Release 4 STU 3 Ballot
This page is part of the FHIR Specification (v4.0.1: R4 - Mixed Normative and

This page is part of the FHIR Specification (v1.6.0: STU ) in it's permanent home (it will always be available at this URL). The current version which supercedes this version is 3 Ballot 4). The current version which supercedes this version is 5.0.0 . For a full list of available versions, see the Directory of published versions . For a full list of available versions, see the Directory of published versions . Page versions: . Page versions: R5 R4B R4 Content Detailed Descriptions Mappings XML JSON Extension: precondition Orders and Observations Work Group   Maturity Level : 1 Informative Use Context : Any URL for this extension: http://hl7.org/fhir/StructureDefinition/observation-precondition Status: draft. Extension maintained by: Health Level Seven, Inc. - OO WG Other preceding or concurrent observations that must be known to correctly interpret the the observation. For example an fiO2 measure taken alongside of a SpO2 measurement. See the Observation notes section for additional guidance. Context of Use: Use on Element ID Observation Extension Content Summary Full Structure XML JSON All Summary Name Flags Card. Type Description & Constraints precondition 0..* Reference ( Observation ) URL = http://hl7.org/fhir/StructureDefinition/observation-precondition precondition: Other preceding or concurrent observations that must be known to correctly interpret the the observation. For example an fiO2 measure taken alongside of a SpO2 measurement. See the Observation notes section for additional guidance. Use on Element ID Observation Documentation for this format Full Structure Name Flags Card. Type Description & Constraints extension 0..* Extension URL = http://hl7.org/fhir/StructureDefinition/observation-precondition precondition: Other preceding or concurrent observations that must be known to correctly interpret the the observation. For example an fiO2 measure taken alongside of a SpO2 measurement. See the Observation notes section for additional guidance. Use on Element ID Observation extension I 0..0 url 1..1 uri "http://hl7.org/fhir/StructureDefinition/observation-precondition" value[x] I 1..1 Reference ( Observation ) Value of extension Documentation for this format R3 XML Template <!-- precondition -->

Observation-example-bloodpressure.ttl

Raw Turtle , JSON-LD

Blood Pressure Measurement


@prefix fhir: <http://hl7.org/fhir/> .
@prefix loinc: <http://loinc.org/owl#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix sct: <http://snomed.info/id/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .


< xmlns="http://hl7.org/fhir"
     url="" >
  <!-- from Element: 
 <</valueReference>
</extension>
JSON
Template
  
{ // 
  // from Element: 
    " ]
    " 
    "
  }
Summary
Name
Flags
Card.
Type
Description
&
Constraints
precondition
0..*
Reference
(
Observation
)
URL
=
http://hl7.org/fhir/StructureDefinition/observation-precondition
precondition:
Other
preceding
or
concurrent
observations
that
must
be
known
to
correctly
interpret
the
the
observation.
For
example
an
fiO2
measure
taken
alongside
of
a
SpO2
measurement.
See
the
Observation
notes
section
for
additional
guidance.
Use
on
Element
ID
Observation
Documentation
for
this
format
Full
Structure
Name
Flags
Card.
Type
Description
&
Constraints
extension
0..*
Extension
URL
=
http://hl7.org/fhir/StructureDefinition/observation-precondition
precondition:
Other
preceding
or
concurrent
observations
that
must
be
known
to
correctly
interpret
the
the
observation.
For
example
an
fiO2
measure
taken
alongside
of
a
SpO2
measurement.
See
the
Observation
notes
section
for
additional
guidance.
Use
on
Element
ID
Observation
extension
I
0..0
url
1..1
uri
"http://hl7.org/fhir/StructureDefinition/observation-precondition"
value[x]
I
1..1
Reference
(
Observation
)
Value
of
extension
Documentation
for
this
format
XML
Template
  
<!-- precondition -->

# - resource -------------------------------------------------------------------


< xmlns="http://hl7.org/fhir"
     url="" >
  <!-- from Element: 
 <</valueReference>
</extension>
JSON
Template
  
