This structure is derived from Composition.

Summary

Mandatory: 4 elements
Fixed Value: 1 element
Prohibited: 1 element

Extensions

This structure refers to these extensions:

• http://hl7.org/fhir/StructureDefinition/cqm-ValidityPeriod

This indicates the differences between this profile and the base Composition structure.

Name	Flags	Card.	Type	Description & Constraints
Composition		0..*	Composition	A set of resources composed into a single coherent clinical statement with clinical attestation
Slices for extension				Content/Rules for all slices
extension:ValidityPeriod		1..1	dateTime	The validity of the catalog URL: http://hl7.org/fhir/StructureDefinition/cqm-ValidityPeriod
type		1..1	CodeableConcept	The type of document - a Catalog Fixed Value: As shown
text		1..1	string	Plain text representation of the concept Fixed Value: Catalog
category		1..1	CodeableConcept	The Content of the section Binding: Catalog Type (example): The type of catalog.
subject		0..0
date		1..1	dateTime	When the Catalog was created
section		0..*	BackboneElement	Composition is broken into sections
Documentation for this format

This provides the consolidated view (aka snapshot) of the profile after applying the changes in this profile to the base Composition structure.

Name	Flags	Card.	Type	Description & Constraints
Composition		0..*	Composition	A set of resources composed into a single coherent clinical statement with clinical attestation
id	Σ	0..1	id	Logical id of this artifact
meta	Σ	0..1	Meta	Metadata about the resource
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
language		0..1	code	Language of the resource content Binding: All Languages (required): IETF language tag for a human language Additional Bindings Purpose Common Languages Starter
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
contained		0..*	Resource	Contained, inline Resources
Slices for extension		1..*	Extension	Extension Slice: Unordered, Open by value:url
extension:ValidityPeriod		1..1	dateTime	The validity of the catalog URL: http://hl7.org/fhir/StructureDefinition/cqm-ValidityPeriod
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored
url	Σ	0..1	uri	Canonical identifier for this Composition, represented as a URI (globally unique)
identifier	Σ	0..*	Identifier	Version-independent identifier for the Composition
version	Σ	0..1	string	An explicitly assigned identifier of a variation of the content in the Composition
status	?!Σ	1..1	code	registered | partial | preliminary | final | amended | corrected | appended | cancelled | entered-in-error | deprecated | unknown Binding: Composition Status (required): The workflow/clinical status of the composition.
type	Σ	1..1	CodeableConcept	The type of document - a Catalog Binding: FHIR Document Type Codes (preferred): Type of a composition. Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		0..0	Coding	Code defined by a terminology system
text		1..1	string	Plain text representation of the concept Fixed Value: Catalog
category	Σ	1..1	CodeableConcept	The Content of the section Binding: Catalog Type (example): The type of catalog.
encounter	Σ	0..1	Reference(Encounter)	Context of the Composition
date	Σ	1..1	dateTime	When the Catalog was created
useContext	Σ	0..*	UsageContext	The context that the content is intended to support
author	Σ	1..*	Reference(Practitioner | PractitionerRole | CareTeam | Device | Patient | RelatedPerson | Organization)	Who and/or what authored the composition
name	Σ	0..1	string	Name for this Composition (computer friendly)
title	Σ	1..1	string	Human Readable name/title
note		0..*	Annotation	For any additional notes
attester		0..*	BackboneElement	Attests to accuracy of composition
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
mode		1..1	CodeableConcept	personal | professional | legal | official Binding: Composition Attestation Mode (preferred): The way in which a person authenticated a composition.
time		0..1	dateTime	When the composition was attested
party		0..1	Reference(Patient | RelatedPerson | Practitioner | PractitionerRole | Organization)	Who attested the composition
custodian	Σ	0..1	Reference(Organization)	Organization which maintains the composition
relatesTo		0..*	BackboneElement	Relationships to other compositions/documents
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
type		1..1	CodeableConcept	documentation | justification | citation | predecessor | successor | derived-from | depends-on | composed-of | part-of | amends | amended-with | appends | appended-with | cites | cited-by | comments-on | comment-in | contains | contained-in | corrects | correction-in | replaces | replaced-with | retracts | retracted-by | signs | similar-to | supports | supported-with | transforms | transformed-into | transformed-with | documents | specification-of | created-with | cite-as | reprint | reprint-of | summarizes Binding: Artifact Relationship Type (extensible): The type of relationship to the related artifact.
target[x]		1..1		The artifact that is related to this Composition
targetUri			uri
targetAttachment			Attachment
targetCanonical			canonical(Resource)
targetReference			Reference(Resource)
targetMarkdown			markdown
event	Σ	0..*	BackboneElement	The clinical service(s) being documented
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
period	Σ	0..1	Period	The period covered by the documentation
detail	Σ	0..*	CodeableReference(Resource)	The event(s) being documented, as code(s), reference(s), or both Binding: v3 Code System ActCode (example): This list of codes represents the main clinical acts being documented.
section	C	0..*	BackboneElement	Composition is broken into sections
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
title		0..1	string	Label for section (e.g. for ToC)
code		0..1	CodeableConcept	Classification of section (recommended) Binding: Document Section Codes (example): Classification of a section of a composition/document.
author		0..*	Reference(Practitioner | PractitionerRole | CareTeam | Device | Patient | RelatedPerson | Organization)	Who and/or what authored the section, when the section is authored by someone other than the composition.author
focus		0..1	Reference(Resource)	Who/what the section is about, when it is not about the subject of composition
text	C	0..1	Narrative	Text summary of the section, for human interpretation This profile does not constrain the narrative in regard to content, language, or traceability to data elements
orderedBy		0..1	CodeableConcept	Order of section entries Binding: List Order Codes (preferred): What order applies to the items in the entry.
entry	C	0..*	Reference(Resource)	A reference to data that supports this section
emptyReason	C	0..1	CodeableConcept	Why the section is empty Binding: List Empty Reasons (preferred): If a section is empty, why it is empty.
section		0..*	See section (Composition)	Nested Section
Documentation for this format

