50391 Instll prescription agnt into rnal tub
Also known as: renal instillation, intracavitary chemotherapy, sclerosant injection
Instillation of a therapeutic agent (medication, chemotherapy, or sclerosant) into a renal tube or catheter for treatment of intraluminal pathology.
In Plain Language
injection of medication into kidney tube; therapeutic injection into kidney
Clinical Context
Used for treatment of renal tumors, tuberculosis, fungal infections, or sclerosis of cysts via percutaneous nephrostomy.
RVU Breakdown
| Work RVU | 1.91 |
| Total RVU | 1.91 |
Est. Medicare Payment
National estimate based on 2026 CMS PFS Conversion Factor ($33.40). Actual payment varies by locality (GPCI adjustment).
Billing & Documentation
As a surgical CPT code, proper documentation must include the operative report detailing the procedure performed, patient positioning, approach, findings, and any complications. This code has a 0-day global period, meaning pre- and post-operative E&M visits are billable separately on the same day. Ensure the diagnosis code (ICD-10) supports medical necessity for the procedure.
How This Code Compares
With a work RVU of 1.91, this code ranks in the 13th percentile among Surgery codes — 4.2x below the median (8.00). The highest wRVU in this category is 106.19.
Specialties
Frequently Asked Questions
What is CPT code 50391?
CPT 50391 (Instll prescription agnt into rnal tub) is a Surgery code. Instillation of a therapeutic agent (medication, chemotherapy, or sclerosant) into a renal tube or catheter for treatment of intraluminal pathology.
What is the wRVU value for CPT 50391?
The work RVU for CPT 50391 is 1.91. This code is primarily used by Urology, Interventional Radiology, Oncology.
When is CPT 50391 used?
Used for treatment of renal tumors, tuberculosis, fungal infections, or sclerosis of cysts via percutaneous nephrostomy.
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CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.