Range-eu-lab
type: StructureDefinition
node role: treeRoot
id:
  v: Range-eu-lab
text:
  status:
    v: extensions
  div:
    v: Generated Narrative: StructureDefinition Range-eu-lab Name Flags Card. Type Description & Constraints<img src="[binary]" alt="doco" style="background-color: inherit"/> Range 0..* Range A measured range using UCUM #xD; Slices for extension Content/Rules for all slices #xD; extension:uncertainty 0..1 decimal Standard Deviation (same units as the quantity) URL: http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty #xD; extension:uncertaintyType 0..1 code Probability Distribution Type for uncertainty URL: http://hl7.org/fhir/StructureDefinition/iso21090-uncertaintyType Binding: ProbabilityDistributionType (required) #xD; low #xD; system 1..1 uri System that defines coded unit form Required Pattern: http://unitsofmeasure.org #xD; code 1..1 code Coded form of the unit #xD; high #xD; system 1..1 uri System that defines coded unit form Required Pattern: http://unitsofmeasure.org #xD; code 1..1 code Coded form of the unit #xD; <img src="[binary]" alt="doco" style="background-color: inherit"/> Documentation for this format
url:
  v: http://hl7.eu/fhir/laboratory/StructureDefinition/Range-eu-lab
  l: Range-eu-lab
version:
  v: 2.0.0-alpha
name:
  v: RangeEuLab
title:
  v: Range (Eu Lab)
status:
  v: draft
date:
  v: 2026-02-25T15:28:07+01:00
publisher:
  v: HL7 Europe
contact:
  name:
    v: HL7 Europe
  telecom:
    system:
      v: url
    value:
      v: http://hl7.eu
description:
  v: This profile constrains the Range data type to use UCUM as the code system for units and optionally share measurement uncertainty
jurisdiction:
  coding:
    system:
      v: http://unstats.un.org/unsd/methods/m49/m49.htm
      l: m49.htm
    code:
      v: 150
    display:
      v: Europe
purpose:
  v: This profile of the Range data type imposes the usage of the UCUM as the code system for units and allows expressing uncertainty of measurement
copyright:
  v: Used by permission of HL7 Europe, all rights reserved Creative Commons License
fhir version:
  v: 4.0.1
mapping:
  identity:
    v: v2
  uri:
    v: http://hl7.org/v2
    l: v2
  name:
    v: HL7 v2 Mapping
mapping:
  identity:
    v: rim
  uri:
    v: http://hl7.org/v3
    l: v3
  name:
    v: RIM Mapping
kind:
  v: complex-type
abstract:
  v: false
type:
  v: Range
  l: Range
base definition:
  v: http://hl7.org/fhir/StructureDefinition/Range
  l: Range
derivation:
  v: constraint
snapshot:
  extension:
    url:
      v: http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version
      l: snapshot-base-version
    value: String
      v: 4.0.1
  element:
    id:
      v: Range
    path:
      v: Range
    short:
      v: A measured range using UCUM
    definition:
      v: A measured range (or a range that can potentially be measured) and uncertainty of the measurement. This profile imposes that the code system for units be UCUM.
    comment:
      v: The stated low and high value are assumed to have arbitrarily high precision when it comes to determining which values are in the range. I.e. 1.99 is not in the range 2 -> 3.
    min:
      v: 0
    max:
      v: *
    base:
      path:
        v: Range
      min:
        v: 0
      max:
        v: *
    condition:
      v: ele-1
    constraint:
      key:
        v: ele-1
      severity:
        v: error
      human:
        v: All FHIR elements must have a @value or children
      expression:
        v: hasValue() or (children().count() > id.count())
      xpath:
        v: @value|f:*|h:div
      source:
        v: http://hl7.org/fhir/StructureDefinition/Element
        l: Element
    constraint:
      key:
        v: rng-2
      severity:
        v: error
      human:
        v: If present, low SHALL have a lower value than high
      expression:
        v: low.empty() or high.empty() or (low <= high)
      xpath:
        v: not(exists(f:low/f:value/@value)) or not(exists(f:high/f:value/@value)) or (number(f:low/f:value/@value) <= number(f:high/f:value/@value))
      source:
        v: http://hl7.org/fhir/StructureDefinition/Range
        l: Range
    is modifier:
      v: false
    mapping:
      identity:
        v: rim
      map:
        v: n/a
    mapping:
      identity:
        v: v2
      map:
        v: NR and also possibly SN (but see also quantity)
    mapping:
      identity:
        v: rim
      map:
        v: IVL<QTY[not(type="TS")]> [lowClosed="true" and highClosed="true"]or URG<QTY[not(type="TS")]>
  element:
    id:
      v: Range.id
    path:
      v: Range.id
    representation:
      v: xmlAttr
    short:
      v: Unique id for inter-element referencing
    definition:
      v: Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
    min:
      v: 0
    max:
      v: 1
    base:
      path:
        v: Element.id
      min:
        v: 0
      max:
        v: 1
    type:
      extension:
        value: Url
      code:
        v: http://hl7.org/fhirpath/System.String
        l: System.String
    is modifier:
      v: false
    is summary:
      v: false
    mapping:
      identity:
        v: rim
      map:
        v: n/a
  element:
    id:
      v: Range.extension
    path:
      v: Range.extension
    slicing:
      description:
        v: Extensions are always sliced by (at least) url
      rules:
        v: open
    short:
      v: Additional content defined by implementations

