Something used in delivering the service without being substantially affected by the service (i.e. durable or inert with respect to that particular service.) Examples are: monitoring equipment, tools, but also access/drainage lines, prostheses, pace maker, etc.
Legenda: Type L=leaf, S=specializable, A=abstract, D=deprecated. NullFlavor OTH (other) suggests text in originalText. HL7 V3: NullFlavors to appear in @nullFlavor attribute instead of @code.