> ## Documentation Index > Fetch the complete documentation index at: https://docs.metriport.com/llms.txt > Use this file to discover all available pages before exploring further. # RiskAssessment > An assessment of the likely outcome(s) for a patient or other subject as well as the likelihood of each outcome. ## Properties | Name | Required | Type | Description | | ------------------- | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------ | | identifier | No | [Identifier](/medical-api/fhir/data-types/identifier)\[] | Unique identifier for the assessment | | basedOn | No | Reference\ | Request fulfilled by this assessment | | parent | No | Reference\ | Part of this occurrence | | status | Yes | code | registered / preliminary / final / amended + | | method | No | [CodeableConcept](/medical-api/fhir/data-types/codeableconcept) | Evaluation mechanism | | code | No | [CodeableConcept](/medical-api/fhir/data-types/codeableconcept) | Type of assessment | | subject | Yes | Reference\<[Patient](/medical-api/fhir/resources/patient) / [Group](/medical-api/fhir/resources/group)> | Who/what does assessment apply to? | | encounter | No | Reference\<[Encounter](/medical-api/fhir/resources/encounter)> | Where was assessment performed? | | occurrence\[x] | No | dateTime, [Period](/medical-api/fhir/data-types/period) | When was assessment made? | | condition | No | Reference\<[Condition](/medical-api/fhir/resources/condition)> | Condition assessed | | performer | No | Reference\<[Practitioner](/medical-api/fhir/resources/practitioner) / [PractitionerRole](/medical-api/fhir/resources/practitionerrole) / [Device](/medical-api/fhir/resources/device)> | Who did assessment? | | reasonCode | No | [CodeableConcept](/medical-api/fhir/data-types/codeableconcept)\[] | Why the assessment was necessary? | | reasonReference | No | Reference\<[Condition](/medical-api/fhir/resources/condition) / [Observation](/medical-api/fhir/resources/observation) / [DiagnosticReport](/medical-api/fhir/resources/diagnosticreport) / [DocumentReference](/medical-api/fhir/resources/documentreference)>\[] | Why the assessment was necessary? | | basis | No | Reference\\[] | Information used in assessment | | prediction | No | RiskAssessmentPrediction | Outcome predicted | | - id | No | string | Unique id for inter-element referencing | | - extension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Additional content defined by implementations | | - modifierExtension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Extensions that cannot be ignored even if unrecognized | | - outcome | No | [CodeableConcept](/medical-api/fhir/data-types/codeableconcept) | Possible outcome for the subject | | - probability\[x] | No | decimal, [Range](/medical-api/fhir/data-types/range) | Likelihood of specified outcome | | - qualitativeRisk | No | [CodeableConcept](/medical-api/fhir/data-types/codeableconcept) | Likelihood of specified outcome as a qualitative value | | - relativeRisk | No | decimal | Relative likelihood | | - when\[x] | No | [Period](/medical-api/fhir/data-types/period), [Range](/medical-api/fhir/data-types/range) | Timeframe or age range | | - rationale | No | string | Explanation of prediction | | mitigation | No | string | How to reduce risk | | note | No | [Annotation](/medical-api/fhir/data-types/annotation)\[] | Comments on the risk assessment | ## Search Parameters | Name | Type | Description | Expression | | ----------- | --------- | ------------------------------------------------------ | ----------------------------------------- | | date | date | When was assessment made? | RiskAssessment.occurrence | | identifier | token | Unique identifier for the assessment | RiskAssessment.identifier | | patient | reference | Who/what does assessment apply to? | RiskAssessment.subject | | encounter | reference | Where was assessment performed? | RiskAssessment.encounter | | condition | reference | Condition assessed | RiskAssessment.condition | | method | token | Evaluation mechanism | RiskAssessment.method | | performer | reference | Who did assessment? | RiskAssessment.performer | | probability | number | Likelihood of specified outcome | RiskAssessment.prediction.probability | | risk | token | Likelihood of specified outcome as a qualitative value | RiskAssessment.prediction.qualitativeRisk | | subject | reference | Who/what does assessment apply to? | RiskAssessment.subject | ## Inherited Properties | Name | Required | Type | Description | | ----------------- | -------- | ------------------------------------------------------ | ------------------------------------------------------ | | id | No | string | Logical id of this artifact | | meta | No | [Meta](/medical-api/fhir/data-types/meta) | Metadata about the resource | | implicitRules | No | uri | A set of rules under which this content was created | | language | No | code | Language of the resource content | | text | No | [Narrative](/medical-api/fhir/data-types/narrative) | Text summary of the resource, for human interpretation | | contained | No | Resource\[] | Contained, inline Resources | | extension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Additional content defined by implementations | | modifierExtension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Extensions that cannot be ignored | To view the FHIR specification for this resource, see [RiskAssessment](https://www.hl7.org/fhir/StructureDefinition/RiskAssessment).