Url
v: string
l: string

v: value

v: url

v: May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

v: There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

v: extensions

v: user content

v: 0

v: *

path:
  v: Element.extension
min:
  v: 0
max:
  v: *

code:
  v: Extension
  l: Extension

key:
  v: ele-1
severity:
  v: error
human:
  v: All FHIR elements must have a @value or children
expression:
  v: hasValue() or (children().count() > id.count())
xpath:
  v: @value|f:*|h:div
source:
  v: http://hl7.org/fhir/StructureDefinition/Element
  l: Element

key:
  v: ext-1
severity:
  v: error
human:
  v: Must have either extensions or value[x], not both
expression:
  v: extension.exists() != value.exists()
xpath:
  v: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])
source:
  v: http://hl7.org/fhir/StructureDefinition/Extension
  l: Extension

v: false

v: false

identity:
  v: rim
map:
  v: n/a

id:
  v: Range.extension:uncertainty
path:
  v: Range.extension
slice name:
  v: uncertainty
short:
  v: Standard Deviation (same units as the quantity)
definition:
  v: The primary measure of variance/uncertainty of the value (the square root of the sum of the squares of the differences between all data points and the mean).
comment:
  v: standardDeviation has the same units as the quantity. It is used to normalize the data for computing the distribution function. Applications that cannot deal with probability distributions can still get an idea about the confidence level by looking at standardDeviation.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Element.extension
  min:
    v: 0
  max:
    v: *
type:
  code:
    v: Extension
    l: Extension
  profile:
    v: http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty
    l: iso21090-uncertainty
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
constraint:
  key:
    v: ext-1
  severity:
    v: error
  human:
    v: Must have either extensions or value[x], not both
  expression:
    v: extension.exists() != value.exists()
  xpath:
    v: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])
  source:
    v: http://hl7.org/fhir/StructureDefinition/Extension
    l: Extension
is modifier:
  v: false
is summary:
  v: false
mapping:
  identity:
    v: rim
  map:
    v: PPD.standardDeviation

id:
  v: Range.extension:uncertaintyType
path:
  v: Range.extension
slice name:
  v: uncertaintyType
short:
  v: Probability Distribution Type for uncertainty
definition:
  v: A code specifying the type of probability distribution for the uncertainty.
comment:
  v: This is only meaningful if there is also an uncertainty extension. If there is an uncertainty extension with no type, this means that the probability distribution type is unknown. In that case, the uncertainty has the meaning of an informal guess.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Element.extension
  min:
    v: 0
  max:
    v: *
type:
  code:
    v: Extension
    l: Extension
  profile:
    v: http://hl7.org/fhir/StructureDefinition/iso21090-uncertaintyType
    l: iso21090-uncertaintyType
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
constraint:
  key:
    v: ext-1
  severity:
    v: error
  human:
    v: Must have either extensions or value[x], not both
  expression:
    v: extension.exists() != value.exists()
  xpath:
    v: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])
  source:
    v: http://hl7.org/fhir/StructureDefinition/Extension
    l: Extension
is modifier:
  v: false
is summary:
  v: false
mapping:
  identity:
    v: rim
  map:
    v: PPD.distributionType

