## Profile Comparison between http://hl7.org/fhir/us/core/StructureDefinition/us-core-head-circumference vs http://hl7.org/fhir/us/core/StructureDefinition/us-core-head-circumference

Left: | US Core Head Circumference Profile (http://hl7.org/fhir/us/core/StructureDefinition/us-core-head-circumference)
Right: | US Core Head Circumference Profile (http://hl7.org/fhir/us/core/StructureDefinition/us-core-head-circumference)

### Messages

Error | StructureDefinition.version | Values for version differ: '4.0.0' vs '8.0.1'
Information | StructureDefinition.date | Values for date differ: '2020-11-18' vs '2023-10-17'
Information | StructureDefinition.publisher | Values for publisher differ: 'HL7 International - US Realm Steering Committee' vs 'HL7 International / Cross-Group Projects'
Information | StructureDefinition.definition | Values for definition differ: 'Defines constraints on Observation to represent head circumference observations with a standard LOINC code and UCUM units of measure. This profile is derived from the US Core Vital Signs Profile.' vs 'The FHIR Vitals Signs profile sets minimum expectations for the Observation Resource to record, search and fetch the vital signs associated with a patient.'
Information | Observation.language | Example/preferred bindings differ at Observation.language using binding from USCoreHeadCircumferenceProfile
Information | Observation.category | Example/preferred bindings differ at Observation.category using binding from USCoreHeadCircumferenceProfile
Warning | Observation.performer | Elements differ in definition for mustSupport: 'false' vs 'true'
Information | Observation.referenceRange.type | Example/preferred bindings differ at Observation.referenceRange.type using binding from USCoreHeadCircumferenceProfile
Information | StructureDefinition.short | Values for short differ: 'Type of component observation (code / type)' vs 'Coded vital sign result type'
Information | Observation.component.referenceRange.type | Example/preferred bindings differ at Observation.component.referenceRange.type using binding from USCoreHeadCircumferenceProfile

### Metadata

Name | Value | Comments
--- | --- | ---
abstract | false |
baseDefinition | http://hl7.org/fhir/us/core/StructureDefinition/us-core-vital-signs |
copyright | Used by permission of HL7 International, all rights reserved Creative Commons License |
date | 2020-11-18 | 2023-10-17 | Values Differ
description | Defines constraints on Observation to represent head circumference observations with a standard LOINC code and UCUM units of measure. This profile is derived from the US Core Vital Signs Profile. | The US Core Head Circumference Profile inherits from the US Core Vital Signs Profile. This profile sets minimum expectations for the Observation resource to record, search, and fetch head circumference observations with a standard LOINC code 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. | Values Differ
experimental | false |
fhirVersion | 4.0.1 |
jurisdiction |  |
jurisdiction[0] | urn:iso:std:iso:3166#US |
kind | resource |
name | USCoreHeadCircumferenceProfile |
publisher | HL7 International - US Realm Steering Committee | HL7 International / Cross-Group Projects | Values Differ
purpose |  |
status | active |
title | US Core Head Circumference Profile |
type | Observation |
url | http://hl7.org/fhir/us/core/StructureDefinition/us-core-head-circumference |
version | 4.0.0 | 8.0.1 | Values Differ

