The quality of the evidence described. The code system used specifies the quality scale used to grade this evidence source while the code specifies the actual quality score (represented as a coded value) associated with the evidence.

The strength of the recommendation assigned to this reference. The code system used specifies the rating scale used to rate this recommendation while the code specifies the actual recommendation rating (represented as a coded value) associated with this recommendation.

A bibliographic citation for the related resource. This text SHOULD be formatted according to an accepted citation format.

A reference to a Library containing the formal logic used by the artifact.

An expression that, when evaluated, provides the value for the element on which it appears.

An expression that determines an initial value. The expression may be simply the name of a expression in a referenced library, or it may be a complete inline expression.

An expression that determines a calculated value. The expression may be simply the name of a expression in a referenced library, or it may be a complete inline expression.

The definition of a parameter that is expected to be provided as part of the invocation of the trigger.

Allows an indication of whether this parameter can be used to parameterize prefetch templates (i.e. queries that can be used to identify data-of-interest to be sent as part of a triggered request.

The measure criteria that resulted in the resource being included in a particular evaluatedResources bundle.

The organization initiating the request.

The person initiating the request.

The type of user initiating the request, e.g. patient, healthcare provider, or specific type of healthcare provider (physician, nurse, etc.).

Preferred language of the person using the system.

The task the system user is performing, e.g. laboratory results review, medication list review, etc. This information can be used to tailor decision support outputs, such as recommended information resources.

The organization that will receive the response.

The person in the receiving organization that will receive the response.

The type of individual that will consume the response content. This may be different from the requesting user type (e.g. if a clinician is getting disease management guidance for provision to a patient). E.g. patient, healthcare provider or specific type of healthcare provider (physician, nurse, etc.).

Preferred language of the person that will consume the content.

The class of encounter (inpatient, outpatient, etc.).

The type of the encounter.

A date/time value that is determined based on a duration offset from a target event.

Specifies the URI of a CDS Hooks service that uses this PlanDefinition as its implementation.

A reference to a Person, Group, Device, or Organization that is the contact.

When the contribution was made by this contributor.

The address of the contributor.

An assessment of certainty, confidence, or quality of the item on which it appears.

Defines a knowledge capability afforded by this knowledge artifact.

Defines a knowledge representation level provided by this knowledge artifact.

A comment containing additional documentation, a review comment, usage guidance, or other relevant information from a particular user.

Defines a code directly referenced by artifact logic, as opposed to a value set. Direct reference codes may be the target of data requirements.

Represents a specific logic definition used by the artifact.

Specifies the input parameters to the operation (such as a test case description or a data requirements or evaluate operation).

Specifies an invariant that is enforced in the context of an instantiated resource.

Specifies an alternative, equivalent expression in another formal language. For example, given a condition expression in CQL, an alternative formulation in SQL could be provided.

Indicates that the server supports the given version of Clinical Quality Language (CQL). Valid values are major.minor and optionally the patch version of any published version of the CQL specification.