- 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.
Since the lower GI endoscopy CPT code set is changing for CY 2015, including the deletion of some of the CY 2014. codes, CMS is creating G-codes for 10 lower GI endoscopy services to allow practitioners to report services provided. to Medicare beneficiaries in CY 2015 the same way they did in CY 2014.