This code system http://hl7.org/fhir/request-intent defines the following codes:

LvlCodeDisplayDefinition
1proposal ProposalThe request is a suggestion made by someone/something that does not have an intention to ensure it occurs and without providing an authorization to act.
1plan PlanThe request represents an intention to ensure something occurs without providing an authorization for others to act.
1directive DirectiveThe request represents a legally binding instruction authored by a Patient or RelatedPerson.
1order OrderThe request represents a request/demand and authorization for action by a Practitioner.
2  original-order Original OrderThe request represents an original authorization for action.
2  reflex-order Reflex OrderThe request represents an automatically generated supplemental authorization for action based on a parent authorization together with initial results of the action taken against that parent authorization.
2  filler-order Filler OrderThe request represents the view of an authorization instantiated by a fulfilling system representing the details of the fulfiller's intention to act upon a submitted order.
3    instance-order Instance OrderAn order created in fulfillment of a broader order that represents the authorization for a single activity occurrence. E.g. The administration of a single dose of a drug.
1option OptionThe request represents a component or option for a RequestGroup that establishes timing, conditionality and/or other constraints among a set of requests. Refer to [[[RequestGroup]]] for additional information on how this status is used.
<status value="draft"/><experimental value="true"/><date value="2022-05-28T12:47:40+10:00"/><publisher value="HL7 (FHIR Project)"/><contact><telecom><system value="url"/><value value="http://hl7.org/fhir"/></telecom><telecom><system value="email"/><value value="fhir@lists.hl7.org"/></telecom></contact><description value="Codes indicating the degree of authority/intentionality associated with a request."/><caseSensitive value="true"/><valueSet value="http://hl7.org/fhir/ValueSet/request-intent"/><content value="complete"/><concept><code value="proposal"/><display value="Proposal"/><definition value="The request is a suggestion made by someone/something that does not have an intention to ensure it occurs and without providing an authorization to act."/></concept><concept><code value="plan"/><display value="Plan"/><definition value="The request represents an intention to ensure something occurs without providing an authorization for others to act."/></concept><concept><code value="directive"/><display value="Directive"/><definition value="The request represents a legally binding instruction authored by a Patient or RelatedPerson."/></concept><concept><code value="order"/><display value="Order"/><definition value="The request represents a request/demand and authorization for action by a Practitioner."/><concept><code value="original-order"/><display value="Original Order"/><definition value="The request represents an original authorization for action."/></concept><concept><code value="reflex-order"/><display value="Reflex Order"/><definition value="The request represents an automatically generated supplemental authorization for action based on a parent authorization together with initial results of the action taken against that parent authorization."/></concept><concept><code value="filler-order"/><display value="Filler Order"/><definition value="The request represents the view of an authorization instantiated by a fulfilling system representing the details of the fulfiller's intention to act upon a submitted order."/><concept><code value="instance-order"/><display value="Instance Order"/><definition value="An order created in fulfillment of a broader order that represents the authorization for a single activity occurrence. E.g. The administration of a single dose of a drug."/></concept></concept></concept><concept><code value="option"/><display value="Option"/><definition value="The request represents a component or option for a RequestGroup that establishes timing, conditionality and/or other constraints among a set of requests. Refer to [[[RequestGroup]]] for additional information on how this status is used."/></concept></CodeSystem>