### Structure

Name | L Flags | L Card. | L Type | L Description & Constraints | R Flags | R Card. | R Type | R Description & Constraints | Comments
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Observation | C | 0..* | USCoreVitalSignsProfile | US Core Head Circumference Profile | C | 0..* | USCoreVitalSignsProfile | US Core Head Circumference Profile |
id | Σ | 0..1 | string | Logical id of this artifact | Σ | 0..1 | id | Logical id of this artifact |
meta | Σ | 0..1 | Meta | Metadata about the resource | Σ | 0..1 | Meta | Metadata about the resource |
implicitRules | ?!Σ | 0..1 | uri | A set of rules under which this content was created | ?!Σ | 0..1 | uri | A set of rules under which this content was created |
language |  | 0..1 | code | Language of the resource content Binding: ?? (preferred): A human language.
Additional Bindings | Purpose
?? | Max Binding
|  | 0..1 | code | Language of the resource content Binding: ?? (preferred): A human language.
Additional Bindings | Purpose
?? | Max Binding
| Example/preferred bindings differ at Observation.language using binding from USCoreHeadCircumferenceProfile
text |  | 0..1 | Narrative | Text summary of the resource, for human interpretation This profile does not constrain the narrative in regard to content, language, or traceability to data elements |  | 0..1 | Narrative | Text summary of the resource, for human interpretation This profile does not constrain the narrative in regard to content, language, or traceability to data elements |
contained |  | 0..* | Resource | Contained, inline Resources |  | 0..* | Resource | Contained, inline Resources |
extension |  | 0..* | Extension | Additional content defined by implementations |  | 0..* | Extension | Additional content defined by implementations |
modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored | ?! | 0..* | Extension | Extensions that cannot be ignored |
identifier | Σ | 0..* | Identifier | Business Identifier for observation | Σ | 0..* | Identifier | Business Identifier for observation |
basedOn | Σ | 0..* | Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest) | Fulfills plan, proposal or order | Σ | 0..* | Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest) | Fulfills plan, proposal or order |
partOf | Σ | 0..* | Reference(MedicationAdministration | MedicationDispense | MedicationStatement | Procedure | Immunization | ImagingStudy) | Part of referenced event | Σ | 0..* | Reference(MedicationAdministration | MedicationDispense | MedicationStatement | Procedure | Immunization | ImagingStudy) | Part of referenced event |
status | ?!S Σ | 1..1 | code | registered | preliminary | final | amended + Binding: ?? (required) | ?!S Σ | 1..1 | code | registered | preliminary | final | amended + Binding: ?? (required) |
Slices for category | S | 1..* | CodeableConcept | Classification of type of observation Slice: Unordered, Open by value:coding.code, value:coding.system Binding: ?? (preferred): Codes for high level observation categories. | S | 1..* | CodeableConcept | Classification of type of observation Slice: Unordered, Open by value:coding.code, value:coding.system Binding: ?? (preferred): Codes for high level observation categories. | Example/preferred bindings differ at Observation.category using binding from USCoreHeadCircumferenceProfile
code | S Σ | 1..1 | CodeableConcept | Head Circumference Binding: ?? (extensible): The vital sign codes from the base FHIR and US Core Vital Signs. Required Pattern: {"coding":[{"system":"http://loinc.org","code":"9843-4"}]} | S Σ | 1..1 | CodeableConcept | Head Circumference Binding: ?? (extensible): Vital sign result types Required Pattern: {"coding":[{"system":"http://loinc.org","code":"9843-4"}]} |
subject | S Σ | 1..1 | Reference(US Core Patient Profile) | Who and/or what the observation is about | S Σ | 1..1 | Reference(US Core Patient Profile) | Who and/or what the observation is about |
focus | Σ TU | 0..* | Reference(Resource) | What the observation is about, when it is not about the subject of record | Σ | 0..* | Reference(Resource) | What the observation is about, when it is not about the subject of record |
encounter | Σ | 0..1 | Reference(Encounter) | Healthcare event during which this observation is made | Σ | 0..1 | Reference(Encounter) | Healthcare event during which this observation is made |
