Record of the date and/or time of the first exposure to the Substance for this Reaction Event.

The amount of time that the Adverse Reaction persisted.

Provides a coded expression for the content represented in a string.

A protocol, guideline or other definition that was adhered to in whole or in part by this event.

A group or place of religious practice that may provide services to the patient.

Indicates that the style extensions ([style](extension-rendering-style.html), [markdown](extension-rendering-markdown.html)) and [xhtml](extension-rendering-xhtml.html)) in this resource are essential to the interpretation of the styled text and that it cannot be rendered without the style without losing essential information.

Identifies a document that conveys some sort of information related to the data element.

The numeric portion of a building number.

Identifies the relative order in which concepts within the value set should be presented to a user.

Source of sample used to determine the sequence in sequencing lab -- germline, somatic, prenatal. LOINC Code: ([48002-0](http://loinc.org/48002-0)).

The platform, methodology and software applied at the time of the genotyping.

Describes the intended purpose of the rendered text. For example - instructions, guidance on access control, maintenance information, etc.

Identifies a sibling of the relative.

Identifies the date on which the element became (or is expected to become) active and the date on which the element became (or is expected to become) retired.

A FHIRPath statement that defines whether an element is in the slice.

If true, indicates that the extended item should not be displayed to the user.

The XML (schema) type of a property - used for the value attribute of a primitive type (for which there is no type in the FHIR typing system).

A code to track a detailed progress of a procedure (e.g. In Recovery, Prepared for Surgery).

A physical quality which inheres to the allele by virtue of the number instances of the allele within a population. LOINC Code: ([81258-6](http://loinc.org/81258-6)).

The type of the encounter.

If true, indicates that the specified coding corresponds to the data element concept for the data element.

This Contact is the preferred contact at this organization for the purpose of the contact There can be multiple contacts on an Organizations record with this value set to true, but these should all have different purpose values.

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

This text is intended to act as a citation to work done elsewhere that is not part of the current stewarding process where the referenced source is in some way a basis of the current value set definition.

A quality common to all members of an object class. A property may be any feature that humans naturally use to distinguish one individual object from another. It is the human perception of a single quality of an object class in the real world. It is conceptual and thus has no particular associated means of representation by which the property can be communicated.