This code system https://fhir.nhs.uk/CodeSystem/Ambulance-ClinicalTriageTool defines the following codes:

CodeDisplay
01Manchester Triage System - Face-to-Face
02Manchester Triage System - via Telephone / Remote Triage
03Paramedic Pathfinder - Medical
04Paramedic Pathfinder - Trauma
05Major Trauma Pathfinder / Pathway / Triage Tool
06Mass Casualty Triage Sieve / NASMeD Triage Sieve (Primary Triage)
07SMART Triage Sort (Secondary Triage)
08Toxic Triage Sieve
09Paediatric Triage Tape Tool
10Modified Triage Sieve (NARU)
11Silver Trauma Triage Tool
12NaRT - Nursing & Residential Triage Tool
13Odyssey Triage System
14Low Acuity & Triage / ECN (AMPDS)
15NHS Pathways