In ICD-10-CM, the seventh character is used for ________

The following prescription is presented to the pharmacy: "Phenobarbital 1/4 gr (grain) tablets, dispense 120 tablets, Sig: take 4 tab po QHS, refills 5." The pharmacy has several strengths of phenobarbital on the shelf, all listed in milligram (mg)

strength. If one gr (grain) is equal to 65 mg, what strength tablets in milligrams (mg) should be dispensed? What is the total daily dose in milligrams the patient is taking?

Operative Note: Cystoscopy to remove small stones from the patient’s upper right ureter and another stone lodged in the middle left ureter. Both stones were manipulated back into the kidney with subsequent placement of double J ureteral stents in each ureter.

Identify the terms used to look up the code selection in the Alphabetic Index. Assign CPT codes to the case. If applicable, append CPT/HCPCS Level II modifiers.