Integrated Campaign Registry (ICR) Implementation Guide
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Integrated Campaign Registry (ICR) Implementation Guide - Local Development build (v0.1.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

Extension: Building Count

Official URL: https://icr.healthcampaigns.org/StructureDefinition/building-count Version: 0.1.0
Draft as of 2026-10-29 Computable Name: BuildingCount

The number of building footprints inside a Location's boundary according to one footprint dataset — a locate/enumerate attribute of the area, like its boundary, not a programme figure. Repeatable: one entry per source (and, for detection datasets, per confidence threshold), each dated, so OSM, Overture and Google Open Buildings counts sit side by side and are never mistaken for one another. Used for microplanning sanity checks (buildings vs. population, households vs. buildings) on catchments, settlements and admin units (catchments round, Sep 2026).

Context of Use

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

Usage info

Usages:

You can also check for usages in the FHIR IG Statistics

Formal Views of Extension Content

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

This structure is derived from Extension

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension Building Count
... extension 2..* Extension Extension
... Slices for extension Content/Rules for all slices
.... extension:source S 1..1 Extension osm | overture | google-open-buildings | microsoft | …
..... extension 0..0 Extension
..... url 1..1 uri "source"
..... value[x] 0..1 CodeableConcept Value of extension
Binding: ICR Building Footprint Source (extensible)
.... extension:count S 1..1 Extension Footprints inside the boundary
..... extension 0..0 Extension
..... url 1..1 uri "count"
..... value[x] 0..1 unsignedInt Value of extension
.... extension:date S 0..1 Extension Dataset release / extraction date (YYYY-MM or YYYY-MM-DD)
..... extension 0..0 Extension
..... url 1..1 uri "date"
..... value[x] 0..1 date Value of extension
.... extension:minConfidence 0..1 Extension Detection confidence threshold applied (0–1), e.g. 0.6 / 0.7 / 0.8 for Google Open Buildings
..... extension 0..0 Extension
..... url 1..1 uri "minConfidence"
..... value[x] 0..1 decimal Value of extension
... url 1..1 uri "https://icr.healthcampaigns.org/StructureDefinition/building-count"

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension Building Count
... id 0..1 string Unique id for inter-element referencing
... Slices for extension 2..* Extension Extension
Slice: Unordered, Open by value:url
.... extension:source S 1..1 Extension osm | overture | google-open-buildings | microsoft | …
..... id 0..1 string Unique id for inter-element referencing
..... extension 0..0 Extension
Slice: Unordered, Open by value:url
..... url 1..1 uri "source"
..... value[x] 0..1 CodeableConcept Value of extension
Binding: ICR Building Footprint Source (extensible)
.... extension:count S 1..1 Extension Footprints inside the boundary
..... id 0..1 string Unique id for inter-element referencing
..... extension 0..0 Extension
Slice: Unordered, Open by value:url
..... url 1..1 uri "count"
..... value[x] 0..1 unsignedInt Value of extension
.... extension:date S 0..1 Extension Dataset release / extraction date (YYYY-MM or YYYY-MM-DD)
..... id 0..1 string Unique id for inter-element referencing
..... extension 0..0 Extension
Slice: Unordered, Open by value:url
..... url 1..1 uri "date"
..... value[x] 0..1 date Value of extension
.... extension:minConfidence 0..1 Extension Detection confidence threshold applied (0–1), e.g. 0.6 / 0.7 / 0.8 for Google Open Buildings
..... id 0..1 string Unique id for inter-element referencing
..... extension 0..0 Extension
Slice: Unordered, Open by value:url
..... url 1..1 uri "minConfidence"
..... value[x] 0..1 decimal Value of extension
... url 1..1 uri "https://icr.healthcampaigns.org/StructureDefinition/building-count"

doco Documentation for this format

This structure is derived from Extension

Summary

Complex Extension: The number of building footprints inside a Location's boundary according to one footprint dataset — a locate/enumerate attribute of the area, like its boundary, not a programme figure. Repeatable: one entry per source (and, for detection datasets, per confidence threshold), each dated, so OSM, Overture and Google Open Buildings counts sit side by side and are never mistaken for one another. Used for microplanning sanity checks (buildings vs. population, households vs. buildings) on catchments, settlements and admin units (catchments round, Sep 2026).

