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Code (disambiguation)

Last updated April 02, 2026

A code is a rule for converting a piece of information into another object or action, not necessarily of the same sort.

Code (metadata), data elements whose allowable values can be represented as enumerated lists
Code point, a numerical value used in character encoding
Code.org, a non-profit organization and website that encourages U.S. school students to learn computer science
Coding theory, branch of mathematics and computer science dealing with data transmission
Executable code
Machine code, a sequence of instructions to a processor unit
Source code, a sequence of instructions written in some human-readable computer programming language
Bytecode, a sequence of instructions interpreted by software
<code></code>, an HTML element
Visual Studio Code, an integrated development environment app also known as "Code" for short

Code (coding theory), a subset of cardinality at least two of a Hamming space
Code (cryptography), device for hiding the meaning of a message
Code (semiotics), device to carry information in a verbal and/or nonverbal form
Code (set theory), set with a particular isomorphism to another set
Barcode, an optical, machine-readable representation of a numeric code that identifies the object to which it is attached
Baudot code, used in telegraphy
Diagnosis code, used to translate medical conditions into statistical codes, also used for the purpose of health care planning and reimbursement
Encoding (memory), storage and recalling of information by organisms
Genetic code, a correspondence between the structures of messenger RNA and proteins
Hospital emergency codes, used in hospitals worldwide to alert staff to various emergencies
ID code, an encoded identifier
Morse code, a method with which humans can transmit letters using only short and long pulses
Nomenclature codes, rulebooks of scientific naming convention
Serial code or serial number

Code (law), body of law written and enforced by a sovereign state
- Legal code (municipal), a body of law written by a regional or local governmental entity
Building code, set of rules that specify the minimum standards for constructed objects
Code name, a word or name used to refer to another name, word, project or person
Ethical code, adopted by a profession, by a governmental or quasi-governmental organ, or by a trade group or other organization
Code Parish in Latvia

Code (novel), a 2013 novel by Kathy Reichs
Code: The Hidden Language of Computer Hardware and Software , a 1999 book by Charles Petzold
Code and Other Laws of Cyberspace , a 1999 book by Lawrence Lessig
- Code: Version 2.0 , a 2006 update to Lessig's 1999 book
The Code (novel), a novel in the Nick Carter-Killmaster series

Code (band), English black metal band
Codes (band), Irish indie electronic band
The Code (band), ska punk band
Code (album), a 1987 album by Cabaret Voltaire
The Code (album), a 2016 album by Young Noble & Deuce Deuce, or the title song
The Code (EP), an EP by Monsta X
U;Nee Code or Code, the 2003 debut album by Korean pop singer U;Nee
"The Code" (King Von song), 2020
"Code" (song), a 2022 song by Offset and Moneybagg Yo
"The Code" (Nemo song), a 2024 song by Nemo
"Code", a 2001 song by Faithless from the album Outrospective

The Code (Australian TV series), a 2014–2016 Australian political drama
The Code (British TV programme), a 2011 British mathematics documentary series from BBC2
The Code (American TV series), a 2019 American military legal drama
The Code (game show), British game show
"The Code" (The Amazing World of Gumball), a 2016 episode
"The Code" (Fear the Walking Dead), a 2018 episode
"The Code" (Forever Knight), a 1995 episode
"The Code" (Smart Guy), a 1997 episode
The Code: Crime and Justice , a 2007 Australian legal documentary program
Code: Secret Room , 2016 South Korean TV series

Code (audio standard), or ΧΟΔΕ, high-fidelity audio disc brand developed by T-Bone Burnett
Motion Picture Production Code or Hays Code, the voluntary US films censorship guidelines from 1930 to 1968