There are secret codes all around us, we hear them all of the time and in some cases see them too, but we do not take any notice of them because they are secret codes used by the authorities.

Below are just a few of those being used, probably in a building near you right now.

Names:

Code delta: can mean that there is a biological hazard – though who knows what that might be on a passenger ship.

Code Alpha: often means “medical emergency”.

Computer:

PEBKAC: Problem Exists Between Keyboard And Chair

PICNIC: Problem in chair – not in computer

ID 10 T Error:  ID 10 T is, of course, IDIOT

DR:

Doctor Brown:  is a code word often used in hospitals to alert security staff to a threat to personnel. If a nurse or doctor is in danger from a violent patient or non-staff member, they can page Doctor Brown to their location and the security staff will rush to their aid. In some hospitals

Dr. Allcome: Serious emergency. “Doctor Allcome to Ward 5.” would indicate that all medical staff not presently occupied are needed. (The Med, Memphis Tennessee)

Colours:

Code Gray/Grey

- A combative person with no weapon under HASC suggestions.

- Severe Weather (Cook Children’s Medical Center, Fort Worth, TX)

Code Pink

- Biohazardous contamination of a patient or staff. (Heartland Regional Medical Center)

- Patient is under influence of illegal substances (UK First Aid organisations)

Source [Up Haa]