These guidelines should be applied to new content. While there are many terms in the existing content that are not in compliance with this guidance, the process of correcting existing content will be carried out as time and resources permit.
The Editorial Guide provides the information necessary to model terms in SNOMED CT. It is for those who edit content in the International Release, but it may also be useful to those creating extensions. It is a working document, subject to change and revision.
SNOMED CT is distributed in sets of electronic files. Supporting software tools are not necessarily provided directly by SNOMED International.