I am taking the CPB course and still learning and I am a biller for WC claims and I have been getting denials for the anesthesia cpt code 01638 that either coding has added one of the PHYSICAL STATUS MODIFIER's (P1 thru P6) or has not added it. For Work comp charges is the PHYSICAL STATUS MODIFIER's needed? I have work comp insurances that will deny the code because it has the either has one of the modifiers with the code and then I get some that will deny because it does not have one of the modifiers. My manager states that these modifiers are only for Medicare charges and we should not be billing them to work comp charges. I am confused on what payer should be billed with these and what payer should not be billed. My research I have found is conflicting. some say medicare doesn't accept them and others say medicare does. Does anyone know the real answer to whom and how to use the PHYSICAL STATUS MODIFIER's? hope this is not confusing. ![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)