Notes for the correspondence between Central Product Classification (CPC) Ver.1.1 and Prodcom 2002

The list of Prodcom codes includes combination (aggregation) codes, such as the "Z" or "Q" codes listed. 
Example: The code 17.40.12Q0 is the sum of 17.40.12.53, 17.40.12.55 and 17.40.12.59.

In some cases the combination codes as well as the individual components are listed in the correspondence. This may result in an inaccurate indication of the "partial link" flag for these records and should be taken into account.