code

Reader's Digest Dec., 2015号の記事 Miracles that Stanned Doctorsから抜粋します。
Dr Jordan Knurr, her anaesthesiologist at Boca Raton Regional Hospital in Florida, US immediately intubated Ruby so a machine could breathe for her. He call a code, and about a dozen other doctors and nurses crowded into the room, frantically giving advanced cardiac life support.
"call a code" の "code" が分からないので辞書を引きましたが、普通の辞書にはここでの意味にあたる説明は見あたりませんでした。そこで医学関係の辞書を見るとありました。
・Segen's Medical Dictionary: Emergency care True code noun A widely used, highly popular term for
(1) A cardiopulmonary arrest or other emergency requiring resuscitation and a coordinated all-hands-on-deck response on the part of medical personnel
(2) A call for personnel over the hospital’s PA system to respond to such an emergency
・MedicineNet.com: Code, hospital: While there is no formal definition for a "Code," doctors often use the term as slang to refer to a patient in cardiopulmonary arrest, requiring a team of providers (sometimes called a "code team") to rush to the specific location and begin immediate resuscitative efforts.
The term "Code" derives from the practice at many institutions of using "Code" designations followed by colors ("Code blue"), numbers ("Code 10") or other qualifying terms to alert personnel in the event of an emergency and to specify what type of emergency is occurring. (Code pink is often used to alert security that a baby is missing from the hospital nursery!)
There are no standard definitions or conventions for the use of "Code" designations, and each institution that uses a "Code" system can decide how to apply the system. For example, while "Code blue" refers to a cardiopulmonary arrest at many hospitals, it doesn't necessarily mean the same thing everywhere. Other types of emergencies, (for example bomb threats, terrorist activity, child abductions, or mass casualties) may also be given "Code" designations.
後者の辞書を見て思い出しました。昨年の４月１日に "code blue" を取り上げていて、"code blue" だと一般の辞書にも説明がありました。
・American Heritage Dictionary: A medical emergency in which a team of medical personnel work to revive an individual in cardiac arrest.
・Dictionary.com: (often initial capital letters) a medical emergency in which paramedics are dispatched to aid a person undergoing cardiac arrest.: Each resident has the opportunity to participate as a member of the code blue response team.
Wikipediaからの抜粋
"Code Blue" is generally used to indicate a patient requiring resuscitation or in need of immediate medical attention, most often as the result of a respiratory arrest or cardiac arrest. When called overhead, the page takes the form of "Code Blue, (floor), (room)" to alert the resuscitation team where to respond.