Primary Key Value - CDM

Definition: This field contains the code assigned by the institution for the purpose of uniquely identifying the thing that can be charged. The key field of the entry. For example, this field would be used to uniquely identify a procedure, item, or test for charging purposes. Probably the same set of values as used in FT1-7 transaction code in financial messages. Must match MFE-4-primary key value-MFE. User-defined table 0132 - Transaction code is used as the HL7 identifier for the user-defined table of values for this field. See Chapter 7 for discussion of the universal service ID.