effective[x] | S Σ C | 1..1 | dateTime S, Period | Often just a dateTime for Vital Signs | S Σ C | 1..1 | dateTime S, Period | Often just a dateTime for Vital Signs |
issued | Σ | 0..1 | instant | Date/Time this version was made available | Σ | 0..1 | instant | Date/Time this version was made available |
performer | Σ | 0..* | Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson) | Who is responsible for the observation | S Σ | 0..* | Reference(US Core Practitioner Profile | US Core Organization Profile | US Core Patient Profile | PractitionerRole | US Core CareTeam Profile | US Core RelatedPerson Profile) | Who is responsible for the observation | Elements differ in definition for mustSupport: 'false' vs 'true'
Slices for value[x] | S Σ C | 0..1 | Quantity | Vital Signs Value Slice: Unordered, Closed by type:$this Binding: ?? (extensible): Common UCUM units for recording Vital Signs. | S Σ C | 0..1 | Quantity S, CodeableConcept, string, boolean, integer, Range, Ratio, SampledData, time, dateTime, Period | Vital Signs Value Slice: Unordered, Open by type:$this Binding: ?? (extensible): Common UCUM units for recording Vital Signs. |
dataAbsentReason | S C | 0..1 | CodeableConcept | Why the result is missing Binding: ?? (extensible): Codes specifying why the result (Observation.value[x]) is missing. | S C | 0..1 | CodeableConcept | Why the result is missing Binding: ?? (extensible): Codes specifying why the result (Observation.value[x]) is missing. |
interpretation |  | 0..* | CodeableConcept | High, low, normal, etc. Binding: ?? (extensible): Codes identifying interpretations of observations. |  | 0..* | CodeableConcept | High, low, normal, etc. Binding: ?? (extensible): Codes identifying interpretations of observations. |
note |  | 0..* | Annotation | Comments about the observation |  | 0..* | Annotation | Comments about the observation |
bodySite |  | 0..1 | CodeableConcept | Observed body part Binding: ?? (example): Codes describing anatomical locations. May include laterality. |  | 0..1 | CodeableConcept | Observed body part Binding: ?? (example): Codes describing anatomical locations. May include laterality. |
method |  | 0..1 | CodeableConcept | How it was done Binding: ?? (example): Methods for simple observations. |  | 0..1 | CodeableConcept | How it was done Binding: ?? (example): Methods for simple observations. |
specimen |  | 0..1 | Reference(Specimen) | Specimen used for this observation |  | 0..1 | Reference(Specimen) | Specimen used for this observation |
device |  | 0..1 | Reference(Device | DeviceMetric) | (Measurement) Device |  | 0..1 | Reference(Device | DeviceMetric) | (Measurement) Device |
referenceRange | C | 0..* | BackboneElement | Provides guide for interpretation Constraints: obs-3 | C | 0..* | BackboneElement | Provides guide for interpretation |
id |  | 0..1 | string | Unique id for inter-element referencing |  | 0..1 | string | Unique id for inter-element referencing |
extension |  | 0..* | Extension | Additional content defined by implementations |  | 0..* | Extension | Additional content defined by implementations |
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
low | C | 0..1 | ?? | Low Range, if relevant | C | 0..1 | ?? | Low Range, if relevant |
high | C | 0..1 | ?? | High Range, if relevant | C | 0..1 | ?? | High Range, if relevant |
type |  | 0..1 | CodeableConcept | Reference range qualifier Binding: ?? (preferred): Code for the meaning of a reference range. |  | 0..1 | CodeableConcept | Reference range qualifier Binding: ?? (preferred): Code for the meaning of a reference range. | Example/preferred bindings differ at Observation.referenceRange.type using binding from USCoreHeadCircumferenceProfile
appliesTo |  | 0..* | CodeableConcept | Reference range population Binding: ?? (example): Codes identifying the population the reference range applies to. |  | 0..* | CodeableConcept | Reference range population Binding: ?? (example): Codes identifying the population the reference range applies to. |
age |  | 0..1 | Range | Applicable age range, if relevant |  | 0..1 | Range | Applicable age range, if relevant |
