This page is part of the FHIR Specification (v0.5.0: DSTU 2 Ballot 2). The current version which supercedes this version is 5.0.0.  For a full list of available versions, see the Directory of published versions  . Page versions: R5 R4B R4 R3 R2
. Page versions: R5 R4B R4 R3 R2

Detailed Descriptions for the elements in the RiskAssessment resource.
| RiskAssessment | |
| Definition | An assessment of the likely outcome(s) for a patient or other subject as well as the likelihood of each outcome. | 
| Control | 1..1 | 
| Alternate Names | Prognosis | 
| RiskAssessment.subject | |
| Definition | The patient or group the risk assessment applies to. | 
| Control | 0..1 | 
| Type | Reference(Patient | Group) | 
| Summary | true | 
| To Do | Should this cover anything else? Device? Location? | 
| RiskAssessment.date | |
| Definition | The date (and possibly time) the risk assessment was performed. | 
| Control | 0..1 | 
| Type | dateTime | 
| Requirements | The assessment results lose validity the more time elapses from when they are first made. | 
| Summary | true | 
| RiskAssessment.condition | |
| Definition | For assessments or prognosis specific to a particular condition, indicates the condition being assessed. | 
| Control | 0..1 | 
| Type | Reference(Condition) | 
| Summary | true | 
| RiskAssessment.performer | |
| Definition | The provider or software application that performed the assessment. | 
| Control | 0..1 | 
| Type | Reference(Practitioner | Device) | 
| Summary | true | 
| RiskAssessment.identifier | |
| Definition | Business identifier assigned to the risk assessment. | 
| Note | This is a business identifer, not a resource identifier (see discussion) | 
| Control | 0..1 | 
| Type | Identifier | 
| Summary | true | 
| RiskAssessment.method | |
| Definition | The algorithm, processs or mechanism used to evaluate the risk. | 
| Control | 0..1 | 
| Binding | RiskAssessmentMethod: The mechanism or algorithm used to make the assessment. E.g. TIMI, PRISM, Cardiff Type 2 diabetes, etc. | 
| Type | CodeableConcept | 
| Requirements | The method can influence the results of the assessment. | 
| Summary | true | 
| To Do | Is this in the 80%? | 
| RiskAssessment.basis | |
| Definition | Indicates the source data considered as part of the assessment (FamilyHistory, Observations, Procedures, Conditions, etc.). | 
| Control | 0..* | 
| Type | Reference(Any) | 
| RiskAssessment.prediction | |
| Definition | Describes the expected outcome for the subject. | 
| Control | 0..* | 
| Comments | Multiple repetitions can be used to identify the same type of outcome in different timeframes as well as different types of outcomes. | 
| RiskAssessment.prediction.outcome | |
| Definition | One of the potential outcomes for the patient (e.g. remission, death, a particular condition). | 
| Control | 1..1 | 
| Binding | RiskAssessmentOutcome: The condition or other outcome. E.g. death, remission, amputation, infection, etc. | 
| Type | CodeableConcept | 
| RiskAssessment.prediction.probability[x] | |
| Definition | How likely is the outcome (in the specified timeframe). | 
| Control | 0..1 | 
| Binding | RiskAssessmentProbability: Example: See http://hl7.org/fhir/vs/risk-probability (The likelihood of the occurrence of a specified outcome) | 
| Type | decimal|Range|CodeableConcept | 
| Comments | If range is used, it represents the lower and upper bounds of certainty. E.g. 40-60% Decimal values are expressed as percentages as well (max = 100). | 
| Invariants | Defined on this element ras-1: low and high must be percentages, if present (xpath: (not(f:low) or f:low[f:code/@value='%' and f:system/@value='http://unitsofmeasure.org']) and (not(f:high) or f:high[f:code/@value='%' and f:system/@value='http://unitsofmeasure.org'])) ras-2: Must be <= 100 (xpath: @value <= 100) | 
| RiskAssessment.prediction.relativeRisk | |
| Definition | Indicates the risk for this particular subject (with their specific characteristics) divided by the risk of the population in general. (Numbers greater than 1 = higher risk than the population, numbers less than 1 = lower risk.). | 
| Control | 0..1 | 
| Type | decimal | 
| Requirements | Absolute risk is less meaningful than relative risk. | 
| To Do | Is this in the 80%? | 
| RiskAssessment.prediction.when[x] | |
| Definition | Indicates the period of time or age range of the subject to which the specified probability applies. | 
| Control | 0..1 | 
| Type | Period|Range | 
| Comments | If not specified, the risk applies "over the subject's lifespan". | 
| RiskAssessment.prediction.rationale | |
| Definition | Additional information explaining the basis for the prediction. | 
| Control | 0..1 | 
| Type | string | 
| RiskAssessment.mitigation | |
| Definition | A description of the steps that might be taken to reduce the identified risk(s). | 
| Control | 0..1 | 
| Type | string | 
| Requirements | One of the main reasons for assessing risks is to identify whether interventional steps are needed to reduce risk. |