In scope of the preanalytical management all marks
on requisition documents should consist of master codes
independent from a special LIS in a large group. Each LIS
must know these master codes but can also use its wellknown
old codes if a mapping table precedes the order
import process. A great benefit would be that each laboratory
could use the same well proven requisition documents
which results in further cost and error reduction. These
master codes could also be used for electronic order entry
between different LIS. This means not only the order import
process should use a mapping table but also the order
export process. All LIS would only use master codes when
communicating with each other. The master codes should
be stored in a centralized database which should include
preanalytical requirements/preparation of patient and
sample material, method information, measurement frequency,
reference values (sex, age or in veterinary medicine
animal species). Preferred and alternative sample material
should be defined. The data must be regularly updated