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Care Plan Profile

Canonical../StructureDefinition/nexus-emr-core-careplan
Statusdraft (experimental) · 1.26.0
BaseCarePlan (constraint)
SourceFSH · JSON

Nexus EMR profile for CarePlan -- the management plan tying goals, conditions and activities together (CDM flowsheets, care gaps). First pass: status/intent, category, goal/addresses linkage, minimal activity. Closed to SMART apps pending an exposure decision.

Elements / Details

Every element this profile touches, with its full definition. Element names in the tables link here.

CarePlan

Short Nexus EMR Care Plan Core
Definition Describes the intention of how one or more practitioners intend to deliver care for a particular patient, group or community for a period of time, possibly limited to care for a specific condition or set of conditions.
Cardinality 0..*
Invariants dom-2, dom-3, dom-4, dom-5, dom-6, nexus-note-extension-not-where-native
Also called Care Team

CarePlan.id

Short Logical id of this artifact
Definition The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.
Comments The only time that a resource does not have an id is when it is being submitted to the server using a create operation.
Cardinality 0..1
Type http://hl7.org/fhirpath/System.String

CarePlan.meta

Short Metadata about the resource
Definition The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.
Cardinality 0..1
Type Meta
Invariants ele-1

CarePlan.implicitRules

Short A set of rules under which this content was created
Definition A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.
Comments 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. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.
Cardinality 0..1
Type uri
Modifier yes — This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation
Invariants ele-1

CarePlan.language

Short Language of the resource content
Definition The base language in which the resource is written.
Comments 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).
Cardinality 0..1
Type code
Binding languages (preferred)
Invariants ele-1

CarePlan.text

Short Text summary of the resource, for human interpretation
Definition A human-readable narrative that contains a summary of the resource and can 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.
Comments 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 information is added later.
Cardinality 0..1
Type Narrative
Invariants ele-1
Also called narrative, html, xhtml, display

CarePlan.contained

Short Contained, inline Resources
Definition 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.
Comments 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. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels.
Cardinality 0..*
Type Resource
Also called inline resources, anonymous resources, contained resources

CarePlan.extension

Short Additional content defined by implementations
Definition May be used to represent additional information that is not part of the basic definition of the resource. 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.
Comments 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.
Cardinality 0..*
Type Extension
Invariants ele-1, ext-1
Also called extensions, user content

CarePlan.modifierExtension

Short Extensions that cannot be ignored
Definition 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 and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).
Requirements Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.
Comments 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.
Cardinality 0..*
Type Extension
Modifier yes — Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
Invariants ele-1, ext-1
Also called extensions, user content

CarePlan.identifier

Short External Ids for this plan
Definition Business identifiers assigned to this care plan by the performer or other systems which remain constant as the resource is updated and propagates from server to server.
Requirements Allows identification of the care plan as it is known by various participating systems and in a way that remains consistent across servers.
Comments This is a business identifier, not a resource identifier (see discussion). It is best practice for the identifier to only appear on a single resource instance, however business practices may occasionally dictate that multiple resource instances with the same identifier can exist - possibly even with different resource types. For example, multiple Patient and a Person resource instance might share the same social insurance number.
Cardinality 0..*
Type Identifier
Invariants ele-1

CarePlan.instantiatesCanonical

Short Instantiates FHIR protocol or definition
Definition The URL pointing to a FHIR-defined protocol, guideline, questionnaire or other definition that is adhered to in whole or in part by this CarePlan.
Cardinality 0..*
Type canonical
Invariants ele-1

CarePlan.instantiatesUri

Short Instantiates external protocol or definition
Definition The URL pointing to an externally maintained protocol, guideline, questionnaire or other definition that is adhered to in whole or in part by this CarePlan.
Comments This might be an HTML page, PDF, etc. or could just be a non-resolvable URI identifier.
Cardinality 0..*
Type uri
Invariants ele-1

CarePlan.basedOn

Short Fulfills CarePlan
Definition A care plan that is fulfilled in whole or in part by this care plan.
Requirements Allows tracing of the care plan and tracking whether proposals/recommendations were acted upon.
Cardinality 0..*
Type Reference(CarePlan)
Invariants ele-1
Also called fulfills

CarePlan.replaces

Short CarePlan replaced by this CarePlan
Definition Completed or terminated care plan whose function is taken by this new care plan.
Requirements Allows tracing the continuation of a therapy or administrative process instantiated through multiple care plans.
Comments The replacement could be because the initial care plan was immediately rejected (due to an issue) or because the previous care plan was completed, but the need for the action described by the care plan remains ongoing.
Cardinality 0..*
Type Reference(CarePlan)
Invariants ele-1
Also called supersedes

