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| CodedValue | text | Value of the enumerated item (as it would occur in clinical data). | |
| DataTypeRank | float | (optional) | Numeric significance of the CodeListItem relative to others in the CodeList. Rank is optional, but if given for any EnumeratedItems in a CodeList it must be given for all. |
| OrderNumber | integer | (optional) | Ordering on the Items (within a containing EnumeratedItem) for use whenever a list of Items is presented to a user. OrderNumber is optional, but if given for any EnumeratedItems in a CodeList it must be given for all. |
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