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Official Description

Renal autotransplantation, reimplantation of kidney

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

Renal autotransplantation, as described by CPT® Code 50380, is a surgical procedure in which a patient's kidney is removed from its original anatomical location and reimplanted into a different site, typically the parapsoas fossa. This procedure is performed when there is a need to relocate the kidney due to various medical conditions affecting its function or position. The process begins with the identification and incision of the lateral line of Toldt, which allows for the mobilization of the peritoneum over the kidney, enabling visualization of its anterior surface. The colon is then mobilized and repositioned medially to provide better access to the kidney. During the procedure, the surgeon carefully dissects the kidney from its surrounding structures, including the colorenal ligaments and Gerota's fascia, while ensuring that the ureter and vascular structures are adequately retracted to expose the renal hilum. The lower pole of the kidney is partially mobilized, and the renal artery and vein are meticulously dissected free from surrounding tissues. It is crucial to leave certain attachments intact to prevent torsion and vascular damage. After the kidney is removed, it is prepared for reimplantation, which involves creating an incision in the lower abdomen to access the retroperitoneal space and the iliac vessels. The anastomosis of the renal artery and vein to the iliac vessels is a critical step in this procedure, ensuring proper blood flow to the reimplanted kidney. The ureter is also anastomosed to the bladder, with careful attention to the length and orientation to maintain patency. Throughout the procedure, drains may be placed as necessary, and the incisions are closed to complete the surgery. This complex surgical intervention requires a thorough understanding of renal anatomy and vascular connections to ensure successful outcomes for the patient.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure of renal autotransplantation, as defined by CPT® Code 50380, is indicated for various medical conditions that necessitate the relocation of a kidney. These indications may include:

  • Kidney Tumors - The presence of tumors that may require nephrectomy and subsequent reimplantation of the kidney.
  • Trauma - Situations where the kidney has been injured and needs to be repositioned for better vascular access or to avoid further damage.
  • Congenital Anomalies - Conditions present at birth that affect the normal positioning or function of the kidney.
  • Vascular Complications - Issues such as renal artery stenosis or thrombosis that may necessitate relocation to restore proper blood flow.

2. Procedure

The renal autotransplantation procedure involves several detailed steps to ensure successful removal and reimplantation of the kidney:

  • Step 1: Identification and Incision - The surgeon begins by identifying the lateral line of Toldt and making an incision to mobilize the peritoneum over the kidney, allowing for visualization of the anterior surface.
  • Step 2: Mobilization of Surrounding Structures - The colon is mobilized and rolled medially to provide access to the kidney. The colorenal ligaments are divided, and Gerota's fascia is exposed to facilitate further dissection.
  • Step 3: Exposure of the Renal Hilum - The ureter and surrounding vascular structures are identified and retracted, exposing the lower pole of the kidney and the renal hilum. The lower pole is partially mobilized to allow for better access.
  • Step 4: Dissection of Vascular Structures - The renal vein is exposed, and the gonadal, lumbar, and adrenal veins are clipped and divided. The renal artery is then identified and dissected free from surrounding tissue.
  • Step 5: Removal of the Kidney - The kidney is dissected free from its lateral and inferior attachments, and the vascular pedicle containing the renal artery and vein is divided. The kidney and ureter are then removed from the body.
  • Step 6: Preparation for Reimplantation - The kidney is prepared for reimplantation into the parapsoas fossa or another site. An incision is made in the lower abdomen, and the transversalis fascia is incised to enter the retroperitoneal space.
  • Step 7: Dissection of Iliac Vessels - The peritoneum is retracted medially to expose the iliac vessels, and surrounding lymphatic vessels are ligated and divided. The iliac vessels are dissected free from surrounding tissue.
  • Step 8: Anastomosis of Vessels - Vascular clamps are applied, and the external iliac vein is incised. The prepared renal vein is anastomosed to the external iliac vein, and the renal artery is anastomosed to either the internal or external iliac artery.
  • Step 9: Ureter Anastomosis - The ureter is prepared for anastomosis to the bladder. The dome of the bladder is exposed and incised, and the ureter is trimmed and spatulated to match the bladder opening.
  • Step 10: Closure - The mucosa of the bladder and ureter are anastomosed, followed by closure of the detrusor muscle layer over the ureter. A temporary stent may be placed to ensure patency at the anastomosis site. The kidney is then placed in the parapsoas fossa, ensuring no kinking of the blood vessels or ureter, and drains are placed as needed before closing the incisions.

