Abreviations

ASAP - As Soon As Possible (just in case you don't know what it means).
MVA - Motor Vehicle Accident.
PDC - […]
VCB - Visual Contact Broken.

10-Codes

10-4 - Copy that, message received.
10-23 - On Scene (a police officer who has just joined the pursuit).
10-27 - […].
10-32 - Wanted (means that it's not the first time you break the law).
10-33 - Need assistance.
10-36 - Police unit traffic collision.
10-38 - Request ambulance.
10-42 - Traffic accident.
10-43 - Traffic tie up.
10-45 - Savage the suspect.
10-49 - […].
10-59 - Herding (leading the cops/suspect from place to place, like a group of animals).
10-67 - Spikebelt.
10-70 - Notify city engineering (when a pursuit breaker associated to the electricity management is broken).
10-73 - Roadblock.
10-75 - Rolling roadblock (on the suspect: one cop in front, one behind, one to the left and one to the right).
10-77 - Spikestrip roadblock.
10-83 - Set up quadrant (on the suspect: one cop in front, one behind, one to the left and one to the right used when cops want to set a secured perimeter to find you).
10-87 - Vehicle pursuit (pretty self explanatory: used by a police officer who has just started chasing a suspect).
10-96 - Traffic stop.

Codes & Conditions

Code 3 - Lights and sirens (Cops see you and are ready to chase you).
Code 6 - High-risk racer.

Condition 1 - Heat level one.
Condition 2 - Heat level two.
Condition 3 - Heat level three.
Condition 4 - Heat level four.
Condition 5 - Heat level five.

Additional notes & info

- I still have some codes meanings missing as I haven't found what they use them for. But any help regarding their use will be appreciated.
- Codes like 10-44 (request rhino) or 10-71 (request air support) haven't been used yet, or I haven't heard them, so I didn't include those…