{ // 
  // from Element: 
    " ]
    " 
    "
  }
 
Constraints
ele-1
:
All
FHIR
elements
must
have
a
@value
or
children
(xpath:
@value|f:*|h:div
)
ext-1
:
Must
have
either
extensions
or
value[x],
not
both
(xpath:
exists(f:extension)!=exists(f:*[starts-with(local-name(.),
'value')])
)
ele-1
:
On
Extension.extension:
All
FHIR
elements
must
have
a
@value
or
children
(xpath
on
Extension.extension:
@value|f:*|h:div
)
ext-1
:
On
Extension.extension:
Must
have
either
extensions
or
value[x],
not
both
(xpath
on
Extension.extension:
exists(f:extension)!=exists(f:*[starts-with(local-name(.),
"value")])
)
ele-1
:
On
Extension.value[x]:
All
FHIR
elements
must
have
a
@value
or
children
(xpath
on
Extension.value[x]:
@value|f:*|h:div
)
®©
HL7.org
2011+.
FHIR
Release
4
(Technical
Correction
#1)
(v4.0.1)
generated
on
Fri,
Nov
1,
2019
09:34+1100.
QA
Page
Links:

<http://hl7.org/fhir/Observation/blood-pressure> a fhir:Observation;
  fhir:nodeRole fhir:treeRoot;
  fhir:Resource.id [ fhir:value "blood-pressure"];
  fhir:Resource.meta [
     fhir:Meta.lastUpdated [ fhir:value "2014-01-30T22:35:23+11:00"^^xsd:dateTime ]
  ];
  fhir:DomainResource.text [
     fhir:Narrative.status [ fhir:value "generated" ];
     fhir:Narrative.div "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p><b>Generated Narrative with Details</b></p><p><b>id</b>: blood-pressure</p><p><b>meta</b>: </p><p><b>identifier</b>: urn:uuid:187e0c12-8dd2-67e2-99b2-bf273c878281</p><p><b>status</b>: final</p><p><b>category</b>: Vital Signs <span>(Details : {http://hl7.org/fhir/observation-category code 'vital-signs' = 'Vital Signs', given as 'Vital Signs'})</span></p><p><b>code</b>: Blood pressure systolic &amp; diastolic <span>(Details : {LOINC code '55284-4' = 'Blood pressure systolic and diastolic', given as 'Blood pressure systolic &amp; diastolic'})</span></p><p><b>subject</b>: <a>Patient/example</a></p><p><b>effective</b>: 17/09/2012</p><p><b>performer</b>: <a>Practitioner/example</a></p><p><b>interpretation</b>: Below low normal <span>(Details : {http://hl7.org/fhir/v2/0078 code 'L' = 'Low', given as 'low'})</span></p><p><b>bodySite</b>: Right arm <span>(Details : {SNOMED CT code '368209003' = 'Right upper arm structure (body structure)', given as 'Right arm'})</span></p><blockquote><p><b>component</b></p><p><b>code</b>: Systolic blood pressure <span>(Details : {LOINC code '8480-6' = 'Systolic blood pressure', given as 'Systolic blood pressure'}; {SNOMED CT code '271649006' = 'Systolic blood pressure (observable entity)', given as 'Systolic blood pressure'}; {http://acme.org/devices/clinical-codes code 'bp-s' = '??', given as 'Systolic Blood pressure'})</span></p><p><b>value</b>: 107 mmHg<span> (Details: http://unitsofmeasure.org code mm[Hg] = 'mmHg')</span></p></blockquote><blockquote><p><b>component</b></p><p><b>code</b>: Diastolic blood pressure <span>(Details : {LOINC code '8462-4' = 'Diastolic blood pressure', given as 'Diastolic blood pressure'})</span></p><p><b>value</b>: 60 mmHg<span> (Details: http://unitsofmeasure.org code mm[Hg] = 'mmHg')</span></p></blockquote></div>"
  ];
  fhir:Observation.identifier [
     fhir:index 0;
     fhir:Identifier.system [ fhir:value "urn:ietf:rfc:3986" ];
     fhir:Identifier.value [ fhir:value "urn:uuid:187e0c12-8dd2-67e2-99b2-bf273c878281" ]
  ];
  fhir:Observation.status [ fhir:value "final"];
  fhir:Observation.category [
     fhir:index 0;
     fhir:CodeableConcept.coding [
       fhir:index 0;
       fhir:Coding.system [ fhir:value "http://hl7.org/fhir/observation-category" ];
       fhir:Coding.code [ fhir:value "vital-signs" ];
