Come Oct. 1, much of the record-keeping in the health care industry today will be irrelevant. Federal legislation has mandated all health care companies convert to a new classification system set by the World Health Organization which assigns a specific code for all medical conditions and treatments; those codes, in turn, determine how a claim is processed and billed. For some in the industry, the implementation will come with pain - mostly, in the form of dollar signs. According to a 2014 study...