The first word in all descriptions should be capitalized, unless it would change the meaning (e.g. pH measurement). The rest of the words in the description should be lower case.
Although this is generally true, names of people, organizations, taxonomic groups (e.g. species, genus, family), abbreviations, and some other descriptions should have the proper case. The following values, part of the SNOMED CT model component domain, provide details.
|Case Sensitivity Indicator||Values||Meaning||Examples|
First letter of the description may or may not be capitalized; Cannot change the case of the rest of the description
|CS||Cannot change any case in the description|
Entire description may be lower case
Descriptions contain names of things which do not require either capitalization at the beginning of or anywhere else in any word, i.e. there are not proper names, abbreviations, or etc.
Case sensitivity can be changed on an existing description without inactivating it.
SNOMED CT descriptions representing assessment scales and staging systems should be capitalized per the name of the scale or staging system. Legacy concepts may not follow this pattern.
Fagerstrom test for nicotine dependence (assessment scale)
Gram staining is a common laboratory technique used to differentiate bacteria based on their cell wall constituents. Laboratory test results may be Gram positive or Gram negative. The technique was developed by a Danish physician, Hans Christian Gram. Consequently Gram, when referring to the technique, should always begin with an upper case G.