Summary & Overview
CPT 50065: Nephrolithotomy to Remove Renal Calculus
CPT code 50065 denotes a nephrolithotomy performed as a secondary procedure to remove renal calculus. As a surgical code for kidney stone removal, it is relevant across inpatient and ambulatory surgical settings and has implications for surgical billing, care coordination, and payer coverage determinations nationwide. The code matters because nephrolithotomy procedures can involve significant resource use, specialty surgical teams, and potential post-operative care needs.
Key payers covered in this overview include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find clinical context for when CPT code 50065 is used, the typical sites of service, and an outline of what to expect in payer coverage discussions. The publication provides benchmarks and policy context where available, highlights common billing considerations, and summarizes operative intent and clinical scenarios in which a secondary nephrolithotomy is coded.
This summary equips coding specialists, surgical teams, and revenue cycle professionals with a concise reference to the code's clinical purpose and payer landscape. Data not available in the input is identified explicitly; the document does not fabricate missing details and focuses on nationally applicable information rather than state-specific guidance.
Billing Code Overview
CPT code 50065 describes a nephrolithotomy performed as a secondary procedure to remove renal calculus (kidney stone). Calculus refers to the accumulation of mineral salts or other materials in the kidney that form a stone; this procedure removes that stone when indicated.
Service type: Surgical procedure — open or percutaneous renal stone removal as a secondary operative intervention
Typical site of service: Hospital operating room or ambulatory surgical center, depending on clinical complexity and patient factors.
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Clinical & Coding Specifications
Clinical Context
A 52-year-old male presents with severe right-sided flank pain, hematuria, and recurrent urinary tract infections. Imaging (non-contrast CT KUB) demonstrates a 2.8 cm staghorn calculus occupying the renal pelvis and extending into multiple calyces of the right kidney. Conservative measures and less invasive stone removal attempts (extracorporeal shock wave lithotripsy and ureteroscopy) were unsuccessful due to stone size and location. The patient is scheduled for a percutaneous nephrolithotomy as a secondary corrective procedure to remove the calculus. The typical clinical workflow includes preoperative evaluation (labs, coagulation status, urine culture), informed consent, placement of the patient in prone or supine position in the operating room, percutaneous access to the renal collecting system under fluoroscopic and/or ultrasound guidance, tract dilation, fragmentation and extraction of stone fragments, placement of nephrostomy tube or ureteral stent as indicated, and postoperative monitoring with imaging and pain control. Usual sites of service are the hospital inpatient or outpatient surgical suite, and an ambulatory surgery center when appropriate.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when work or resources required are substantially greater than typical for 50065, documented with justification. |