- 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.
The Centers for Medicare & Medicaid Services (CMS) established non-payable G-codes for reporting on claims for Medicare Part B beneficiaries receiving therapy services. Each non-payable G-code listed on the claim form must be accompanied with a severity/complexity modifier. The modifier represents the functional impairment on a 7-point severity/complexity scale.