Ten Codes
Reverse Ten Codes
Industry Language
Reverse Industry Language
Codes
100

10-4

Acknowledgement

100
Loud and Clear

10-2

100

No

Negative

100

Vehicle

Car

100

Code 4

No further assistance needed

200

10-21

Telephone

200

Busy

10-6

200

Yes

Affirmative

200

Failed to

Didn't

200

Code 3

Red light and siren in operation

300

10-32

Gun

300

Meet with

10-25

300

Where?

Location

300

Refuses

Won't

300

Code 5

Surveillance

400

10-96

Mental Subject

400

All Accidents

10-50
400

Tell

Broadcast/Advise (BC/ADV)

400

DOA/Code 50

Dead

400

Code Zebra

Jail Break

500

10-78

Officer needs Code 3 assistance

500

Prisoner in Custody

10-95

500

Fighting

Physical Distr/10-10/10-16

500
TPO

Restraining Order

500

J3

Prisoner