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Clinical user interfaces should be designed to make it as easy as possible to find the most appropriate code, and as difficult as possible to enter the wrong code. There are a variety of ways to improve the ease and effectiveness of data entry using SNOMED CT – such as searching over all synonyms, confirming the selected concept using the preferred term or fully specified name, ordering value lists effectively using an ordered reference set, searching using navigation hierarchies, and constraining data entry using subsets.

Footnote Macro

SNOMED CT Search and Data Entry Guide, 2014,

 These techniques can also help to reduce data entry errors by prohibiting invalid input, helping the user to understand the correct meaning of the code selected, and ordering value lists in a clinically safe order (e.g. ordering medications by strength, rather than alphabetically).