       fhir:Coding.display [ fhir:value "Vital Signs" ]
     ]
  ];
  fhir:Observation.code [
     fhir:CodeableConcept.coding [
       fhir:index 0;
       fhir:concept loinc:55284-4;
       fhir:Coding.system [ fhir:value "http://loinc.org" ];
       fhir:Coding.code [ fhir:value "55284-4" ];
       fhir:Coding.display [ fhir:value "Blood pressure systolic & diastolic" ]
     ]
  ];
  fhir:Observation.subject [
     fhir:link <http://hl7.org/fhir/Patient/example>;
     fhir:Reference.reference [ fhir:value "Patient/example" ]
  ];
  fhir:Observation.effectiveDateTime [ fhir:value "2012-09-17"^^xsd:date];
  fhir:Observation.performer [
     fhir:index 0;
     fhir:link <http://hl7.org/fhir/Practitioner/example>;
     fhir:Reference.reference [ fhir:value "Practitioner/example" ]
  ];
  fhir:Observation.interpretation [
     fhir:CodeableConcept.coding [
       fhir:index 0;
       fhir:Coding.system [ fhir:value "http://hl7.org/fhir/v2/0078" ];
       fhir:Coding.code [ fhir:value "L" ];
       fhir:Coding.display [ fhir:value "low" ]
     ];
     fhir:CodeableConcept.text [ fhir:value "Below low normal" ]
  ];
  fhir:Observation.bodySite [
     fhir:CodeableConcept.coding [
       fhir:index 0;
       fhir:concept sct:368209003;
       fhir:Coding.system [ fhir:value "http://snomed.info/sct" ];
       fhir:Coding.code [ fhir:value "368209003" ];
       fhir:Coding.display [ fhir:value "Right arm" ]
     ]
  ];
  fhir:Observation.component [
     fhir:index 0;
     fhir:Observation.component.code [
       fhir:CodeableConcept.coding [
         fhir:index 0;
         fhir:concept loinc:8480-6;
         fhir:Coding.system [ fhir:value "http://loinc.org" ];
         fhir:Coding.code [ fhir:value "8480-6" ];
         fhir:Coding.display [ fhir:value "Systolic blood pressure" ]
       ], [
         fhir:index 1;
         fhir:concept sct:271649006;
         fhir:Coding.system [ fhir:value "http://snomed.info/sct" ];
         fhir:Coding.code [ fhir:value "271649006" ];
         fhir:Coding.display [ fhir:value "Systolic blood pressure" ]
       ], [
         fhir:index 2;
         fhir:Coding.system [ fhir:value "http://acme.org/devices/clinical-codes" ];
         fhir:Coding.code [ fhir:value "bp-s" ];
         fhir:Coding.display [ fhir:value "Systolic Blood pressure" ]
       ]
     ];
     fhir:Observation.component.valueQuantity [
       fhir:Quantity.value [ fhir:value "107"^^xsd:decimal ];
       fhir:Quantity.unit [ fhir:value "mmHg" ];
       fhir:Quantity.system [ fhir:value "http://unitsofmeasure.org" ];
       fhir:Quantity.code [ fhir:value "mm[Hg]" ]
     ]
  ], [
     fhir:index 1;
     fhir:Observation.component.code [
       fhir:CodeableConcept.coding [
         fhir:index 0;
         fhir:concept loinc:8462-4;
         fhir:Coding.system [ fhir:value "http://loinc.org" ];
         fhir:Coding.code [ fhir:value "8462-4" ];
         fhir:Coding.display [ fhir:value "Diastolic blood pressure" ]
       ]
     ];
     fhir:Observation.component.valueQuantity [
       fhir:Quantity.value [ fhir:value "60"^^xsd:decimal ];
       fhir:Quantity.unit [ fhir:value "mmHg" ];
       fhir:Quantity.system [ fhir:value "http://unitsofmeasure.org" ];
       fhir:Quantity.code [ fhir:value "mm[Hg]" ]
     ]
  ] .

<http://hl7.org/fhir/Patient/example> a fhir:Patient .

<http://hl7.org/fhir/Practitioner/example> a fhir:Practitioner .

# -------------------------------------------------------------------------------------


Usage note: every effort has been made to ensure that the examples are correct and useful, but they are not a normative part of the specification.