As part of the proposed 2019 CMS changes in how Medicare will pay for Evaluation & Management (E/M) Codes, CMS has created a new code that may be “added-on” to each E/M code billed by any of ten specified medical specialties. The “add-on” code is GCG0X and its CPT descriptor is “Visit complexity inherent to E/M associated with endocrinology, rheumatology, …