<!-- ProfileForCatalog -->

<Composition xmlns="http://hl7.org/fhir"
>
  <!-- from Element: extension -->
 <id value="[id]"/><!-- 0..1 Logical id of this artifact -->
 <meta><!-- I 0..1 Meta Metadata about the resource --></meta>
 <implicitRules value="[uri]"/><!-- I 0..1 A set of rules under which this content was created -->
 <language value="[code]"/><!-- I 0..1 Language of the resource content   -->
 <text><!-- I 0..1 Narrative 
     Text summary of the resource, for human interpretation --></text>
 <contained><!-- 0..* Resource Contained, inline Resources --></contained>
 <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored  --></modifierExtension>
 <url value="[uri]"/><!-- I 0..1 Canonical identifier for this Composition, represented as a URI (globally unique) -->
 <identifier><!-- I 0..* Identifier 
     Version-independent identifier for the Composition --></identifier>
 <version value="[string]"/><!-- I 0..1 
     An explicitly assigned identifier of a variation of the content in the Composition -->
 <status value="[code]"/><!-- I 1..1 registered | partial | preliminary | final | amended | corrected | appended | cancelled | entered-in-error | deprecated | unknown   -->
 <type><!-- I 1..1 CodeableConcept The type of document - a Catalog   --></type>
 <category><!-- I 1..1 CodeableConcept The Content of the section   --></category>
 <subject><!-- I 0..0 Reference(Resource) 
     Who and/or what the composition is about --></subject>
 <encounter><!-- I 0..1 Reference(Encounter) Context of the Composition --></encounter>
 <date value="[dateTime]"/><!-- I 1..1 When the Catalog was created -->
 <useContext><!-- I 0..* UsageContext 
     The context that the content is intended to support --></useContext>
 <author><!-- I 1..* Reference(Practitioner) 
     Who and/or what authored the composition --></author>
 <name value="[string]"/><!-- I 0..1 Name for this Composition (computer friendly) -->
 <title value="[string]"/><!-- I 1..1 Human Readable name/title -->
 <note><!-- I 0..* Annotation For any additional notes --></note>
 <attester> I 0..* BackboneElement  <!-- I 0..* Attests to accuracy of composition -->
  <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <mode><!-- I 1..1 CodeableConcept personal | professional | legal | official   --></mode>
  <time value="[dateTime]"/><!-- I 0..1 When the composition was attested -->
  <party><!-- I 0..1 Reference(Patient) 
      Who attested the composition --></party>
 </attester>
 <custodian><!-- I 0..1 Reference(Organization) 
     Organization which maintains the composition --></custodian>
 <relatesTo> I 0..* BackboneElement  <!-- I 0..* Relationships to other compositions/documents -->
  <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <type><!-- I 1..1 CodeableConcept documentation | justification | citation | predecessor | successor | derived-from | depends-on | composed-of | part-of | amends | amended-with | appends | appended-with | cites | cited-by | comments-on | comment-in | contains | contained-in | corrects | correction-in | replaces | replaced-with | retracts | retracted-by | signs | similar-to | supports | supported-with | transforms | transformed-into | transformed-with | documents | specification-of | created-with | cite-as | reprint | reprint-of | summarizes    --></type>
  <target[x]><!-- I 1..1 uri|Attachment|canonical|Reference(Resource)|
    markdown The artifact that is related to this Composition --></target[x]>
 </relatesTo>
 <event> I 0..* BackboneElement  <!-- I 0..* The clinical service(s) being documented -->
