Represents a coded term mapped to a DV_TEXT, and the relative match of the tar-
get term with respect to the mapped item. Plain or coded text items may appear in
the EHR for which one or mappings in alternative terminologies are required.
Mappings are only used to enable computer processing, so they can only be
instances of DV_CODED_TEXT.
Used for adding classification terms (e.g. adding ICD classifiers to SNOMED
descriptive terms), or mapping into equivalents in other terminologies (e.g.
across nursing vocabularies).
** BEWARE ** class attribute "purpose" is flagged as type DV_CODED_TEXT, which in turn
requires definition of TERM_MAPPING. This is problematic in C++.
Declaration :
Artifact : TERM_MAPPING
Relation target (<unidirectional association>) |
The target term of the mapping.
Declaration :
Attribut match |
The relative match of the target term with respect to the mapped text item.
Result meanings:
>': the mapping is to a broader term
e.g. orginal text = arbovirus infection , target = viral infection
=': the mapping is to a (supposedly) equivalent to the original item
<': the mapping is to a narrower term.
e.g. original text = diabetes , mapping = diabetes mellitus .
?': the kind of mapping is unknown.
The first three values are taken from the ISO standards 2788 ( Guide to
Establishment and development of monolingual thesauri ) and 5964
( Guide to Establishment and development of multilingual thesauri ).
Declaration :
Attribut purpose |
Purpose of the mapping e.g. automated data mining , billing , interoperability
Declaration :