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    v1.0.30
    OpenPayerBilling CodesRepair Procedures on the KidneyCPT cpt-50432-percutaneous-nephrostomy-with-imaging-guidance
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    CPT 50432: Percutaneous Nephrostomy Catheter Placement with Imaging

    Medicare pays $900 on average nationally for this procedure.

    CPT code 50432 describes percutaneous placement of a nephrostomy catheter into the renal pelvis using ultrasound and/or fluoroscopy with radiological supervision and interpretation; the service commonly includes injection of contrast for a nephrostogram or ureterogram when performed. Service type: image-guided percutaneous urinary drainage procedure. Typical site of service: interventional radiology suite, hospital outpatient department, or similar facility where fluoroscopy/ultrasound imaging and radiologic interpretation are available.

    For related coverage guidance, see recent payer policy updates: Vafseo (vadadustat) for anemia in CKD on dialysis, Metabolic Disorders - Cysteamine (Oral) Products for Individual and Family Plans, Kerendia (finerenone) — Coverage Criteria.

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    Table of contents

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    Clinical & Coding Specifications

    Clinical Context

    A typical patient is an adult presenting with obstructive hydronephrosis and flank pain due to ureteral calculi, ureteral stricture, or extrinsic compression from malignancy. After diagnostic imaging (noncontrast CT or ultrasound) confirms dilatation of the renal collecting system with suspected obstruction, interventional radiology is consulted for urgent urinary diversion. The patient is positioned on the fluoroscopy table; ultrasound and/or fluoroscopy guidance is used to access the renal calyx percutaneously. Local anesthesia and conscious sedation or monitored anesthesia care are provided depending on clinical status and comorbidities. A nephrostomy catheter is placed into the renal pelvis to decompress the system and restore urinary drainage. Contrast may be injected to perform a nephrostogram and/or ureterogram to document anatomy and level of obstruction. Postprocedure radiological supervision and interpretation are completed, and the catheter is secured and connected to a drainage bag. Typical sites of service include the hospital interventional radiology suite, outpatient interventional radiology center, or emergency department with interventional services. The service type is image-guided percutaneous renal drainage with radiological supervision and interpretation, provided by interventional radiologists or urologists with image-guidance expertise.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    50392Insertion of indwelling nephroureteral stent, endoscopicMay be performed by urology as an alternative or subsequent internal drainage option after percutaneous nephrostomy
    50393Exchange or removal of indwelling nephrostomy tube/ catheterPerformed for maintenance or replacement of the percutaneous nephrostomy catheter placed with 50432
    74425Radiologic supervision and interpretation, retrograde pyelographyMay be performed adjunctively when delineating ureteral anatomy if contrast study is done via retrograde approach
    76942Ultrasonic guidance for percutaneous proceduresBilled when ultrasound guidance is used for percutaneous renal access alongside fluoroscopy
    74430Radiologic supervision and interpretation, ureteral imaging (antegrade/retrograde)Used when detailed antegrade nephrostogram/ureterogram images are performed during or after catheter placement

    Related Modifiers

    10 rows

    ModifierDescriptionWhen to Use
    26Modifier 26 (Professional Component) identifies and bills only the professional portion of a split service — the physician’s interpretation, report, and medical judgment — when the technical…- Use CPT Modifier -26 when you are billing only the professional component (PC) of a split‑bill eligible service—i.e., you performed the physician interpretation, medical judgment and prepared a…
    51Modifier –51 (Multiple Procedures) is used when the same provider performs multiple procedures in the same session to identify secondary, non‑exempt procedures and indicate payment reduction logic…- Use modifier -51 when the same provider performs multiple distinct procedures during the same patient encounter: report the highest‑valued procedure first (no modifier) and append -51 to…
    52Modifier ‑52 (Reduced Services) indicates that a service or procedure was partially reduced or omitted at the provider’s discretion, allowing reporting of the basic procedure number with a qualifier…- Use modifier -52 when a physician or qualified health professional electively reduces or omits part of a procedure or service (for example, performing fewer required views or omitting a portion of…
    53Modifier 53 (Discontinued Procedure) signals that a surgical or diagnostic service was begun by the physician but terminated because of extenuating circumstances that threatened the patient’s…- Use modifier -53 when a physician/qualified healthcare professional has started a surgical or diagnostic procedure (e.g., anesthesia administered, incision or scope insertion) and then discontinues…
    54Modifier ‑54 (“Surgical care only”) is appended to a CPT surgical procedure when the reporting surgeon performs the intraoperative (surgical) component but does not furnish the preoperative and/or…- Use modifier -54 when the reporting surgeon provided only the intraoperative (surgical) component of a procedure and preoperative and/or postoperative management has been or will be provided by…
    55Modifier –55 indicates the billing provider furnished only postoperative management for a procedure that has a global surgical period. According to AAPC, this modifier is appended to the same CPT…- Use modifier -55 when billing the same CPT surgical code that has a 10- or 90-day global period and you, as a provider other than the original surgeon, furnished ONLY postoperative management (no…
    59Modifier 59 indicates a distinct procedural service when two procedures that are not normally billed together are clinically and procedurally separate. The CPT definition (as reiterated by CMS)…- Use modifier -59 to report a distinct procedural service when documentation supports that the procedure reported is not normally billed together with another service on the same day because of a…
    62Modifier 62 indicates that two surgeons function as co‑surgeons, each performing distinct parts of the same primary surgical procedure. It is appended to the primary procedure code (and any…- Use modifier -62 when two surgeons act as co‑surgeons (both primary surgeons) on a single definitive primary procedure, each performing distinct parts of the same surgical procedure (append -62 to…
    76Modifier -76, Repeat Procedure or Service by Same Physician or Other Qualified Health Care Professional, is appended when the same provider performs an identical, medically necessary procedure or…- Use modifier -76 when the same physician or other qualified health care professional performs an identical procedure or service a second (or subsequent) time on the same date of service and the…
    79Modifier 79 indicates a surgical procedure performed during the postoperative global period of a prior surgery that is unrelated to the original procedure. Per AMA/CPT and CMS guidance, it is…- Use modifier 79 when the same physician (or same‑specialty physician in the same group) performs a surgical procedure during the postoperative global period of a prior surgery and the new procedure…