  <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <period><!-- I 0..1 Period 
      The period covered by the documentation --></period>
  <detail><!-- I 0..* CodeableReference The event(s) being documented, as code(s), reference(s), or both    --></detail>
 </event>
 <section> I 0..* BackboneElement  <!-- I 0..* Composition is broken into sections -->
  <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <title value="[string]"/><!-- I 0..1 Label for section (e.g. for ToC) -->
  <code><!-- I 0..1 CodeableConcept Classification of section (recommended)   --></code>
  <author><!-- I 0..* Reference(Practitioner) 
      Who and/or what authored the section, when the section is authored by someone other than the composition.author --></author>
  <focus><!-- I 0..1 Reference(Resource) 
      Who/what the section is about, when it is not about the subject of composition --></focus>
  <text><!-- I 0..1 Narrative 
      Text summary of the section, for human interpretation --></text>
  <orderedBy><!-- I 0..1 CodeableConcept Order of section entries   --></orderedBy>
  <entry><!-- I 0..* Reference(Resource) 
      A reference to data that supports this section --></entry>
  <emptyReason><!-- I 0..1 CodeableConcept Why the section is empty   --></emptyReason>
  <section><!-- See http://hl7.org/fhir/StructureDefinition/Composition#Composition.section  Nested Section --></section>
 </section>
</Composition>

{ // ProfileForCatalog
  // from Element: extension
    "meta" : { Meta }, // IMetadata about the resource
    "implicitRules" : "<uri>", // IA set of rules under which this content was created
    "language" : "<code>", // ILanguage of the resource content
    "text" : { Narrative }, // IText summary of the resource, for human interpretation
    "contained" : [{ Resource }], //Contained, inline Resources
    "extension" : [ //  sliced by value:url  in the specified order, Open 
      { // The validity of the catalog // I R! 
        // from Element: extension
      }
    ],
    "modifierExtension" : [{ Extension }], // IExtensions that cannot be ignored
    "url" : "<uri>", // ICanonical identifier for this Composition, represented as a URI (globally unique)
    "identifier" : [{ Identifier }], // IVersion-independent identifier for the Composition
    "version" : "<string>", // IAn explicitly assigned identifier of a variation of the content in the Composition
    "status" : "<code>", // I R! registered | partial | preliminary | final | amended | corrected | appended | cancelled | entered-in-error | deprecated | unknown
    "type" : { CodeableConcept }, // I R! 
    "category" : { CodeableConcept }, // I R! The Content of the section
    "encounter" : { Reference(Encounter) }, // IContext of the Composition
    "date" : "<dateTime>", // I R! When the Catalog was created
    "useContext" : [{ UsageContext }], // IThe context that the content is intended to support
    "author" : [{ Reference(Practitioner) }], // I R! Who and/or what authored the composition
    "name" : "<string>", // IName for this Composition (computer friendly)
    "title" : "<string>", // I R! Human Readable name/title
    "note" : [{ Annotation }], // IFor any additional notes
    "attester" : [{ BackboneElement }], // IAttests to accuracy of composition
    "custodian" : { Reference(Organization) }, // IOrganization which maintains the composition
    "relatesTo" : [{ BackboneElement }], // IRelationships to other compositions/documents
    "event" : [{ BackboneElement }], // IThe clinical service(s) being documented
    "section" : [{ BackboneElement }], // IComposition is broken into sections
  }

