The following rules apply to all SNOMED CT Release Files.
- SNOMED CT Release Files are UTF-8 encoded, tab delimited text files.
- Each line, including the final line, ends with a carriage return character (hex 0D) followed by a line feed character (hex 0A).
- The first line of each file, contains the names of each column (also know more generally as a field).
- Field names are represented using lower-camel-case
- First letter of name is lower case
- First letter of each words apart from the first word in the name is upper case
- All other letters are lower case.
- For example:
- id
- term
- typeId
- relationshipGroup
- definitionStatusId
- The name, datatype and usage of the fields in each file are specified in the following sections of this guide
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