1. A method, comprising: receiving, by a computer processor, 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; and updating, by the computer processor, a database of codes with results of the mapping; analyzing, over a duration of time, the 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 the accuracy level of the mapping activities; and updating a profile of a coder to include a proficiency of the coder, wherein the proficiency of the coder is based on an accuracy level of mapping activities performed by the coder via the converter system.