CarePlan.partOf

Short Part of referenced CarePlan
Definition A larger care plan of which this particular care plan is a component or step.
Comments Each care plan is an independent request, such that having a care plan be part of another care plan can cause issues with cascading statuses. As such, this element is still being discussed.
Cardinality 0..*
Type Reference(CarePlan)
Invariants ele-1

CarePlan.status

Short draft | active | on-hold | revoked | completed | entered-in-error | unknown
Definition Indicates whether the plan is currently being acted upon, represents future intentions or is now a historical record.
Requirements Allows clinicians to determine whether the plan is actionable or not.
Comments This is a modifier element. A draft plan that is being SUGGESTED rides in the transaction Bundle contained in its review Task, like every other suggested resource.
Cardinality 1..1
Type code
Must Support yes
Modifier yes — This element is labeled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
Binding request-status (required)
Invariants ele-1

CarePlan.intent

Short proposal | plan | order | option -- normally plan
Definition Indicates the level of authority/intentionality associated with the care plan and where the care plan fits into the workflow chain.
Requirements Proposals/recommendations, plans and orders all use the same structure and can exist in the same fulfillment chain.
Comments This element is labeled as a modifier because the intent alters when and how the resource is actually applicable.
Cardinality 1..1
Type code
Must Support yes
Modifier yes — This element changes the interpretation of all descriptive attributes. For example "the time the request is recommended to occur" vs. "the time the request is authorized to occur" or "who is recommended to perform the request" vs. "who is authorized to perform the request"
Binding care-plan-intent (required)
Invariants ele-1

CarePlan.category

Short What kind of plan (e.g. the managed condition's domain)
Definition Identifies what "kind" of plan this is to support differentiation between multiple co-existing plans; e.g. "Home health", "psychiatric", "asthma", "disease management", "wellness plan", etc.
Requirements Used for filtering what plan(s) are retrieved and displayed to different types of users.
Comments There may be multiple axes of categorization and one plan may serve multiple purposes. In some cases, this may be redundant with references to CarePlan.concern.
Cardinality 0..*
Type CodeableConcept
Must Support yes
Binding care-plan-category (example)
Invariants ele-1

CarePlan.title

Short Human-friendly name for the care plan
Definition Human-friendly name for the care plan.
Cardinality 0..1
Type string
Invariants ele-1

CarePlan.description

Short Summary of nature of plan
Definition A description of the scope and nature of the plan.
Requirements Provides more detail than conveyed by category.
Cardinality 0..1
Type string
Invariants ele-1

CarePlan.subject

Short The patient
Definition Identifies the patient or group whose intended care is described by the plan.
Cardinality 1..1
Type Reference(Patient Profile)
Must Support yes
Invariants ele-1
Also called patient

CarePlan.encounter

Short Encounter created as part of
Definition The Encounter during which this CarePlan was created or to which the creation of this record is tightly associated.
Comments This will typically be the encounter the event occurred within, but some activities may be initiated prior to or after the official completion of an encounter but still be tied to the context of the encounter. CarePlan activities conducted as a result of the care plan may well occur as part of other encounters.
Cardinality 0..1
Type Reference(Encounter)
Invariants ele-1

CarePlan.period

Short When the plan is/was in effect
Definition Indicates when the plan did (or is intended to) come into effect and end.
Requirements Allows tracking what plan(s) are in effect at a particular time.
Comments Any activities scheduled as part of the plan should be constrained to the specified period regardless of whether the activities are planned within a single encounter/episode or across multiple encounters/episodes (e.g. the longitudinal management of a chronic condition).
Cardinality 0..1
Type Period
Must Support yes
Invariants ele-1
Also called timing

CarePlan.created

Short Date record was first recorded
Definition Represents when this particular CarePlan record was created in the system, which is often a system-generated date.
Cardinality 0..1
Type dateTime
Invariants ele-1
Also called authoredOn

CarePlan.author

Short Who is the designated responsible party
Definition When populated, the author is responsible for the care plan. The care plan is attributed to the author.
Comments The author may also be a contributor. For example, an organization can be an author, but not listed as a contributor.
Cardinality 0..1
Type Reference(Patient | Practitioner | PractitionerRole | Device | RelatedPerson | Organization | CareTeam)
Invariants ele-1

CarePlan.contributor

Short Who provided the content of the care plan
Definition Identifies the individual(s) or organization who provided the contents of the care plan.
Comments Collaborative care plans may have multiple contributors.
Cardinality 0..*
Type Reference(Patient | Practitioner | PractitionerRole | Device | RelatedPerson | Organization | CareTeam)
Invariants ele-1

