Coding for physician services doesn’t always match coding for facility services, which can cause problems for coders who code records for both. ED E/M is one area where different rules come into play.
When CMS introduced the -X{EPSU} modifiers in August 2014 to be used in specific instances to replace modifier -59 (distinct procedural service), the agency encouraged "rapid migration" to the new modifiers.
Coders select E/M levels based on criteria developed by their organization. CMS has proposed a significant change to E/M coding-replacing the current 20 E/M levels for new patients, existing patients, and ED visits with three G codes-but that change would only apply to Medicare patients and only to the facility side.
Coders can find the largest number of new codes in the pathology and laboratory section of the 2012 CPT® Manual . The AMA added a total of 103 new codes, 101 of which denote Tier 1 and Tier 2 molecular path-ology procedures.
