Flex Code Set

A flex code set is a group of flex code definitions. Use it to add a field to a table that can have a value that can belong to one of multiple flex code definitions.

Table 1. Flex Code Set

Field	Description
Code	The identifying code of flex code definition
Description	A description of this flex code definition
List of code definitions	The code definitions that belong tho this set

It is possible for a dynamic field to refer to a flex code set, rather than a flex code definition. If this is the case, then any flex code from any of the definitions under that set is an allowed value for that dynamic field.

Procedure and diagnosis codes are always defined by a flex code set, because the common case is that multiple standards for those codes exist (ICD-9, ICD-10, CPT).