CarePlan.careTeam

Short Who's involved in plan?
Definition Identifies all people and organizations who are expected to be involved in the care envisioned by this plan.
Requirements Allows representation of care teams, helps scope care plan. In some cases may be a determiner of access permissions.
Cardinality 0..*
Type Reference(CareTeam)
Invariants ele-1

CarePlan.addresses

Short The condition(s) being managed
Definition Identifies the conditions/problems/concerns/diagnoses/etc. whose management and/or mitigation are handled by this plan.
Requirements Links plan to the conditions it manages. The element can identify risks addressed by the plan as well as active conditions. (The Condition resource can include things like "at risk for hypertension" or "fall risk".) Also scopes plans - multiple plans may exist addressing different concerns.
Comments When the diagnosis is related to an allergy or intolerance, the Condition and AllergyIntolerance resources can both be used. However, to be actionable for decision support, using Condition alone is not sufficient as the allergy or intolerance condition needs to be represented as an AllergyIntolerance.
Cardinality 0..*
Type Reference(Condition Profile)
Must Support yes
Invariants ele-1

CarePlan.supportingInfo

Short Information considered as part of plan
Definition Identifies portions of the patient's record that specifically influenced the formation of the plan. These might include comorbidities, recent procedures, limitations, recent assessments, etc.
Requirements Identifies barriers and other considerations associated with the care plan.
Comments Use "concern" to identify specific conditions addressed by the care plan.
Cardinality 0..*
Type Reference(Resource)
Invariants ele-1

CarePlan.goal

Short The measurable targets (flowsheet rows) of this plan
Definition Describes the intended objective(s) of carrying out the care plan.
Requirements Provides context for plan. Allows plan effectiveness to be evaluated by clinicians.
Comments Goal can be achieving a particular change or merely maintaining a current state or even slowing a decline.
Cardinality 0..*
Type Reference(Goal Profile)
Must Support yes
Invariants ele-1

CarePlan.activity

Short Planned activities: a reference to a request resource, or an inline detail
Definition Identifies a planned action to occur as part of the plan. For example, a medication to be used, lab tests to perform, self-monitoring, education, etc.
Requirements Allows systems to prompt for performance of planned activities, and validate plans against best practice.
Cardinality 0..*
Type BackboneElement
Must Support yes
Invariants cpl-3, ele-1

CarePlan.activity.id

Short Unique id for inter-element referencing
Definition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Cardinality 0..1
Type http://hl7.org/fhirpath/System.String

CarePlan.activity.extension

Short Additional content defined by implementations
Definition 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.
Comments 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.
Cardinality 0..*
Type Extension
Invariants ele-1, ext-1
Also called extensions, user content

CarePlan.activity.modifierExtension

Short Extensions that cannot be ignored even if unrecognized
Definition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).
Requirements Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.
Comments 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.
Cardinality 0..*
Type Extension
Modifier yes — Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Invariants ele-1, ext-1
Also called extensions, user content, modifiers

CarePlan.activity.outcomeCodeableConcept

Short Results of the activity
Definition Identifies the outcome at the point when the status of the activity is assessed. For example, the outcome of an education activity could be patient understands (or not).
Comments Note that this should not duplicate the activity status (e.g. completed or in progress).
Cardinality 0..*
Type CodeableConcept
Binding care-plan-activity-outcome (example)
Invariants ele-1

CarePlan.activity.outcomeReference

Short Appointment, Encounter, Procedure, etc.
Definition Details of the outcome or action resulting from the activity. The reference to an "event" resource, such as Procedure or Encounter or Observation, is the result/outcome of the activity itself. The activity can be conveyed using CarePlan.activity.detail OR using the CarePlan.activity.reference (a reference to a “request” resource).
Requirements Links plan to resulting actions.
Comments The activity outcome is independent of the outcome of the related goal(s). For example, if the goal is to achieve a target body weight of 150 lbs and an activity is defined to diet, then the activity outcome could be calories consumed whereas the goal outcome is an observation for the actual body weight measured.
Cardinality 0..*
Type Reference(Resource)
Invariants ele-1

CarePlan.activity.progress

Short Comments about the activity status/progress
Definition Notes about the adherence/status/progress of the activity.
Requirements Can be used to capture information about adherence, progress, concerns, etc.
Comments This element should NOT be used to describe the activity to be performed - that occurs either within the resource pointed to by activity.detail.reference or in activity.detail.description.
Cardinality 0..*
Type Annotation
Invariants ele-1

