General
code 0
What does code 0 mean?
EMS slang for a call that turns out to be trivial or a non-emergency.
"Dispatched lights-and-sirens for what was basically a code 0."
Origin
US EMS slang.
Frequently asked questions
What does 'code 0' mean in EMS?
It is ambulance-crew slang for a call that turns out to be trivial or not an emergency at all, mocking the idea that it deserved a priority response.
Is 'code 0' an official code?
No. It is informal EMS humour, not a formal dispatch category, and it plays on the higher-number codes used for real emergencies.
Where does it come from?
It comes from US emergency medical services slang.
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