1. A system, comprising: a computer processor; and an application executable by the computer processor, the application configured to implement a method, the method comprising: receiving data that is classified with a first code, the first code defined by a first version of a classification system, the first code to be re-classified to a second code that is defined by a second version of the classification system; searching a database of profiles for content that matches at least a portion of the data; sending the data to a converter system having one of the profiles that is associated with the content responsive to the searching; receiving, from the converter system, a mapping of the first code to the second code; updating a database of codes with results of the mapping; analyzing, over a duration of time, mapping activities performed by a coder via the converter system, the mapping activities including mapping of codes between the first version of the classification system and the second version of the classification system; determining an accuracy level of the mapping activities with respect to the coder; and updating a profile of the coder, based on the accuracy level, to include a proficiency of the coder with respect to a subject matter area that relates to the data.