CarePlan.activity.reference

Short The planned action as its own resource (ServiceRequest, MedicationRequest, Appointment, Task)
Definition The details of the proposed activity represented in a specific resource.
Requirements Details in a form consistent with other applications and contexts of use.
Comments Standard extension exists (resource-pertainsToGoal) that allows goals to be referenced from any of the referenced resources in CarePlan.activity.reference.
The goal should be visible when the resource referenced by CarePlan.activity.reference is viewed independently from the CarePlan. Requests that are pointed to by a CarePlan using this element should not point to this CarePlan using the "basedOn" element. i.e. Requests that are part of a CarePlan are not "based on" the CarePlan.
Cardinality 0..1
Type Reference(Appointment | CommunicationRequest | DeviceRequest | MedicationRequest | NutritionOrder | Task | ServiceRequest | VisionPrescription | RequestGroup)
Must Support yes
Invariants ele-1

CarePlan.activity.detail

Short Inline activity when no request resource exists
Definition A simple summary of a planned activity suitable for a general care plan system (e.g. form driven) that doesn't know about specific resources such as procedure etc.
Requirements Details in a simple form for generic care plan systems.
Cardinality 0..1
Type BackboneElement
Must Support yes
Invariants ele-1

CarePlan.activity.detail.id

Short Unique id for inter-element referencing
Definition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Cardinality 0..1
Type http://hl7.org/fhirpath/System.String

CarePlan.activity.detail.extension

Short Additional content defined by implementations
Definition 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.
Comments 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.
Cardinality 0..*
Type Extension
Invariants ele-1, ext-1
Also called extensions, user content

CarePlan.activity.detail.modifierExtension

Short Extensions that cannot be ignored even if unrecognized
Definition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).
Requirements Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.
Comments 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.
Cardinality 0..*
Type Extension
Modifier yes — Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Invariants ele-1, ext-1
Also called extensions, user content, modifiers

CarePlan.activity.detail.kind

Short Appointment | CommunicationRequest | DeviceRequest | MedicationRequest | NutritionOrder | Task | ServiceRequest | VisionPrescription
Definition A description of the kind of resource the in-line definition of a care plan activity is representing. The CarePlan.activity.detail is an in-line definition when a resource is not referenced using CarePlan.activity.reference. For example, a MedicationRequest, a ServiceRequest, or a CommunicationRequest.
Requirements May determine what types of extensions are permitted.
Cardinality 0..1
Type code
Binding care-plan-activity-kind (required)
Invariants ele-1

CarePlan.activity.detail.instantiatesCanonical

Short Instantiates FHIR protocol or definition
Definition The URL pointing to a FHIR-defined protocol, guideline, questionnaire or other definition that is adhered to in whole or in part by this CarePlan activity.
Requirements Allows Questionnaires that the patient (or practitioner) should fill in to fulfill the care plan activity.
Cardinality 0..*
Type canonical
Invariants ele-1

CarePlan.activity.detail.instantiatesUri

Short Instantiates external protocol or definition
Definition The URL pointing to an externally maintained protocol, guideline, questionnaire or other definition that is adhered to in whole or in part by this CarePlan activity.
Requirements Allows Questionnaires that the patient (or practitioner) should fill in to fulfill the care plan activity.
Comments This might be an HTML page, PDF, etc. or could just be a non-resolvable URI identifier.
Cardinality 0..*
Type uri
Invariants ele-1

CarePlan.activity.detail.code

Short Detail type of activity
Definition Detailed description of the type of planned activity; e.g. what lab test, what procedure, what kind of encounter.
Requirements Allows matching performed to planned as well as validation against protocols.
Comments Tends to be less relevant for activities involving particular products. Codes should not convey negation - use "prohibited" instead.
Cardinality 0..1
Type CodeableConcept
Must Support yes
Binding procedure-code (example)
Invariants ele-1

CarePlan.activity.detail.reasonCode

Short Why activity should be done or why activity was prohibited
Definition Provides the rationale that drove the inclusion of this particular activity as part of the plan or the reason why the activity was prohibited.
Comments This could be a diagnosis code. If a full condition record exists or additional detail is needed, use reasonCondition instead.
Cardinality 0..*
Type CodeableConcept
Binding clinical-findings (example)
Invariants ele-1

CarePlan.activity.detail.reasonReference

Short Why activity is needed
Definition Indicates another resource, such as the health condition(s), whose existence justifies this request and drove the inclusion of this particular activity as part of the plan.
Comments Conditions can be identified at the activity level that are not identified as reasons for the overall plan.
Cardinality 0..*
Type Reference(Condition | Observation | DiagnosticReport | DocumentReference)
Invariants ele-1

