Question 1) I found a few articles that say P1 to P5 modifiers are not recognized by Medicare. Is this true? is there a CMS article to back this up?

Question 2) This practice is doing Anesthesia billing for Gastro only, when a patient comes in for a colonoscopy or EGD is it necessary to code all non procedure related dx codes for example: Diabetes, Hypertension, Obesity

I don’t think these should be added as they have nothing to do with the procedure performed.