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

Code may also refer to:

Computing

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 , an HTML element Visual Studio Code, an integrated development environment app also known as "Code" for short

Science and technology 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

Society and law 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

Arts, entertainment, and media Films The Code (2001 film), 2001 Linux documentary The Code (2002 film), French film Thick as Thieves (2009 film) or The Code, 2009 heist film

Literature Code (novel), 2013, 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), in the Nick Carter-Killmaster series

Music Code (band), English black metal band Codes (band), Irish indie electronic band The Code (band), ska punk band Code (album), 1987, by Cabaret Voltaire The Code (album), 2016, by Young Noble & Deuce Deuce, or the title song The Code (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), 2022, by Offset and Moneybagg Yo "The Code" (Nemo song), 2024, by Nemo "Code", a 2001 song by Faithless from the album Outrospective

Television 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

Video games Code (video game), a puzzle video game Konami Code, a cheat code which appears in mainly Konami video games

Other uses in arts, entertainment, and media 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

Sports and hobbies Code, any one of the distinct games known as football Code, a unit of scale in model railroading Rugby codes, distinguishing between rugby league and rugby union

See also CODE (disambiguation) Code mixing Code of conduct Code-switching (disambiguation) Code talker Codebook (disambiguation) Codec (disambiguation) Codex (disambiguation) Coding (disambiguation) Kode (disambiguation) Product code (disambiguation) Recode (disambiguation)