Code Blue may refer to:

• Code Blue (emergency code), a hospital code used to indicate a patient requiring immediate resuscitation
• Code Blue (film), a 2011 Dutch film by Urszula Antoniak
• Code Blue (TV series), a Japanese drama series
• Code Blue (album), a 1990 album by Icehouse
• Code Blue (bull), #644, a world champion bucking bull
• Code Blue – Emergency, a 1987 science fiction novel by James White
• Code: Blue, a fictional organization in the Marvel Universe
• "Code Blue", a song by T.S.O.L. from Dance with Me

Look up code blue in Wiktionary, the free dictionary.

• Blue Code of Silence or blue wall of silence, a purported rule among police not to report on colleagues' misconduct

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