description: Renal function can be determined by laboratory measurement of serum creatinine, from which the estimated glomerular (eGFR_MDMR) filtration rate can be calculated.
package_name: ch.fhir.ig.ch-lab-report
derivation: constraint
name: ChLabObservation_eGFR_MDRD_male
type: Observation
elements:
  code:
    short: eGFR_MDMR
    mustSupport: true
    pattern:
      type: CodeableConcept
      value:
        coding:
        - {code: 70969-1, system: 'http://loinc.org', display: 'Glomerular filtration rate/1.73 sq M.predicted among males [Volume Rate/Area] in Serum, Plasma or Blood by Creatinine-based formula (MDRD)'}
    index: 0
  referenceRange:
    elements:
      low:
        elements:
          value:
            pattern: {type: Decimal, value: 60}
            index: 1
          unit:
            pattern: {type: String, value: mL/min}
            index: 2
  component:
    mustSupport: true
    array: true
    min: 2
    max: 2
    index: 3
    slicing:
      rules: closed
      ordered: false
      description: '2 possibilities: black - non-black'
      discriminator:
      - {path: code, type: value}
      min: 2
      max: 2
      slices:
        blacks:
          match:
            code:
              coding:
              - {code: 48643-1, system: 'http://loinc.org', display: 'Glomerular filtration rate/1.73 sq M.predicted among blacks [Volume Rate/Area] in Serum, Plasma or Blood by Creatinine-based formula (MDRD)'}
          schema:
            short: eGFR_MDMR among blacks
            mustSupport: true
            _required: true
            index: 4
            extensions:
              value-r5: {url: null, index: 5}
            elements:
              extension:
                index: 5
                slicing:
                  slices:
                    value-r5:
                      match: {}
                      schema: {index: 5}
              code:
                short: eGFR_MDMR among blacks code
                pattern:
                  type: CodeableConcept
                  value:
                    coding:
                    - {code: 48643-1, system: 'http://loinc.org', display: 'Glomerular filtration rate/1.73 sq M.predicted among blacks [Volume Rate/Area] in Serum, Plasma or Blood by Creatinine-based formula (MDRD)'}
                index: 6
              value:
                short: Lab Result Component Value
                mustSupport: true
                choices: [valueQuantity]
                index: 8
                slicing:
                  slices:
                    valueQuantity:
                      match: {}
                      schema:
                        short: Lab Result Component Value
                        mustSupport: true
                        choices: [valueQuantity]
                        index: 8
              valueQuantity:
                type: Quantity
                short: Lab Result Component Value
                mustSupport: true
                choiceOf: value
                index: 9
                slicing:
                  slices:
                    valueQuantity:
                      match: {}
                      schema: {type: Quantity, short: Lab Result Component Value, mustSupport: true, choiceOf: value, index: 9}
              value[x]:
                elements:
                  value: {mustSupport: true, index: 10}
                  unit: {mustSupport: true, index: 11}
                  code:
                    pattern: {type: Code, value: mL/min}
                    index: 12
                required: [value, unit]
        non-blacks:
          match:
            code:
              coding:
              - {code: 48642-3, system: 'http://loinc.org', display: 'Glomerular filtration rate/1.73 sq M.predicted among non-blacks [Volume Rate/Area] in Serum, Plasma or Blood by Creatinine-based formula (MDRD)'}
          schema:
            short: eGFR_MDMR among non-blacks
            mustSupport: true
            _required: true
            index: 13
            extensions:
              value-r5: {url: null, index: 14}
            elements:
              extension:
                index: 14
                slicing:
                  slices:
                    value-r5:
                      match: {}
                      schema: {index: 14}
              code:
                short: eGFR_MDMR among non-blacks code
                pattern:
                  type: CodeableConcept
                  value:
                    coding:
                    - {code: 48642-3, system: 'http://loinc.org', display: 'Glomerular filtration rate/1.73 sq M.predicted among non-blacks [Volume Rate/Area] in Serum, Plasma or Blood by Creatinine-based formula (MDRD)'}
                index: 15
              value:
                short: Lab Result Component Value
                mustSupport: true
                choices: [valueQuantity]
                index: 17
                slicing:
                  slices:
                    valueQuantity:
                      match: {}
                      schema:
                        short: Lab Result Component Value
                        mustSupport: true
                        choices: [valueQuantity]
                        index: 17
              valueQuantity:
                type: Quantity
                short: Lab Result Component Value
                mustSupport: true
                choiceOf: value
                index: 18
                slicing:
                  slices:
                    valueQuantity:
                      match: {}
                      schema: {type: Quantity, short: Lab Result Component Value, mustSupport: true, choiceOf: value, index: 18}
              value[x]:
                elements:
                  value: {mustSupport: true, index: 19}
                  unit: {mustSupport: true, index: 20}
                  code:
                    pattern: {type: Code, value: mL/min}
                    index: 21
                required: [value, unit]
package_version: 1.0.0-ballot
class: profile
kind: resource
url: http://fhir.ch/ig/ch-lab-report/StructureDefinition/ch-lab-observation-egfr-mdrd-male
base: http://fhir.ch/ig/ch-lab-report/StructureDefinition/ch-lab-observation-egfr
version: 1.0.0-ballot