The patient’s health problem or condition that is the subject of the alert. This could involve a patient’s problem, condition or diagnosis that is seen as a contraindication in prescribing medication or which has to be taken into account when shaping diagnostic and therapeutic policy. This can be in the patient’s own interest, or it can involve a problem or disorder that can make the patient a risk to their surroundings, such as an infection hazard. These are references to conditions included on the patient’s problem list. If there is a contraindication, the code system G-Standard Contraindications (Table 40) from the ProblemNameCodeList of the ConcernTransfer information model should be used.

Indicates the type of alert, meaning a rough description of the cause or origin of the warning.

Indicates the type of alert, meaning a rough description of the cause or origin of the warning.

A warning, other than a condition or problem. For example, a patient can be given an ‘Aggressive patient' alert. The warning can be entered in code (there are codes for frequently used alerts), but seeing the dynamic nature of the warnings cf. SARS and Ebola, these alerts will often be entered as free text.

The date and time at which the described condition was entered as a warning. This can be an exact date and time, or a rough indication of the date (such as only the year, or the month and the year).

Prospective warnings of potential issues when providing care to the patient.

A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content.

Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element.

This element is labelled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation.

An Extension

The patient’s health problem or condition that is the subject of the alert. This could involve a patient’s problem, condition or diagnosis that is seen as a contraindication in prescribing medication or which has to be taken into account when shaping diagnostic and therapeutic policy. This can be in the patient’s own interest, or it can involve a problem or disorder that can make the patient a risk to their surroundings, such as an infection hazard. These are references to conditions included on the patient’s problem list. If there is a contraindication, the code system G-Standard Contraindications (Table 40) from the ProblemNameCodeList of the ConcernTransfer information model should be used.

Source of the definition for the extension code - a logical name or a URL.

The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).

May be used to represent additional information that is not part of the basic definition of the resource, and that modifies the understanding of the element that contains it. Usually modifier elements provide negation or qualification. In order 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 is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

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.

Identifier assigned to the flag for external use (outside the FHIR environment).

Supports basic workflow.

This element is labeled as a modifier because the status contains codes that mark the resource as not currently valid.

Indicates whether this flag is active and needs to be displayed to a user, or whether it is no longer needed or entered in error.

Indicates the type of alert, meaning a rough description of the cause or origin of the warning.

Indicates the type of alert, meaning a rough description of the cause or origin of the warning.

A warning, other than a condition or problem. For example, a patient can be given an ‘Aggressive patient' alert. The warning can be entered in code (there are codes for frequently used alerts), but seeing the dynamic nature of the warnings cf. SARS and Ebola, these alerts will often be entered as free text.

If non coded, use CodeableConcept.text. This element should always be included in the narrative.

The patient, location, group , organization , or practitioner, etc. this is about record this flag is associated with.

An Extension

Optional Extension Element - found in all resources.

This alert is only relevant during the encounter.

If both Flag.encounter and Flag.period are valued, then Flag.period.start shall not be before Encounter.period.start and Flag.period.end shall not be after Encounter.period.end.

The person, organization or device that created the flag.

An Extension

Optional Extension Element - found in all resources.

Prospective warnings of potential issues when providing care to the patient.

The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.

The only time that a resource does not have an id is when it is being submitted to the server using a create operation.

The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content may not always be associated with version changes to the resource.

A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content.

Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element.

This element is labelled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation.

The base language in which the resource is written.

Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).

A human language.

A human-readable narrative that contains a summary of the resource, and may be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.

Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded in formation is added later.

These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.

This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again.

An Extension

The patient’s health problem or condition that is the subject of the alert. This could involve a patient’s problem, condition or diagnosis that is seen as a contraindication in prescribing medication or which has to be taken into account when shaping diagnostic and therapeutic policy. This can be in the patient’s own interest, or it can involve a problem or disorder that can make the patient a risk to their surroundings, such as an infection hazard. These are references to conditions included on the patient’s problem list. If there is a contraindication, the code system G-Standard Contraindications (Table 40) from the ProblemNameCodeList of the ConcernTransfer information model should be used.

unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

May be used to represent additional information that is not part of the basic definition of the element. In order 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 is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

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.

Source of the definition for the extension code - a logical name or a URL.

The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).

May be used to represent additional information that is not part of the basic definition of the resource, and that modifies the understanding of the element that contains it. Usually modifier elements provide negation or qualification. In order 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 is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

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.

Identifier assigned to the flag for external use (outside the FHIR environment).

Supports basic workflow.

This element is labeled as a modifier because the status contains codes that mark the resource as not currently valid.

Indicates whether this flag is active and needs to be displayed to a user, or whether it is no longer needed or entered in error.

Indicates the type of alert, meaning a rough description of the cause or origin of the warning.

Indicates the type of alert, meaning a rough description of the cause or origin of the warning.

A warning, other than a condition or problem. For example, a patient can be given an ‘Aggressive patient' alert. The warning can be entered in code (there are codes for frequently used alerts), but seeing the dynamic nature of the warnings cf. SARS and Ebola, these alerts will often be entered as free text.

If non coded, use CodeableConcept.text. This element should always be included in the narrative.

The patient, location, group , organization , or practitioner, etc. this is about record this flag is associated with.

unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

An Extension

Optional Extension Element - found in all resources.

A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

An identifier for the other resource. This is used when there is no way to reference the other resource directly, either because the entity is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

Plain text narrative that identifies the resource in addition to the resource reference.

This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

The period of time from the activation of the flag to inactivation of the flag. If the flag is active, the end of the period should be unspecified.

unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

May be used to represent additional information that is not part of the basic definition of the element. In order 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 is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

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.

The date and time at which the described condition was entered as a warning. This can be an exact date and time, or a rough indication of the date (such as only the year, or the month and the year).

If the low element is missing, the meaning is that the low boundary is not known.

The end of the period. If the end of the period is missing, it means that the period is ongoing. The start may be in the past, and the end date in the future, which means that period is expected/planned to end at that time.

The high value includes any matching date/time. i.e. 2012-02-03T10:00:00 is in a period that has a end value of 2012-02-03.

This alert is only relevant during the encounter.

If both Flag.encounter and Flag.period are valued, then Flag.period.start shall not be before Encounter.period.start and Flag.period.end shall not be after Encounter.period.end.

The person, organization or device that created the flag.

unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

An Extension

Optional Extension Element - found in all resources.

A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

An identifier for the other resource. This is used when there is no way to reference the other resource directly, either because the entity is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

Plain text narrative that identifies the resource in addition to the resource reference.

This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.