Police and other agencies use 10 codes to verbally communicate efficiently. The word ten (10) indicates the next number, or numbers, is code.
| 10-1 | Unable Copy - Change Location |
| 10-2 | Signal Good |
| 10-3 | Stop Transmitting |
| 10-4 | Acknowledgment (OK) |
| 10-5 | Relay |
| 10-6 | Busy - Unless Urgent |
| 10-7 | Out of Service |
| 10-8 | In Service |
| 10-9 | Repeat |
| 10-10 | Fight In Progress |
| 10-11 | Dog Case |
| 10-12 | Stand By (Stop) |
| 10-13 | Weather-Road Report |
| 10-14 | Prowler Report |
| 10-15 | Civil Disturbance |
| 10-16 | Domestic Problem |
| 10-17 | Meet Complainant |
| 10-18 | Quickly |
| 10-19 | Return to _____ |
| 10-20 | Location |
| 10-21 | Call ( ) by Phone |
| 10-22 | Disregard |
| 10-23 | Arrived at Scene |
| 10-24 | Assignment Completed |
| 10-25 | Report in Person (Meet) |
| 10-26 | Detaining Subject, Expedite |
| 10-27 | (Drivers) License Information |
| 10-28 | Vehicle Registration Information |
| 10-29 | Check for Wanted |
| 10-30 | Unnecessary Use of Radio |
| 10-31 | Crime in Progress |
| 10-32 | Man with Gun |
| 10-33 | Emergency |
| 10-34 | Riot |
| 10-35 | Major Crime Alert |
| 10-36 | Correct Time |
| 10-37 | (Investigate) Suspicious Vehicle |
| 10-38 | Stopping Suspicious Vehicle |
| 10-39 | Urgent - Use Light, Siren |
| 10-40 | Silent Run - No Light, Siren |
| 10-41 | Beginning Tour of Duty |
| 10-42 | Ending Tour of Duty |
| 10-43 | Information |
| 10-44 | Permission to Leave ___for___ |
| 10-45 | Animal Carcass at ___ |
| 10-46 | Assist Motorist |
| 10-47 | Emergency Road Repair at ___ |
| 10-48 | Traffic Standard Repair at ___ |
| 10-49 | Traffic Light Out at ___ |
| 10-50 | Accident (F-Fire, PI-Personal Injury, PD-Property Damage) |
| 10-51 | Wrecker Needed |
| 10-52 | Ambulance Needed |
| 10-53 | Road Blocked at ___ |
| 10-54 | Livestock on Highway |
| 10-55 | Intoxicated Driver |
| 10-56 | Intoxicated Pedestrian |
| 10-57 | Hit and Run (F-Fire, PI-Personal Injury, PD-Property Damage) |
| 10-58 | Direct Traffic |
| 10-59 | Convoy or Escort |
| 10-60 | Squad in Vicinity |
| 10-61 | Personnel in Area |
| 10-62 | Reply to Message |
| 10-63 | Prepare Make Written Copy |
| 10-64 | Message for Local Delivery |
| 10-65 | Net Message Assignment |
| 10-66 | Message Cancellation |
| 10-67 | Clear for Net Message |
| 10-68 | Dispatch Information |
| 10-69 | Message Received |
| 10-70 | Fire Alarm |
| 10-71 | Advise Nature of Fire |
| 10-72 | Report Progress on Fire |
| 10-73 | Smoke Report |
| 10-74 | Negative |
| 10-75 | In Contact with ___ |
| 10-76 | En Route ___ |
| 10-77 | ETA (Estimated Time of Arrival) |
| 10-78 | Need Assistance |
| 10-79 | Notify Coroner |
| 10-80 | Chase in Progress |
| 10-81 | Breatherlizer Report |
| 10-82 | Reserve Lodging |
| 10-83 | Work School Crossing at ___ |
| 10-84 | If Meeting ___ Advise ETA (Estimated Time of Arrival) |
| 10-85 | Delay due to ___ |
| 10-86 | Officer / Operator on Duty |
| 10-87 | Pickup / Distribute Checks |
| 10-88 | Present Telephone # of ___ |
| 10-89 | Bomb Threat |
| 10-90 | Bank Alarm at ___ |
| 10-91 | Pick Up Prisoner / Subject |
| 10-92 | Improperly Parked Vehicle |
| 10-93 | Blockade |
| 10-94 | Drag Racing |
| 10-95 | Prisoner / Subject in Custody |
| 10-96 | Mental Subject |
| 10-97 | Check (Test) Signal |
| 10-98 | Prison / Jail Break |
| 10-99 | Wanted / Stolen Indicated |
| 10-101 | What is Status? (Are you secure?) |
| 10-106 | Secure (Status is secure) |