Quality Measure Implementation Guide, published by HL7 International / Clinical Quality Information. This guide is not an authorized publication; it is the continuous build for version 5.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/cqf-measures/ and changes regularly. See the Directory of published versions

Official URL: http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/cqfm-populationBasis |
Version:
4.0.0 |
|||

Active as of 2024-11-02 | Computable Name: CQFMPopulationBasis |

The population basis specifies the type of elements in the population. For a subject-based measure, this is boolean (because the subject and the population basis are the same, and the population criteria define yes/no values for each individual in the population). For measures that have a population basis that is different than the subject, this element specifies the type of the population basis. For example, an encounter-based measure has a subject of Patient and a population basis of Encounter, and the population criteria all return lists of Encounters. Note that the subject of a measure can be found in the element subject[x].

A measure specification needs to be able to specify the expected result type of each population criteria. This value SHALL be consistent with the result type of all population-level criteria in the measure.

**Context of Use**

This extension may be used on the following element(s):

- Element ID Measure
- Element ID Measure.group
- Element ID Measure.group.population

**Usage info**

**Usage:**

- Use this Extension: CQFM Computable Measure and CQFM Ratio Measure
- Examples for this Extension: BCSComponent, CCSComponent, EXM108, EXM124... Show 12 more

Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.

This structure is derived from Extension

**
Summary
**

Simple Extension of type code: The population basis specifies the type of elements in the population. For a subject-based measure, this is boolean (because the subject and the population basis are the same, and the population criteria define yes/no values for each individual in the population). For measures that have a population basis that is different than the subject, this element specifies the type of the population basis. For example, an encounter-based measure has a subject of Patient and a population basis of Encounter, and the population criteria all return lists of Encounters. Note that the subject of a measure can be found in the element subject[x].

This structure is derived from Extension

Name | Flags | Card. | Type | Description & Constraints |
---|---|---|---|---|

Extension | 0..1 | Extension | What type of population | |

url | 1..1 | uri | "http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/cqfm-populationBasis" | |

value[x] | 0..1 | code | Value of extension Binding: FHIRAllTypes (required): The type of elements in the population | |

Documentation for this format |

Name | Flags | Card. | Type | Description & Constraints |
---|---|---|---|---|

Extension | 0..1 | Extension | What type of population | |

id | 0..1 | string | Unique id for inter-element referencing | |

extension | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |

url | 1..1 | uri | "http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/cqfm-populationBasis" | |

value[x] | 0..1 | code | Value of extension Binding: FHIRAllTypes (required): The type of elements in the population | |

Documentation for this format |

This structure is derived from Extension

**
Summary
**

Simple Extension of type code: The population basis specifies the type of elements in the population. For a subject-based measure, this is boolean (because the subject and the population basis are the same, and the population criteria define yes/no values for each individual in the population). For measures that have a population basis that is different than the subject, this element specifies the type of the population basis. For example, an encounter-based measure has a subject of Patient and a population basis of Encounter, and the population criteria all return lists of Encounters. Note that the subject of a measure can be found in the element subject[x].

**Differential View**

This structure is derived from Extension

Name | Flags | Card. | Type | Description & Constraints |
---|---|---|---|---|

Extension | 0..1 | Extension | What type of population | |

url | 1..1 | uri | "http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/cqfm-populationBasis" | |

value[x] | 0..1 | code | Value of extension Binding: FHIRAllTypes (required): The type of elements in the population | |

Documentation for this format |

**Snapshot View**

Name | Flags | Card. | Type | Description & Constraints |
---|---|---|---|---|

Extension | 0..1 | Extension | What type of population | |

id | 0..1 | string | Unique id for inter-element referencing | |

extension | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |

url | 1..1 | uri | "http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/cqfm-populationBasis" | |

value[x] | 0..1 | code | Value of extension Binding: FHIRAllTypes (required): The type of elements in the population | |

Documentation for this format |

Other representations of profile: CSV, Excel, Schematron

Path | Conformance | ValueSet | URI |

Extension.value[x] | required | FHIRAllTypes`http://hl7.org/fhir/ValueSet/all-types` from the FHIR Standard |

Id | Grade | Path(s) | Details | Requirements |

ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) | |

ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both : extension.exists() != value.exists() |