1. A computer-implemented method for mapping of medical code schemes, said method comprising: processing a plurality of coded concepts to determine a potential match between a code from a first code scheme in the plurality of coded concepts and a code from a second code scheme in the plurality of coded concepts; assigning a probability to each potential match of a code from the first code scheme and a code from the second code scheme; generating an alphanumeric indication of the probability of each potential match between the first code scheme and the second code scheme from the plurality of coded concepts; generating a graphical representation of the plurality of coded concepts; outputting the alphanumeric indication and the graphical representation to a user; and accepting user input to select a match between the first code scheme and the second code scheme.