Durham Region Paramedic Services
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Durham EMS

   

Ontario Ambulance 10 Codes[edit]

10 codes

  • 10-3 All Vehicles stop Transmitting
  • 10-4 Acknowledged
  • 10-6 Busy-Stand by unless Urgent
  • 10-7 Arrived(or OUT of Service)
  • 10-8 Departed (or IN service)
  • 10-9 Repeat last Transmission
  • 10-13 Unable to reply (Relative near by etc.)
  • 10-19 Return to Base
  • 10-20 What's your Location
  • 10-21 Phone by Landline or Cellular
  • 10-25 Non-Violent Psychiatric Patient
  • 10-26 Call is cancelled
  • 10-27 Hostage Taking or SWAT Standby
  • 10-34 What's the Hospital status
  • 10-36 Emergency is CLOSED (Critical care Bypass)
  • 10-37 Emergency is OPEN to Code 3's only (ReDirect Considerations)
  • 10-38 Emergency is CLEAR
  • 10-50 Violent Psychiatric Patient
  • 10-100 Bomb Threat
  • 10-200 Have Police Attend (often abbreviated to 10-2's)
  • 10-2000 Send Police IMMEDIATELY

Priority Codes

  • CODE 1 Any non-important call
  • CODE 2 Scheduled call
  • CODE 3 Prompt call, not life threatening, lights and siren optional
  • CODE 4 Life Threatening, lights on, siren optional
  • CODE 5 Obviously dead (Rigidity, Decomposition, Vivisection, Decapitation...)
  • CODE 6 Legally dead
  • CODE 7 Unstaffed at station OR out of service
    *71 = No patient found
    *72 = Patient refused care/transport
    *73 = Patient expired [as in decease]
    *74 = Patient in police custody
    *75 = Transported by another ambulance
    *76 = Canceled before patient contact
  • CODE 8 Standby at location
  • CODE 9 Unit in for servicing (Not Usable)
  • CODE 19 non-essential call


The Canadian Triage and Acuity Scale (CTAS) has five levels:

Level 1: Resuscitation – Conditions that are threats to life or limb

Level 2: Emergent – Conditions that are a potential threat to life, limb or function

Level 3: Urgent – Serious conditions that require emergency intervention

Level 4: Less urgent – Conditions that relate to patient distress or potential complications that would benefit from intervention

Level 5: Non-urgent – Conditions that are non-urgent or that may be part of a chronic problem