This case-sensitive code system http://fhir.ch/ig/ch-lab-order/CodeSystem/ServiceRequest.categories defines the following codes:

Code	Display	Definition
RequestForLabExam	Anforderung von Laboruntersuchungen	Electronic ordering of laboratory tests and/or panels
RequestForAdditionalExam	Nachverordnung von weiteren Laboruntersuchungen bei derselben Probe	Electronic ordering of additional laboratory tests for referenced specimen
RequestForPrecedentReport	Anforderung vorangehender Laborberichte	Electronic ordering of laboratory diagnositic reports
RequestForPrecedentReportAndImages	Anforderung vorangehender Bilddokumente	Electronic ordering of laboratory images
RequestFor2ndOpinion	Anforderung einer Zweitmeinung	Electronic ordering of 2nd opinion
ProposalForAdditionalExam	Vorschlag für weitere Untersuchungen	Electronic proposal for additional exam
RequestForHistopathExam	Anforderung von histopathologischen Untersuchungen	Electronic ordering of histopathologic tests and/or panels