text |  | 0..1 | string | Text based reference range in an observation |  | 0..1 | string | Text based reference range in an observation |
hasMember | Σ | 0..* | Reference(QuestionnaireResponse | MolecularSequence | Vital Signs Profile) | Used when reporting vital signs panel components | Σ | 0..* | Reference(QuestionnaireResponse | MolecularSequence | Vital Signs Profile) | Used when reporting vital signs panel components |
derivedFrom | Σ | 0..* | Reference(DocumentReference | ImagingStudy | Media | QuestionnaireResponse | MolecularSequence | Vital Signs Profile) | Related measurements the observation is made from | Σ | 0..* | Reference(DocumentReference | ImagingStudy | Media | QuestionnaireResponse | MolecularSequence | Vital Signs Profile) | Related measurements the observation is made from |
component | S Σ C | 0..* | BackboneElement | Component observations | S Σ C | 0..* | BackboneElement | Component observations |
id |  | 0..1 | string | Unique id for inter-element referencing |  | 0..1 | string | Unique id for inter-element referencing |
extension |  | 0..* | Extension | Additional content defined by implementations |  | 0..* | Extension | Additional content defined by implementations |
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
code | S Σ | 1..1 | CodeableConcept | Type of component observation (code / type) Binding: ?? (extensible): The vital sign codes from the base FHIR and US Core Vital Signs. | S Σ | 1..1 | CodeableConcept | Coded vital sign result type Binding: ?? (extensible): Vital sign result types |
value[x] | S Σ C | 0..1 | Quantity S, CodeableConcept, string, boolean, integer, Range, Ratio, SampledData, time, dateTime, Period | Vital Sign Component Value Binding: ?? (extensible): Common UCUM units for recording Vital Signs. | S Σ C | 0..1 | Quantity S, CodeableConcept, string, boolean, integer, Range, Ratio, SampledData, time, dateTime, Period | Vital Sign Component Value Binding: ?? (extensible): Common UCUM units for recording Vital Signs. |
dataAbsentReason | S C | 0..1 | CodeableConcept | Why the component result is missing Binding: ?? (extensible): Codes specifying why the result (Observation.value[x]) is missing. | S C | 0..1 | CodeableConcept | Why the component result is missing Binding: ?? (extensible): Codes specifying why the result (Observation.value[x]) is missing. |
interpretation |  | 0..* | CodeableConcept | High, low, normal, etc. Binding: ?? (extensible): Codes identifying interpretations of observations. |  | 0..* | CodeableConcept | High, low, normal, etc. Binding: ?? (extensible): Codes identifying interpretations of observations. |
referenceRange |  | 0..* | See referenceRange (Observation) | Provides guide for interpretation of component result |  | 0..* | See referenceRange (Observation) | Provides guide for interpretation of component result |
id |  | 0..1 | string | Unique id for inter-element referencing |  | 0..1 | string | Unique id for inter-element referencing |
extension |  | 0..* | Extension | Additional content defined by implementations |  | 0..* | Extension | Additional content defined by implementations |
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
low | C | 0..1 | ?? | Low Range, if relevant | C | 0..1 | ?? | Low Range, if relevant |
high | C | 0..1 | ?? | High Range, if relevant | C | 0..1 | ?? | High Range, if relevant |
type |  | 0..1 | CodeableConcept | Reference range qualifier Binding: ?? (preferred): Code for the meaning of a reference range. |  | 0..1 | CodeableConcept | Reference range qualifier Binding: ?? (preferred): Code for the meaning of a reference range. | Example/preferred bindings differ at Observation.component.referenceRange.type using binding from USCoreHeadCircumferenceProfile
appliesTo |  | 0..* | CodeableConcept | Reference range population Binding: ?? (example): Codes identifying the population the reference range applies to. |  | 0..* | CodeableConcept | Reference range population Binding: ?? (example): Codes identifying the population the reference range applies to. |
age |  | 0..1 | Range | Applicable age range, if relevant |  | 0..1 | Range | Applicable age range, if relevant |
text |  | 0..1 | string | Text based reference range in an observation |  | 0..1 | string | Text based reference range in an observation |
Documentation for this format