A patient will (a single entry in the patient will) - an individual statement of permission or refusal for care-related activities such as live organ donation, resuscitation, etc.

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 might 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. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

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.

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).

The business identifier(s) for the patient will entry - This is an optional attribute, used for example to track an entry throughout its lifecycle, or across vaults.

The date and/or time when the patient will has been declared - for example if this captures a physical document that was sgined by a patient on a given date, this element would correspond with that date

The healthcare professional who takes responsibility for collecting content.

The subject of the patient will.

Supporting evidence for the patient will (e.g. a paper signed by the patient to refuse a specific treatment)

The patient will directive

The detailed patient will directive (e.g. no hospitalization, bloodtransfusion refusal) (Valueset will be delivered by a working group of NIHDI)

Whether the patient will action is explicitly permitted or explicitly denied

The main types of patient will

The period of validity for the patient will directive

The time period of validity for the patient will directive

A free-text indication of the period of validity for the patient will directive