id:
  v: Range.low
path:
  v: Range.low
short:
  v: Low limit
definition:
  v: The low limit. The boundary is inclusive.
comment:
  v: If the low element is missing, the low boundary is not known.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Range.low
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: Quantity
    l: Quantity
  profile:
    v: http://hl7.org/fhir/StructureDefinition/SimpleQuantity|4.0.1
    l: http://hl7.org/fhir/StructureDefinition/SimpleQuantity
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: v2
  map:
    v: NR.1
mapping:
  identity:
    v: rim
  map:
    v: ./low

id:
  v: Range.low.id
path:
  v: Range.low.id
representation:
  v: xmlAttr
short:
  v: Unique id for inter-element referencing
definition:
  v: Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Element.id
  min:
    v: 0
  max:
    v: 1
type:
  extension:
    url:
      v: http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type
      l: structuredefinition-fhir-type
    value: Url
      v: string
      l: string
  code:
    v: http://hl7.org/fhirpath/System.String
    l: System.String
is modifier:
  v: false
is summary:
  v: false
mapping:
  identity:
    v: rim
  map:
    v: n/a

id:
  v: Range.low.extension
path:
  v: Range.low.extension
slicing:
  discriminator:
    type:
      v: value
    path:
      v: url
  description:
    v: Extensions are always sliced by (at least) url
  rules:
    v: open
short:
  v: Additional content defined by implementations
definition:
  v: May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
comment:
  v: There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
alias:
  v: extensions
alias:
  v: user content
min:
  v: 0
max:
  v: *
base:
  path:
    v: Element.extension
  min:
    v: 0
  max:
    v: *
type:
  code:
    v: Extension
    l: Extension
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
constraint:
  key:
    v: ext-1
  severity:
    v: error
  human:
    v: Must have either extensions or value[x], not both
  expression:
    v: extension.exists() != value.exists()
  xpath:
    v: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])
  source:
    v: http://hl7.org/fhir/StructureDefinition/Extension
    l: Extension
is modifier:
  v: false
is summary:
  v: false
mapping:
  identity:
    v: rim
  map:
    v: n/a

id:
  v: Range.low.value
path:
  v: Range.low.value
short:
  v: Numerical value (with implicit precision)
definition:
  v: The value of the measured amount. The value includes an implicit precision in the presentation of the value.
comment:
  v: The implicit precision in the value should always be honored. Monetary values have their own rules for handling precision (refer to standard accounting text books).
requirements:
  v: Precision is handled implicitly in almost all cases of measurement.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Quantity.value
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: decimal
    l: decimal
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: v2
  map:
    v: SN.2 / CQ - N/A
mapping:
  identity:
    v: rim
  map:
    v: PQ.value, CO.value, MO.value, IVL.high or IVL.low depending on the value

id:
  v: Range.low.comparator
path:
  v: Range.low.comparator
short:
  v: < | <= | >= | > - how to understand the value
definition:
  v: Not allowed to be used in this context
requirements:
  v: Need a framework for handling measures where the value is <5ug/L or >400mg/L due to the limitations of measuring methodology.
min:
  v: 0
max:
  v: 0
base:
  path:
    v: Quantity.comparator
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: code
    l: code
meaning when missing:
  v: If there is no comparator, then there is no modification of the value
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: true
is modifier reason:
  v: This is labeled as "Is Modifier" because the comparator modifies the interpretation of the value significantly. If there is no comparator, then there is no modification of the value
is summary:
  v: true
binding:
  extension:
    url:
      v: http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName
      l: elementdefinition-bindingName
    value: String
      v: QuantityComparator
  strength:
    v: required
  description:
    v: How the Quantity should be understood and represented.
  value set:
    v: http://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1
    l: http://hl7.org/fhir/ValueSet/quantity-comparator
mapping:
  identity:
    v: v2
  map:
    v: SN.1 / CQ.1
mapping:
  identity:
    v: rim
  map:
    v: IVL properties

id:
  v: Range.low.unit
extension:
  url:
    v: http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable
    l: elementdefinition-translatable
  value: Boolean
    v: true
path:
  v: Range.low.unit
short:
  v: Unit representation
definition:
  v: A human-readable form of the unit.
requirements:
  v: There are many representations for units of measure and in many contexts, particular representations are fixed and required. I.e. mcg for micrograms.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Quantity.unit
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: string
    l: string
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: v2
  map:
    v: (see OBX.6 etc.) / CQ.2
mapping:
  identity:
    v: rim
  map:
    v: PQ.unit