CarePlan.activity.detail.goal

Short Goals this activity relates to
Definition Internal reference that identifies the goals that this activity is intended to contribute towards meeting.
Requirements So that participants know the link explicitly.
Cardinality 0..*
Type Reference(Goal)
Invariants ele-1

CarePlan.activity.detail.status

Short not-started | scheduled | in-progress | on-hold | completed | cancelled | stopped | unknown | entered-in-error
Definition Identifies what progress is being made for the specific activity.
Requirements Indicates progress against the plan, whether the activity is still relevant for the plan.
Comments Some aspects of status can be inferred based on the resources linked in actionTaken. Note that "status" is only as current as the plan was most recently updated.
The unknown code is not to be used to convey other statuses. The unknown code should be used when one of the statuses applies, but the authoring system doesn't know the current state of the activity.
Cardinality 1..1
Type code
Must Support yes
Modifier yes — This element is labelled as a modifier because it is a status element that contains status entered-in-error which means that the activity should not be treated as valid
Binding care-plan-activity-status (required)
Invariants ele-1

CarePlan.activity.detail.statusReason

Short Reason for current status
Definition Provides reason why the activity isn't yet started, is on hold, was cancelled, etc.
Comments Will generally not be present if status is "complete". Be sure to prompt to update this (or at least remove the existing value) if the status is changed.
Cardinality 0..1
Type CodeableConcept
Invariants ele-1

CarePlan.activity.detail.doNotPerform

Short If true, activity is prohibiting action
Definition If true, indicates that the described activity is one that must NOT be engaged in when following the plan. If false, or missing, indicates that the described activity is one that should be engaged in when following the plan.
Requirements Captures intention to not do something that may have been previously typical.
Comments This element is labeled as a modifier because it marks an activity as an activity that is not to be performed.
Cardinality 0..1
Type boolean
Modifier yes — If true this element negates the specified action. For example, instead of a request for a procedure, it is a request for the procedure to not occur.
Invariants ele-1

CarePlan.activity.detail.scheduled[x]

Short When activity is to occur
Definition The period, timing or frequency upon which the described activity is to occur.
Requirements Allows prompting for activities and detection of missed planned activities.
Cardinality 0..1
Type Timing, Period, string
Invariants ele-1

CarePlan.activity.detail.location

Short Where it should happen
Definition Identifies the facility where the activity will occur; e.g. home, hospital, specific clinic, etc.
Requirements Helps in planning of activity.
Comments May reference a specific clinical location or may identify a type of location.
Cardinality 0..1
Type Reference(Location)
Invariants ele-1

CarePlan.activity.detail.performer

Short Who will be responsible?
Definition Identifies who's expected to be involved in the activity.
Requirements Helps in planning of activity.
Comments A performer MAY also be a participant in the care plan.
Cardinality 0..*
Type Reference(Practitioner | PractitionerRole | Organization | RelatedPerson | Patient | CareTeam | HealthcareService | Device)
Invariants ele-1

CarePlan.activity.detail.product[x]

Short What is to be administered/supplied
Definition Identifies the food, drug or other product to be consumed or supplied in the activity.
Cardinality 0..1
Type CodeableConcept, Reference(Medication | Substance)
Binding medication-codes (example)
Invariants ele-1

CarePlan.activity.detail.dailyAmount

Short How to consume/day?
Definition Identifies the quantity expected to be consumed in a given day.
Requirements Allows rough dose checking.
Cardinality 0..1
Type Quantity(SimpleQuantity)
Invariants ele-1
Also called daily dose

CarePlan.activity.detail.quantity

Short How much to administer/supply/consume
Definition Identifies the quantity expected to be supplied, administered or consumed by the subject.
Cardinality 0..1
Type Quantity(SimpleQuantity)
Invariants ele-1

CarePlan.activity.detail.description

Short Extra info describing activity to perform
Definition This provides a textual description of constraints on the intended activity occurrence, including relation to other activities. It may also include objectives, pre-conditions and end-conditions. Finally, it may convey specifics about the activity such as body site, method, route, etc.
Cardinality 0..1
Type string
Invariants ele-1

CarePlan.note

Short Comments about the plan
Definition General notes about the care plan not covered elsewhere.
Requirements Used to capture information that applies to the plan as a whole that doesn't fit into discrete elements.
Cardinality 0..*
Type Annotation
Invariants ele-1