I have a question? When billing for pathology services for a procedure that was done in POS 24 are we to apply the modifier 26? Our office is receiving denials when billing for the services with a global. The denial states that the technical component was covered under the facility charges. When researching Medicare the only documentation I can find states when the POS is 21 or 22 the pathology lab may only bill for the professional component of a pathology. Can anyone assist me with this ?