D'après la définition donnée, il s'agit d'un code indiquant quelle mesure sera prise en cas d'arrêt cardio-respiratoire. On parle donc de réanimation cardio-respiratoire/cardio-pulmonaire (RCP/RCR).
Le terme peut être rendu de différentes façons, pourvu qu'on garde le sens...

"Difficultés d’utilisation des codes de réanimation
Du côté du patient, la bonne compréhension des codes RCP et NTBR est nécessaire pour un choix entièrement autonome, ce qui n’est pas facile. Premièrement, la procédure de RCP, ses conséquences logistiques et son taux de succès sont méconnus de la population. Les chances de quitter l’hôpital en vie après un ACR intrahospitalier sont au mieux de 15-20 % tous patients confondus, et ceci depuis l’introduction de la RCP dans les années 1960. De plus, les données sur la morbidité des survivants post-ACR sont très pauvres."
https://www.revmed.ch/view/647096/5104490/RMS_573_1538.pdf

"DNR/DNI is an abbreviation for "do not resuscitate, do not intubate" and refers to a patient's code status. Each patient, on admission to a hospital, should be asked about his or her desires should a medical catastrophe require the use of code with "heroic measures.” These measures generally include (but may not be limited to) cardiac defibrillation, intubation with mechanical ventilation, and chest compressions. They may also include the use of vasopressors or inotropes to support circulation. Each patient may have different desires, and it is of utmost importance to determine these before any catastrophic event occurs.
A patient is considered to be full code, if they would like everything possible to be done in a code situation. A patient may also opt to be DNI, but not DNR, meaning they would like to be resuscitated until the point at which intubation is indicated. It is important to make sure the patient understands each of the code statuses so that he or she can make a fully informed decision. After the status is determined, it must be recorded within the medical documentation. In cases of emergency or if desires are unknown ahead of time, the default is to presume that patients are full code and would like to have everything possible done to extend their life.
DNR/DNI may be officially designated in different ways, depending on the institution and state laws. For example, in some areas variations of code status may be written as DNR-A or DNR-B."
Livre "Clinical Wards Secrets"

https://www.lemonde.fr/big-browser/article/2017/12/02/quand-...