3. Post-Procedure

After the renal autotransplantation procedure, patients typically require careful monitoring and post-operative care to ensure proper recovery. Expected recovery may involve managing pain, monitoring for signs of infection, and ensuring that the kidney is functioning properly in its new location. Patients may need to stay in the hospital for a few days for observation, and follow-up appointments will be necessary to assess kidney function and the success of the anastomosis. Additional considerations may include the management of any temporary stents placed during the procedure and adherence to prescribed medications to prevent complications such as rejection or thrombosis.

Short Descr RNL AUTOTRNSPLJ RIMPLTJ KDN
Medium Descr RENAL AUTOTRANSPLANTATION REIMPLANTATION KIDNEY
Long Descr Renal autotransplantation, reimplantation of kidney
Status Code Active Code
Global Days 090 - Major Surgery
PC/TC Indicator (26, TC) 0 - Physician Service Code
Multiple Procedures (51) 2 - Standard payment adjustment rules for multiple procedures apply.
Bilateral Surgery (50) 0 - 150% payment adjustment for bilateral procedures does NOT apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 2 - Payment restriction for assistants at surgery does not apply to this procedure...
Co-Surgeons (62) 1 - Co-surgeons could be paid, though supporting documentation is required...
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Inpatient Procedures, not paid under OPPS
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P1G - Major procedure - Other
MUE 1
CCS Clinical Classification 105 - Kidney transplant
22 Increased procedural services: when the work required to provide a service is substantially greater than typically required, it may be identified by adding modifier 22 to the usual procedure code. documentation must support the substantial additional work and the reason for the additional work (ie, increased intensity, time, technical difficulty of procedure, severity of patient's condition, physical and mental effort required). note: this modifier should not be appended to an e/m service.
53 Discontinued procedure: under certain circumstances, the physician or other qualified health care professional may elect to terminate a surgical or diagnostic procedure. due to extenuating circumstances or those that threaten the well being of the patient, it may be necessary to indicate that a surgical or diagnostic procedure was started but discontinued. this circumstance may be reported by adding modifier 53 to the code reported by the individual for the discontinued procedure. note: this modifier is not used to report the elective cancellation of a procedure prior to the patient's anesthesia induction and/or surgical preparation in the operating suite. for outpatient hospital/ambulatory surgery center (asc) reporting of a previously scheduled procedure/service that is partially reduced or cancelled as a result of extenuating circumstances or those that threaten the well being of the patient prior to or after administration of anesthesia, see modifiers 73 and 74 (see modifiers approved for asc hospital outpatient use).
62 Two surgeons: when 2 surgeons work together as primary surgeons performing distinct part(s) of a procedure, each surgeon should report his/her distinct operative work by adding modifier 62 to the procedure code and any associated add-on code(s) for that procedure as long as both surgeons continue to work together as primary surgeons. each surgeon should report the co-surgery once using the same procedure code. if additional procedure(s) (including add-on procedure(s) are performed during the same surgical session, separate code(s) may also be reported with modifier 62 added. note: if a co-surgeon acts as an assistant in the performance of additional procedure(s), other than those reported with the modifier 62, during the same surgical session, those services may be reported using separate procedure code(s) with modifier 80 or modifier 82 added, as appropriate.
78 Unplanned return to the operating/procedure room by the same physician or other qualified health care professional following initial procedure for a related procedure during the postoperative period: it may be necessary to indicate that another procedure was performed during the postoperative period of the initial procedure (unplanned procedure following initial procedure). when this procedure is related to the first, and requires the use of an operating/procedure room, it may be reported by adding modifier 78 to the related procedure. (for repeat procedures, see modifier 76.)
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
82 Assistant surgeon (when qualified resident surgeon not available): the unavailability of a qualified resident surgeon is a prerequisite for use of modifier 82 appended to the usual procedure code number(s).
GC This service has been performed in part by a resident under the direction of a teaching physician
LT Left side (used to identify procedures performed on the left side of the body)
RT Right side (used to identify procedures performed on the right side of the body)
Date
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2025-01-01 Changed Short and Medium Descriptions changed.
Pre-1990 Added Code added.
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