Walkie-talkie code for short bathroom break—derived from CB radio, enables discrete set communication without sharing details over air.
What does 10-1 mean?
10-1 is a walkie-talkie code for a brief restroom break. Originally from CB radio, this code allows for discreet communication on set – no one has to announce over the radio that they are going to the restroom.
The 10-Codes on a Film Set
| Code | Meaning |
|---|---|
| 10-1 | Brief restroom break |
| 10-2 | Extended break (also restroom) |
| 10-4 | Understood / Okay |
| 10-20 | Location ("What's your 10-20?") |
| 10-100 | Restroom break (alternative) |
Usage
Correct Application
| Situation | Radio Announcement |
|---|---|
| Briefly away | "10-1, back in 5" |
| Confirmation | "10-4, 10-1" |
| Inquiry | "Are you 10-1?" |
Why Codes?
| Reason | Description |
|---|---|
| Discretion | Maintain privacy |
| Efficiency | Short, clear communication |
| Professionalism | Industry standard |
| Clarity | Uniform meaning |
Origin
The 10-codes originate from CB radio (Citizens Band Radio) in the 1950s and were adopted by police, fire departments, and later the film industry. They enable fast, unambiguous communication.
Set Etiquette
| Rule | Description |
|---|---|
| Keep it brief | Say only what is necessary |
| Confirm | Always acknowledge with 10-4 |
| Clear channel | Prioritize important announcements |
| Discreet | Personal matters in codes |
Today
The 10-codes are a standard on sets worldwide – from Hollywood to German productions. They are part of the professional toolkit of every filmmaker.
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