id:
  v: Range.low.system
path:
  v: Range.low.system
short:
  v: System that defines coded unit form
definition:
  v: The identification of the system that provides the coded form of the unit.
requirements:
  v: Need to know the system that defines the coded form of the unit.
min:
  v: 1
max:
  v: 1
base:
  path:
    v: Quantity.system
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: uri
    l: uri
pattern: Uri
  v: http://unitsofmeasure.org
  l: unitsofmeasure.org
condition:
  v: qty-3
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: v2
  map:
    v: (see OBX.6 etc.) / CQ.2
mapping:
  identity:
    v: rim
  map:
    v: CO.codeSystem, PQ.translation.codeSystem

id:
  v: Range.low.code
path:
  v: Range.low.code
short:
  v: Coded form of the unit
definition:
  v: A computer processable form of the unit in some unit representation system.
comment:
  v: The preferred system is UCUM, but SNOMED CT can also be used (for customary units) or ISO 4217 for currency. The context of use may additionally require a code from a particular system.
requirements:
  v: Need a computable form of the unit that is fixed across all forms. UCUM provides this for quantities, but SNOMED CT provides many units of interest.
min:
  v: 1
max:
  v: 1
base:
  path:
    v: Quantity.code
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: code
    l: code
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: v2
  map:
    v: (see OBX.6 etc.) / CQ.2
mapping:
  identity:
    v: rim
  map:
    v: PQ.code, MO.currency, PQ.translation.code

id:
  v: Range.high
path:
  v: Range.high
short:
  v: High limit
definition:
  v: The high limit. The boundary is inclusive.
comment:
  v: If the high element is missing, the high boundary is not known.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Range.high
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: Quantity
    l: Quantity
  profile:
    v: http://hl7.org/fhir/StructureDefinition/SimpleQuantity|4.0.1
    l: http://hl7.org/fhir/StructureDefinition/SimpleQuantity
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: v2
  map:
    v: NR.2
mapping:
  identity:
    v: rim
  map:
    v: ./high

id:
  v: Range.high.id
path:
  v: Range.high.id
representation:
  v: xmlAttr
short:
  v: Unique id for inter-element referencing
definition:
  v: Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Element.id
  min:
    v: 0
  max:
    v: 1
type:
  extension:
    url:
      v: http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type
      l: structuredefinition-fhir-type
    value: Url
      v: string
      l: string
  code:
    v: http://hl7.org/fhirpath/System.String
    l: System.String
is modifier:
  v: false
is summary:
  v: false
mapping:
  identity:
    v: rim
  map:
    v: n/a

id:
  v: Range.high.extension
path:
  v: Range.high.extension
slicing:
  discriminator:
    type:
      v: value
    path:
      v: url
  description:
    v: Extensions are always sliced by (at least) url
  rules:
    v: open
short:
  v: Additional content defined by implementations
definition:
  v: May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
comment:
  v: There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
alias:
  v: extensions
alias:
  v: user content
min:
  v: 0
max:
  v: *
base:
  path:
    v: Element.extension
  min:
    v: 0
  max:
    v: *
type:
  code:
    v: Extension
    l: Extension
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
constraint:
  key:
    v: ext-1
  severity:
    v: error
  human:
    v: Must have either extensions or value[x], not both
  expression:
    v: extension.exists() != value.exists()
  xpath:
    v: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])
  source:
    v: http://hl7.org/fhir/StructureDefinition/Extension
    l: Extension
is modifier:
  v: false
is summary:
  v: false
mapping:
  identity:
    v: rim
  map:
    v: n/a

id:
  v: Range.high.value
path:
  v: Range.high.value
short:
  v: Numerical value (with implicit precision)
definition:
  v: The value of the measured amount. The value includes an implicit precision in the presentation of the value.
comment:
  v: The implicit precision in the value should always be honored. Monetary values have their own rules for handling precision (refer to standard accounting text books).
requirements:
  v: Precision is handled implicitly in almost all cases of measurement.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Quantity.value
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: decimal
    l: decimal
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: v2
  map:
    v: SN.2 / CQ - N/A
mapping:
  identity:
    v: rim
  map:
    v: PQ.value, CO.value, MO.value, IVL.high or IVL.low depending on the value

