The invention relates to an enclosure of the type including a base (6), at least one side wall (7) and an upper lid (8) defining a decontamination volume (9), wherein one of said side walls (7) comprises an access opening (10) to the decontamination volume (9) extending up to the upper lid (8), the upper lid (8) including a cable passage (12) open towards said opening and a cable suspension member (14) through said cable passage. The enclosure includes a means (18) for reading an electronic identification label (17) provided on a cable (5) of the medical instrument.