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

CodeSystem: ICR Travel Time Band

Official URL: https://icr.healthcampaigns.org/CodeSystem/icr-travel-time-band-cs Version: 0.1.0
Draft as of 2026-10-29 Computable Name: ICRTravelTimeBandCS

Accessibility strata for a population estimate: travel time to the service point (the catchment's facility, or the nearest facility), by mode. Computed on a friction surface (e.g. Crosscut / MAP accessibility models over WorldPop); the band edges follow the common 1 h / 4 h cut-offs.

This Code system is referenced in the content logical definition of the following value sets:

This case-sensitive code system https://icr.healthcampaigns.org/CodeSystem/icr-travel-time-band-cs defines the following codes:

CodeDisplayDefinition
walk-lt-1h Within 1 hour walking Less than one hour on foot.
walk-1h-4h 1 to 4 hours walking Between one and four hours on foot.
walk-gt-4h Over 4 hours walking More than four hours on foot.
drive-lt-1h Within 1 hour driving Less than one hour by motor vehicle.
drive-1h-4h 1 to 4 hours driving Between one and four hours by motor vehicle.
drive-gt-4h Over 4 hours driving More than four hours by motor vehicle.