  • source: CodeableConcept: An Extension
  • count: unsignedInt: An Extension
  • date: date: An Extension
  • minConfidence: decimal: An Extension

Differential View

This structure is derived from Extension

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension Building Count
... extension 2..* Extension Extension
... Slices for extension Content/Rules for all slices
.... extension:source S 1..1 Extension osm | overture | google-open-buildings | microsoft | …
..... extension 0..0 Extension
..... url 1..1 uri "source"
..... value[x] 0..1 CodeableConcept Value of extension
Binding: ICR Building Footprint Source (extensible)
.... extension:count S 1..1 Extension Footprints inside the boundary
..... extension 0..0 Extension
..... url 1..1 uri "count"
..... value[x] 0..1 unsignedInt Value of extension
.... extension:date S 0..1 Extension Dataset release / extraction date (YYYY-MM or YYYY-MM-DD)
..... extension 0..0 Extension
..... url 1..1 uri "date"
..... value[x] 0..1 date Value of extension
.... extension:minConfidence 0..1 Extension Detection confidence threshold applied (0–1), e.g. 0.6 / 0.7 / 0.8 for Google Open Buildings
..... extension 0..0 Extension
..... url 1..1 uri "minConfidence"
..... value[x] 0..1 decimal Value of extension
... url 1..1 uri "https://icr.healthcampaigns.org/StructureDefinition/building-count"

doco Documentation for this format

Snapshot View

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension Building Count
... id 0..1 string Unique id for inter-element referencing
... Slices for extension 2..* Extension Extension
Slice: Unordered, Open by value:url
.... extension:source S 1..1 Extension osm | overture | google-open-buildings | microsoft | …
..... id 0..1 string Unique id for inter-element referencing
..... extension 0..0 Extension
Slice: Unordered, Open by value:url
..... url 1..1 uri "source"
..... value[x] 0..1 CodeableConcept Value of extension
Binding: ICR Building Footprint Source (extensible)
.... extension:count S 1..1 Extension Footprints inside the boundary
..... id 0..1 string Unique id for inter-element referencing
..... extension 0..0 Extension
Slice: Unordered, Open by value:url
..... url 1..1 uri "count"
..... value[x] 0..1 unsignedInt Value of extension
.... extension:date S 0..1 Extension Dataset release / extraction date (YYYY-MM or YYYY-MM-DD)
..... id 0..1 string Unique id for inter-element referencing
..... extension 0..0 Extension
Slice: Unordered, Open by value:url
..... url 1..1 uri "date"
..... value[x] 0..1 date Value of extension
.... extension:minConfidence 0..1 Extension Detection confidence threshold applied (0–1), e.g. 0.6 / 0.7 / 0.8 for Google Open Buildings
..... id 0..1 string Unique id for inter-element referencing
..... extension 0..0 Extension
Slice: Unordered, Open by value:url
..... url 1..1 uri "minConfidence"
..... value[x] 0..1 decimal Value of extension
... url 1..1 uri "https://icr.healthcampaigns.org/StructureDefinition/building-count"

doco Documentation for this format

This structure is derived from Extension

Summary

Complex Extension: The number of building footprints inside a Location's boundary according to one footprint dataset — a locate/enumerate attribute of the area, like its boundary, not a programme figure. Repeatable: one entry per source (and, for detection datasets, per confidence threshold), each dated, so OSM, Overture and Google Open Buildings counts sit side by side and are never mistaken for one another. Used for microplanning sanity checks (buildings vs. population, households vs. buildings) on catchments, settlements and admin units (catchments round, Sep 2026).

  • source: CodeableConcept: An Extension
  • count: unsignedInt: An Extension
  • date: date: An Extension
  • minConfidence: decimal: An Extension

 

Other representations of profile: CSV, Excel, Schematron

Terminology Bindings

Path Status Usage ValueSet Version Source
Extension.extension:source.​value[x] Base extensible ICR Building Footprint Source 📦0.1.0 This IG

Constraints

Id Grade Path(s) Description Expression