Summary & Overview
CPT 50250: Kidney Cryoablation/Cryosurgery
CPT code 50250 represents cryoablation or cryosurgery of the kidney, a technique that destroys renal masses by applying extreme cold via a probe inserted into the kidney. Nationally, this code is significant for hospitals, ambulatory surgical centers, and interventional radiology practices that provide minimally invasive treatment options for renal tumors and lesions. The procedure is relevant for surgical oncology, urology, and interventional radiology service lines.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for the procedure, the typical sites of service, and which payer contracts commonly apply. The publication outlines what to expect in coverage considerations, common modifiers in billing practice, and how CPT code 50250 fits into the broader set of renal tumor treatments.
This report helps clinical administrators, coding professionals, and policy analysts understand the clinical purpose of the code and the operational settings where it is used. It also summarizes available benchmarks and policy-relevant topics where data are available, and notes when input data are not provided. Data not available in the input will be identified explicitly.
Billing Code Overview
CPT code 50250 describes cryoablation or cryosurgery of the kidney, a procedure that uses extremely low temperatures delivered through a probe containing liquid nitrogen to destroy a mass lesion, tumor cells, or cancer cells by freezing the targeted tissue. The procedure involves insertion of a cryoprobe into the kidney to introduce cold directly to the lesion.
Service type: Percutaneous or surgical cryoablation of renal lesion.
Typical site of service: Hospital operating room, ambulatory surgical center, or interventional radiology suite where image guidance and sterile operative conditions are available.
Clinical & Coding Specifications
Clinical Context
A 68-year-old male with a solitary 2.8 cm enhancing renal mass identified on abdominal CT is evaluated by a urologist and interventional radiologist. The patient has chronic kidney disease stage 3 and cardiac comorbidity that make partial nephrectomy higher risk. After multidisciplinary discussion the team elects percutaneous cryoablation of the renal tumor under CT or ultrasound guidance with conscious sedation or general anesthesia. Pre-procedure workflow includes informed consent, review of cross-sectional imaging to confirm lesion size and location, laboratory checks (including coagulation panel), and placement of monitoring and IV access. In the procedure suite, the interventional radiologist places cryoprobes percutaneously into the tumor using image guidance, performs freeze–thaw cycles to achieve an adequate ice-ball margin around the lesion, monitors adjacent structures with hydrodissection if needed, and obtains immediate post-ablation imaging to document extent of ablation and rule out complications. Post-procedure, the patient is observed in recovery, monitored for hematuria or bleeding, receives analgesia as needed, and is discharged with follow-up imaging scheduled to assess treatment response.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
11 | Normal, uncomplicated service | When the cryoablation is performed without unusual circumstances and constitutes the usual surgical service provided by the operating practitioner |