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# qSOFA (Quick SOFA) - Open Nursing Core FHIR Implementation Guide (ONC-IG) v0.1.0

* [**Table of Contents**](toc.md)
* [**Artifacts Summary**](artifacts.md)
* **qSOFA (Quick SOFA)**

## Resource Profile: qSOFA (Quick SOFA) 

| | |
| :--- | :--- |
| *Official URL*:https://clinyqai.github.io/open-nursing-core-ig/StructureDefinition/onc-qsofa | *Version*:0.1.0 |
| Draft as of 2026-01-01 | *Computable Name*:ONCqSOFA |

 
Quick Sequential Organ Failure Assessment for sepsis screening. Score ≥2 indicates high risk. Total range 0-3. 

**Usages:**

* This Profile is not used by any profiles in this Implementation Guide

You can also check for [usages in the FHIR IG Statistics](https://packages2.fhir.org/xig/onc.ig|current/StructureDefinition/onc-qsofa)

### Formal Views of Profile Content

 [Description of Profiles, Differentials, Snapshots and how the different presentations work](http://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#structure-definitions). 

 

Other representations of profile: [CSV](StructureDefinition-onc-qsofa.csv), [Excel](StructureDefinition-onc-qsofa.xlsx), [Schematron](StructureDefinition-onc-qsofa.sch) 



## Resource Content

```json

{

  "resourceType" : "StructureDefinition",

  "id" : "onc-qsofa",

  "url" : "https://clinyqai.github.io/open-nursing-core-ig/StructureDefinition/onc-qsofa",

  "version" : "0.1.0",

  "name" : "ONCqSOFA",

  "title" : "qSOFA (Quick SOFA)",

  "status" : "draft",

  "date" : "2026-01-01T13:37:23+00:00",

  "description" : "Quick Sequential Organ Failure Assessment for sepsis screening. Score ≥2 indicates high risk. Total range 0-3.",

  "fhirVersion" : "4.0.1",

  "mapping" : [

    {

      "identity" : "workflow",

      "uri" : "http://hl7.org/fhir/workflow",

      "name" : "Workflow Pattern"

    },

    {

      "identity" : "sct-concept",

      "uri" : "http://snomed.info/conceptdomain",

      "name" : "SNOMED CT Concept Domain Binding"

    },

    {

      "identity" : "v2",

      "uri" : "http://hl7.org/v2",

      "name" : "HL7 v2 Mapping"

    },

    {

      "identity" : "rim",

      "uri" : "http://hl7.org/v3",

      "name" : "RIM Mapping"

    },

    {

      "identity" : "w5",

      "uri" : "http://hl7.org/fhir/fivews",

      "name" : "FiveWs Pattern Mapping"

    },

    {

      "identity" : "sct-attr",

      "uri" : "http://snomed.org/attributebinding",

      "name" : "SNOMED CT Attribute Binding"

    }

  ],

  "kind" : "resource",

  "abstract" : false,

  "type" : "Observation",

  "baseDefinition" : "https://clinyqai.github.io/open-nursing-core-ig/StructureDefinition/onc-nursing-assessment",

  "derivation" : "constraint",

  "differential" : {

    "element" : [

      {

        "id" : "Observation",

        "path" : "Observation"

      },

      {

        "id" : "Observation.status",

        "path" : "Observation.status",

        "mustSupport" : true

      },

      {

        "id" : "Observation.code",

        "path" : "Observation.code",

        "patternCodeableConcept" : {

          "coding" : [

            {

              "system" : "http://loinc.org",

              "code" : "96790-1",

              "display" : "SOFA Total Score"

            }

          ]

        },

        "mustSupport" : true

      },

      {

        "id" : "Observation.value[x]",

        "path" : "Observation.value[x]",

        "short" : "qSOFA total score (0-3, ≥2 = high risk)",

        "type" : [

          {

            "code" : "Quantity"

          }

        ]

      },

      {

        "id" : "Observation.value[x].value",

        "path" : "Observation.value[x].value",

        "constraint" : [

          {

            "key" : "qsofa-range",

            "severity" : "error",

            "human" : "qSOFA score must be between 0 and 3",

            "expression" : "$this >= 0 and $this <= 3",

            "source" : "https://clinyqai.github.io/open-nursing-core-ig/StructureDefinition/onc-qsofa"

          }

        ]

      },

      {

        "id" : "Observation.value[x].unit",

        "path" : "Observation.value[x].unit",

        "patternString" : "{score}"

      },

      {

        "id" : "Observation.value[x].system",

        "path" : "Observation.value[x].system",

        "patternUri" : "http://unitsofmeasure.org"

      }

    ]

  }

}



```