- A bladder ultrasound is performed and if any urine is present the patient is asked to void into a jug and this is measured. The difference between the volume in the bladder according to the scan and the volume of voided urine gives the residual volume;
It might be best to start by showing you exactly where these new G codes will go on the claim form. See pic below. Where the codes go. Highlights (refer to the pic above of a physical therapy billing g codes on a claim): 1  The G codes go in the same column as your CPT codes but do not carry with it any charges. 2  The C modifier goes into one of the four âmodifiersâ column.
We have been billing a lot of the Annual Wellness visits G0438 and G0439 (dx: V70.0). We have also been doing an Evalualtion & Mgmt code 99213 with diagnostic codes with either of these visits, using a modifier 25 on the E& M code.