id:
  v: Range.high.comparator
path:
  v: Range.high.comparator
short:
  v: < | <= | >= | > - how to understand the value
definition:
  v: Not allowed to be used in this context
requirements:
  v: Need a framework for handling measures where the value is <5ug/L or >400mg/L due to the limitations of measuring methodology.
min:
  v: 0
max:
  v: 0
base:
  path:
    v: Quantity.comparator
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: code
    l: code
meaning when missing:
  v: If there is no comparator, then there is no modification of the value
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: true
is modifier reason:
  v: This is labeled as "Is Modifier" because the comparator modifies the interpretation of the value significantly. If there is no comparator, then there is no modification of the value
is summary:
  v: true
binding:
  extension:
    url:
      v: http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName
      l: elementdefinition-bindingName
    value: String
      v: QuantityComparator
  strength:
    v: required
  description:
    v: How the Quantity should be understood and represented.
  value set:
    v: http://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1
    l: http://hl7.org/fhir/ValueSet/quantity-comparator
mapping:
  identity:
    v: v2
  map:
    v: SN.1 / CQ.1
mapping:
  identity:
    v: rim
  map:
    v: IVL properties

id:
  v: Range.high.unit
extension:
  url:
    v: http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable
    l: elementdefinition-translatable
  value: Boolean
    v: true
path:
  v: Range.high.unit
short:
  v: Unit representation
definition:
  v: A human-readable form of the unit.
requirements:
  v: There are many representations for units of measure and in many contexts, particular representations are fixed and required. I.e. mcg for micrograms.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Quantity.unit
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: string
    l: string
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: v2
  map:
    v: (see OBX.6 etc.) / CQ.2
mapping:
  identity:
    v: rim
  map:
    v: PQ.unit

id:
  v: Range.high.system
path:
  v: Range.high.system
short:
  v: System that defines coded unit form
definition:
  v: The identification of the system that provides the coded form of the unit.
requirements:
  v: Need to know the system that defines the coded form of the unit.
min:
  v: 1
max:
  v: 1
base:
  path:
    v: Quantity.system
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: uri
    l: uri
pattern: Uri
  v: http://unitsofmeasure.org
  l: unitsofmeasure.org
condition:
  v: qty-3
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: v2
  map:
    v: (see OBX.6 etc.) / CQ.2
mapping:
  identity:
    v: rim
  map:
    v: CO.codeSystem, PQ.translation.codeSystem

id:
  v: Range.high.code
path:
  v: Range.high.code
short:
  v: Coded form of the unit
definition:
  v: A computer processable form of the unit in some unit representation system.
comment:
  v: The preferred system is UCUM, but SNOMED CT can also be used (for customary units) or ISO 4217 for currency. The context of use may additionally require a code from a particular system.
requirements:
  v: Need a computable form of the unit that is fixed across all forms. UCUM provides this for quantities, but SNOMED CT provides many units of interest.
min:
  v: 1
max:
  v: 1
base:
  path:
    v: Quantity.code
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: code
    l: code
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: v2
  map:
    v: (see OBX.6 etc.) / CQ.2
mapping:
  identity:
    v: rim
  map:
    v: PQ.code, MO.currency, PQ.translation.code

element:
  id:
    v: Range
  path:
    v: Range
  short:
    v: A measured range using UCUM
  definition:
    v: A measured range (or a range that can potentially be measured) and uncertainty of the measurement. This profile imposes that the code system for units be UCUM.
element:
  id:
    v: Range.extension:uncertainty
  path:
    v: Range.extension
  slice name:
    v: uncertainty
  min:
    v: 0
  max:
    v: 1
  type:
    code:
      v: Extension
      l: Extension
    profile:
      v: http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty
      l: iso21090-uncertainty
element:
  id:
    v: Range.extension:uncertaintyType
  path:
    v: Range.extension
  slice name:
    v: uncertaintyType
  min:
    v: 0
  max:
    v: 1
  type:
    code:
      v: Extension
      l: Extension
    profile:
      v: http://hl7.org/fhir/StructureDefinition/iso21090-uncertaintyType
      l: iso21090-uncertaintyType
element:
  id:
    v: Range.low.system
  path:
    v: Range.low.system
  min:
    v: 1
  pattern: Uri
    v: http://unitsofmeasure.org
    l: unitsofmeasure.org
element:
  id:
    v: Range.low.code
  path:
    v: Range.low.code
  min:
    v: 1
element:
  id:
    v: Range.high.system
  path:
    v: Range.high.system
  min:
    v: 1
  pattern: Uri
    v: http://unitsofmeasure.org
    l: unitsofmeasure.org
element:
  id:
    v: Range.high.code
  path:
    v: Range.high.code
  min:
    v: 1