: CodeableConcept
    short: Blood Pressure
    mustSupport: true
    pattern:
      type: CodeableConcept
      value:
        coding:
        - {code: 85354-9, system: 'http://loinc.org'}
    index: 0
  component:
    short: Component observations
    mustSupport: true
    array: true
    min: 2
    index: 1
    slicing:
      rules: open
      ordered: false
      discriminator:
      - {path: code, type: value}
      min: 2
      slices:
        systolic:
          match:
            code:
              coding:
              - {code: 8480-6, system: 'http://loinc.org'}
          schema:
            short: Systolic Blood Pressure
            mustSupport: true
            _required: true
            index: 2
            elements:
              code:
                short: Systolic Blood Pressure Code
                mustSupport: true
                pattern:
                  type: CodeableConcept
                  value:
                    coding:
                    - {code: 8480-6, system: 'http://loinc.org'}
                index: 3
              valueQuantity:
                type: Quantity
                short: Vital Sign Component Value
                mustSupport: true
                index: 4
                elements:
                  value: {type: decimal, mustSupport: true, index: 5}
                  unit: {type: string, mustSupport: true, index: 6}
                  system:
                    type: uri
                    pattern: {type: Uri, value: 'http://unitsofmeasure.org'}
                    mustSupport: true
                    index: 7
                  code:
                    type: code
                    pattern: {type: Code, value: 'mm[Hg]'}
                    mustSupport: true
                    index: 8
                required: [value, unit, system, code]
            required: [code]
        diastolic:
          match:
            code:
              coding:
              - {code: 8462-4, system: 'http://loinc.org'}
          schema:
            short: Diastolic Blood Pressure
            mustSupport: true
            _required: true
            index: 9
            elements:
              code:
                short: Diastolic Blood Pressure Code
                mustSupport: true
                pattern:
                  type: CodeableConcept
                  value:
                    coding:
                    - {code: 8462-4, system: 'http://loinc.org'}
                index: 10
              valueQuantity:
                type: Quantity
                short: Vital Sign Component Value
                mustSupport: true
                index: 11
                elements:
                  value: {type: decimal, mustSupport: true, index: 12}
                  unit: {type: string, mustSupport: true, index: 13}
                  system:
                    type: uri
                    pattern: {type: Uri, value: 'http://unitsofmeasure.org'}
                    mustSupport: true
                    index: 14
                  code:
                    type: code
                    pattern: {type: Code, value: 'mm[Hg]'}
                    mustSupport: true
                    index: 15
                required: [value, unit, system, code]
            required: [code]
package_version: 8.0.0-ballot
class: profile
kind: resource
url: http://hl7.org/fhir/us/core/StructureDefinition/us-core-blood-pressure
base: http://hl7.org/fhir/us/core/StructureDefinition/us-core-vital-signs
version: 8.0.0-ballot