50434 Convert nephrostomy catheter
Also known as: nephrostomy conversion, externalization conversion, stent conversion
Conversion of a percutaneous nephrostomy (external drainage) to an internal ureteral stent for internal drainage only.
In Plain Language
conversion of external kidney tube to internal stent; change from external to internal drainage
Clinical Context
Used after successful treatment of obstruction to eliminate external drainage and allow internal drainage only.
RVU Breakdown
| Work RVU | 3.66 |
| Total RVU | 3.66 |
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 3.66, this code ranks in the 25th percentile among Surgery codes — 2.2x below the median (8.00). The highest wRVU in this category is 106.19.
Specialties
Frequently Asked Questions
What is CPT code 50434?
CPT 50434 (Convert nephrostomy catheter) is a Surgery code. Conversion of a percutaneous nephrostomy (external drainage) to an internal ureteral stent for internal drainage only.
What is the wRVU value for CPT 50434?
The work RVU for CPT 50434 is 3.66. This code is primarily used by Urology, Interventional Radiology.
When is CPT 50434 used?
Used after successful treatment of obstruction to eliminate external drainage and allow internal drainage only.
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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.