Summary

Mandatory: 4 elements
Fixed Value: 1 element
Prohibited: 1 element

Extensions

This structure refers to these extensions:

• http://hl7.org/fhir/StructureDefinition/cqm-ValidityPeriod

This provides the consolidated view (aka snapshot) of the profile after applying the changes in this profile to the base Composition structure.

Name	Flags	Card.	Type	Description & Constraints
Composition		0..*	Composition	A set of resources composed into a single coherent clinical statement with clinical attestation
id	Σ	0..1	id	Logical id of this artifact
meta	Σ	0..1	Meta	Metadata about the resource
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
language		0..1	code	Language of the resource content Binding: All Languages (required): IETF language tag for a human language Additional Bindings Purpose Common Languages Starter
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
contained		0..*	Resource	Contained, inline Resources
Slices for extension		1..*	Extension	Extension Slice: Unordered, Open by value:url
extension:ValidityPeriod		1..1	dateTime	The validity of the catalog URL: http://hl7.org/fhir/StructureDefinition/cqm-ValidityPeriod
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored
url	Σ	0..1	uri	Canonical identifier for this Composition, represented as a URI (globally unique)
identifier	Σ	0..*	Identifier	Version-independent identifier for the Composition
version	Σ	0..1	string	An explicitly assigned identifier of a variation of the content in the Composition
status	?!Σ	1..1	code	registered | partial | preliminary | final | amended | corrected | appended | cancelled | entered-in-error | deprecated | unknown Binding: Composition Status (required): The workflow/clinical status of the composition.
type	Σ	1..1	CodeableConcept	The type of document - a Catalog Binding: FHIR Document Type Codes (preferred): Type of a composition. Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		0..0	Coding	Code defined by a terminology system
text		1..1	string	Plain text representation of the concept Fixed Value: Catalog
category	Σ	1..1	CodeableConcept	The Content of the section Binding: Catalog Type (example): The type of catalog.
encounter	Σ	0..1	Reference(Encounter)	Context of the Composition
date	Σ	1..1	dateTime	When the Catalog was created
useContext	Σ	0..*	UsageContext	The context that the content is intended to support
author	Σ	1..*	Reference(Practitioner | PractitionerRole | CareTeam | Device | Patient | RelatedPerson | Organization)	Who and/or what authored the composition
name	Σ	0..1	string	Name for this Composition (computer friendly)
title	Σ	1..1	string	Human Readable name/title
note		0..*	Annotation	For any additional notes
attester		0..*	BackboneElement	Attests to accuracy of composition
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
mode		1..1	CodeableConcept	personal | professional | legal | official Binding: Composition Attestation Mode (preferred): The way in which a person authenticated a composition.
time		0..1	dateTime	When the composition was attested
party		0..1	Reference(Patient | RelatedPerson | Practitioner | PractitionerRole | Organization)	Who attested the composition
custodian	Σ	0..1	Reference(Organization)	Organization which maintains the composition
relatesTo		0..*	BackboneElement	Relationships to other compositions/documents
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
type		1..1	CodeableConcept	documentation | justification | citation | predecessor | successor | derived-from | depends-on | composed-of | part-of | amends | amended-with | appends | appended-with | cites | cited-by | comments-on | comment-in | contains | contained-in | corrects | correction-in | replaces | replaced-with | retracts | retracted-by | signs | similar-to | supports | supported-with | transforms | transformed-into | transformed-with | documents | specification-of | created-with | cite-as | reprint | reprint-of | summarizes Binding: Artifact Relationship Type (extensible): The type of relationship to the related artifact.
target[x]		1..1		The artifact that is related to this Composition
targetUri			uri
targetAttachment			Attachment
targetCanonical			canonical(Resource)
targetReference			Reference(Resource)
targetMarkdown			markdown
event	Σ	0..*	BackboneElement	The clinical service(s) being documented
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
period	Σ	0..1	Period	The period covered by the documentation
detail	Σ	0..*	CodeableReference(Resource)	The event(s) being documented, as code(s), reference(s), or both Binding: v3 Code System ActCode (example): This list of codes represents the main clinical acts being documented.
section	C	0..*	BackboneElement	Composition is broken into sections
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
title		0..1	string	Label for section (e.g. for ToC)
code		0..1	CodeableConcept	Classification of section (recommended) Binding: Document Section Codes (example): Classification of a section of a composition/document.
author		0..*	Reference(Practitioner | PractitionerRole | CareTeam | Device | Patient | RelatedPerson | Organization)	Who and/or what authored the section, when the section is authored by someone other than the composition.author
focus		0..1	Reference(Resource)	Who/what the section is about, when it is not about the subject of composition
text	C	0..1	Narrative	Text summary of the section, for human interpretation This profile does not constrain the narrative in regard to content, language, or traceability to data elements
orderedBy		0..1	CodeableConcept	Order of section entries Binding: List Order Codes (preferred): What order applies to the items in the entry.
entry	C	0..*	Reference(Resource)	A reference to data that supports this section
emptyReason	C	0..1	CodeableConcept	Why the section is empty Binding: List Empty Reasons (preferred): If a section is empty, why it is empty.
section		0..*	See section (Composition)	Nested Section
Documentation for this format

