566 Product/Service Substitution Code
Code indicating product or service substitution conditions.
- Type
 - Identifier (ID)
 - Length
 - Min 1 / Max 2
 - Codes
 | Code | Description | 
|---|
|  A | No Quantity or Unit of Measure Change Allowed | 
|  B0 | No Substitution Allowed | 
|  B1 | Supply any Binding if Edition Ordered Not Available | 
|  B2 | Supply Paper Binding if Edition Ordered Not Available | 
|  B3 | Supply Cloth Binding if Edition Ordered Not Available | 
|  B4 | Supply Library Binding if Edition Ordered Not Available | 
|  X | Equivalent Item Substitution | 
|  Y | Alternate Item Substitution Allowed | 
|  ZZ | Mutually Defined |