Location & Communication
Crashes & Hazards
Emergency Situations
Vehicle & ID Checks
10-Codes Basics
100

What is 10-20?

Location Requested

100

What is 11-79? 

Traffic Crash - ambulance rolling

100

What is 10-35?

Officer needs back up, suspect is present

100

What is 10-28?

Request for registration

100

What is 10-4?

Message Received

200

What is 10-21?

Telephone

200

What is 11-80?

Traffic Crash - Major Injury

200

What is 11-99?

Officer requires help, emergency

200

What is 10-29?

Check for wants (person, vehicle, or object)

200

What is 10-7?

Out of service

300

What is 10-19?

Return to (specify location)

300

What is 11-82?

Traffic Crash - No Injury

300

What is 10-36A?

Confidential Information, subject possibly armed.

300

What is 11-27?

Driver License (DL) check

300

What is 10-9?

Repeat transmission

400

What is 10-23?

Stand by


400

What is 11-25?

Traffic Hazard (specify type)

400

What is 11-87?

Bomb found

400

What is 10-36M?

Confidential Information, possible misdemeanor wants

400

What is 10-6?

Busy, stand by

500

What is 10-37?

What time is it?

500

What is 11-66?

Defective traffic signals (describe)

500

What is 10-31?

Suicidal subject

500

What is 10-36P?

Confidential information, subject possibly on parole, probation, or post- release community supervision

500

What is 10-5?

Relay message