<!-- ProfileForCatalog -->

<Composition xmlns="http://hl7.org/fhir"
>
  <!-- from Element: extension -->
 <id value="[id]"/><!-- 0..1 Logical id of this artifact -->
 <meta><!-- I 0..1 Meta Metadata about the resource --></meta>
 <implicitRules value="[uri]"/><!-- I 0..1 A set of rules under which this content was created -->
 <language value="[code]"/><!-- I 0..1 Language of the resource content   -->
 <text><!-- I 0..1 Narrative 
     Text summary of the resource, for human interpretation --></text>
 <contained><!-- 0..* Resource Contained, inline Resources --></contained>
 <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored  --></modifierExtension>
 <url value="[uri]"/><!-- I 0..1 Canonical identifier for this Composition, represented as a URI (globally unique) -->
 <identifier><!-- I 0..* Identifier 
     Version-independent identifier for the Composition --></identifier>
 <version value="[string]"/><!-- I 0..1 
     An explicitly assigned identifier of a variation of the content in the Composition -->
 <status value="[code]"/><!-- I 1..1 registered | partial | preliminary | final | amended | corrected | appended | cancelled | entered-in-error | deprecated | unknown   -->
 <type><!-- I 1..1 CodeableConcept The type of document - a Catalog   --></type>
 <category><!-- I 1..1 CodeableConcept The Content of the section   --></category>
 <subject><!-- I 0..0 Reference(Resource) 
     Who and/or what the composition is about --></subject>
 <encounter><!-- I 0..1 Reference(Encounter) Context of the Composition --></encounter>
 <date value="[dateTime]"/><!-- I 1..1 When the Catalog was created -->
 <useContext><!-- I 0..* UsageContext 
     The context that the content is intended to support --></useContext>
 <author><!-- I 1..* Reference(Practitioner) 
     Who and/or what authored the composition --></author>
 <name value="[string]"/><!-- I 0..1 Name for this Composition (computer friendly) -->
 <title value="[string]"/><!-- I 1..1 Human Readable name/title -->
 <note><!-- I 0..* Annotation For any additional notes --></note>
 <attester> I 0..* BackboneElement  <!-- I 0..* Attests to accuracy of composition -->
  <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <mode><!-- I 1..1 CodeableConcept personal | professional | legal | official   --></mode>
  <time value="[dateTime]"/><!-- I 0..1 When the composition was attested -->
  <party><!-- I 0..1 Reference(Patient) 
      Who attested the composition --></party>
 </attester>
 <custodian><!-- I 0..1 Reference(Organization) 
     Organization which maintains the composition --></custodian>
 <relatesTo> I 0..* BackboneElement  <!-- I 0..* Relationships to other compositions/documents -->
  <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <type><!-- I 1..1 CodeableConcept documentation | justification | citation | predecessor | successor | derived-from | depends-on | composed-of | part-of | amends | amended-with | appends | appended-with | cites | cited-by | comments-on | comment-in | contains | contained-in | corrects | correction-in | replaces | replaced-with | retracts | retracted-by | signs | similar-to | supports | supported-with | transforms | transformed-into | transformed-with | documents | specification-of | created-with | cite-as | reprint | reprint-of | summarizes    --></type>
  <target[x]><!-- I 1..1 uri|Attachment|canonical|Reference(Resource)|
    markdown The artifact that is related to this Composition --></target[x]>
 </relatesTo>
 <event> I 0..* BackboneElement  <!-- I 0..* The clinical service(s) being documented -->
  <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <period><!-- I 0..1 Period 
      The period covered by the documentation --></period>
  <detail><!-- I 0..* CodeableReference The event(s) being documented, as code(s), reference(s), or both    --></detail>
 </event>
 <section> I 0..* BackboneElement  <!-- I 0..* Composition is broken into sections -->
  <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <title value="[string]"/><!-- I 0..1 Label for section (e.g. for ToC) -->
  <code><!-- I 0..1 CodeableConcept Classification of section (recommended)   --></code>
  <author><!-- I 0..* Reference(Practitioner) 
      Who and/or what authored the section, when the section is authored by someone other than the composition.author --></author>
  <focus><!-- I 0..1 Reference(Resource) 
      Who/what the section is about, when it is not about the subject of composition --></focus>
  <text><!-- I 0..1 Narrative 
      Text summary of the section, for human interpretation --></text>
  <orderedBy><!-- I 0..1 CodeableConcept Order of section entries   --></orderedBy>
  <entry><!-- I 0..* Reference(Resource) 
      A reference to data that supports this section --></entry>
  <emptyReason><!-- I 0..1 CodeableConcept Why the section is empty   --></emptyReason>
  <section><!-- See http://hl7.org/fhir/StructureDefinition/Composition#Composition.section  Nested Section --></section>
 </section>
</Composition>

