Implementation guide for digital medicines

This guidance is under active development by NHS Digital and content may be added or updated on a regular basis.

Data Requirements

dm+d

The dm+d data fields used for this process are;

VTM VMP VMP-VPI VMP-FORM VMP-ROUTE AMP
VTMID VTMID
VPID VPID VPID VPID VPID
NM NM NM
INVALID INVALID INVALID
PRES_STAT
NON_AVAILCD
UDFS
UDFS_UOMCD
UNIT_DOSE_UOMCD
STRNT_NMRTR_VAL
STRNT_NMRTR_UOMCD
STRNT_DNMTR_VAL
STRNT_DNMTR_UOMCD
FORMCD ROUTECD

Together with the FORM, ROUTE, UNIT_OF_MEASURE and PRESCRIBING_STATUS vocabularies from the dm+d LOOKUP data.

When dm+d data is imported into a relational database, concepts marked as INVALID or VMP concepts flagged as no actual products available may be excluded from the import.

Mapping between UCUM and SNOMED/dm+d

The following mapping table needs to be available to the implementing system. It is required to identify the units of measure within the UCUM standard that use different different codes to the dm+d.

For example g is a UCUM code for "gram" and the equivalent within dm+d is gram|258682000 so a mapping is required to associate g with the SNOMED code 258682000. This mapping table may need to be extended within a local implementation depending on which UCUM units are to be expected.

SNOMED/dm+d code UCUM unit
258683005 kilogram
258682000 g
258684004 milligram
258686002 ng
258685003 ug
258773002 milliliter
258770004 liter
258770004 l

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