912 Relation Code
Code specifying the type of relationship between data elements for the electronic form
- Type
 - Identifier (ID)
 - Length
 - Min 1 / Max 1
 - Codes
 | Code | Description | 
|---|
|  C | Conditional If first data element appears, then all must appear  | 
|  E | Exclusive Use Only one of the data elements may appear  | 
|  L | List Conditional If first data element listed in the relationship appears, then at least one of the following data elements must appear  | 
|  P | Paired If one data element appears, all must appear  | 
|  R | Required At least one of the data elements must appear  |