{ // ProfileForCatalog
  // from Element: extension
    "meta" : { Meta }, // IMetadata about the resource
    "implicitRules" : "<uri>", // IA set of rules under which this content was created
    "language" : "<code>", // ILanguage of the resource content
    "text" : { Narrative }, // IText summary of the resource, for human interpretation
    "contained" : [{ Resource }], //Contained, inline Resources
    "extension" : [ //  sliced by value:url  in the specified order, Open 
      { // The validity of the catalog // I R! 
        // from Element: extension
      }
    ],
    "modifierExtension" : [{ Extension }], // IExtensions that cannot be ignored
    "url" : "<uri>", // ICanonical identifier for this Composition, represented as a URI (globally unique)
    "identifier" : [{ Identifier }], // IVersion-independent identifier for the Composition
    "version" : "<string>", // IAn explicitly assigned identifier of a variation of the content in the Composition
    "status" : "<code>", // I R! registered | partial | preliminary | final | amended | corrected | appended | cancelled | entered-in-error | deprecated | unknown
    "type" : { CodeableConcept }, // I R! 
    "category" : { CodeableConcept }, // I R! The Content of the section
    "encounter" : { Reference(Encounter) }, // IContext of the Composition
    "date" : "<dateTime>", // I R! When the Catalog was created
    "useContext" : [{ UsageContext }], // IThe context that the content is intended to support
    "author" : [{ Reference(Practitioner) }], // I R! Who and/or what authored the composition
    "name" : "<string>", // IName for this Composition (computer friendly)
    "title" : "<string>", // I R! Human Readable name/title
    "note" : [{ Annotation }], // IFor any additional notes
    "attester" : [{ BackboneElement }], // IAttests to accuracy of composition
    "custodian" : { Reference(Organization) }, // IOrganization which maintains the composition
    "relatesTo" : [{ BackboneElement }], // IRelationships to other compositions/documents
    "event" : [{ BackboneElement }], // IThe clinical service(s) being documented
    "section" : [{ BackboneElement }], // IComposition is broken into sections
  }