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    207P00000X
    208800000X
    363L00000X
    227900000X
    207RR0500X
    2251C2600X
    207YX0007X
    207VX0201X

    Related Payer Policy Updates

    Specialty: Nephrology1 / 3

    10 rows

    PolicyPayerEffective Date
    Vafseo (vadadustat) for anemia in CKD on dialysisCigna2026-08-15
    Metabolic Disorders - Cysteamine (Oral) Products for Individual and Family PlansCigna2026-08-15
    Kerendia (finerenone) — Coverage CriteriaBlue Cross Blue Shield - Iowa2026-08-05
    Voyxact (sibeprenlimab-szsl) — Prior authorization / medical necessity for primary IgA nephropathyColorado Rocky Mountain Health Plans2026-08-01
    Oxlumo (lumasiran) and Rivfloza (nedosiran) — Coverage Criteria (Ohio)Colorado Rocky Mountain Health Plans2026-08-01
    Korsuva (difelikefalin) — Medical Benefit Drug Coverage Criteria (Ohio)Colorado Rocky Mountain Health Plans2026-08-01
    Complement Inhibitors - EmpaveliCigna2026-08-01
    Tolvaptan (Jynarque)Cigna2026-08-01
    Nephrology - Filspari (sparsentan) coverageCigna2026-08-01
    Rivfloza (nedosiran) prior authorization for PH1UnitedHealthcare2026-08-01

    Related Codes

    CPT-50400-PYELOPLASTY-URETEROPELVIC-JUNCTION-REPAIR

    CPT 50400: Pyeloplasty, Ureteropelvic Junction Reconstruction

    CPT-50405-PYELOPLASTY-URETEROPELVIC-JUNCTION-RECONSTRUCTION

    CPT 50405: Pyeloplasty to Reconstruct Ureteropelvic Junction

    CPT-50430-PERCUTANEOUS-URETEROGRAM-NEPHROSTOGRAM-DIAGNOSTIC

    CPT 50430: Percutaneous Ureterogram/Nephrostogram with Contrast

    CPT-50431-NEPHROSTOGRAM-URETEROGRAM-CONTRAST-STUDY

    CPT 50431: Contrast Injection for Nephrostogram or Ureterogram

    CPT-50433-PERCUTANEOUS-NEPHROSTOMY-IMAGE-GUIDED-RENAL-DRAINAGE

    CPT 50433: Percutaneous Nephrostomy Catheter Placement

    CPT-50434-PERCUTANEOUS-NEPHROSTOMY-TO-NEPHROURETERAL-CONVERSION

    CPT 50434: Image-Guided Nephrostomy to Nephroureteral Catheter Conversion

    CPT-50435-PERCUTANEOUS-NEPHROSTOMY-CATHETER-EXCHANGE-IMAGE-GUIDANCE

    CPT 50435: Percutaneous Nephrostomy Catheter Exchange with Imaging

    CPT-50500-KIDNEY-WOUND-SUTURE-REPAIR

    CPT 50500: Kidney Wound Suture

    CPT-50520-NEPHROCUTANEOUS-PYELOCUTANEOUS-FISTULA-CLOSURE

    CPT 50520: Nephrocutaneous and Pyelocutaneous Fistula Closure

    CPT-50525-RENAL-FISTULA-CLOSURE-ABDOMINAL-APPROACH

    CPT 50525: Closure of Renal Fistula, Abdominal Approach

    Showing 1–10 of 12

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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