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    v1.0.30
    OpenPayerBilling CodesRenal Transplantation ProceduresCPT cpt-50325-donor-kidney-back-table-preparation
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    CPT 50325: Living Donor Kidney Back Table Preparation

    CPT code 50325 describes preparation of a living donor kidney for transplantation via standard back table preparation, a surgical procurement service performed in the operating room or transplant suite as part of kidney transplant procedures; this represents the intraoperative organ preparation step that readies the donor kidney for implantation into the recipient.

    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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    Clinical & Coding Specifications

    Clinical Context

    A 45-year-old healthy living donor is evaluated and cleared for kidney donation. On the day of surgery, after laparoscopic or open nephrectomy, the donor kidney is brought to the operating room back table for preparation prior to implantation into the recipient. The transplant surgeon and scrub team perform bench preparation: inspection for perfusion, removal of residual perinephric fat, reconstruction or trimming of renal vessels and ureter, administration of preservation solution, flushing and back-table heparinization, and placement on ice in sterile preservation basin. The workflow includes documentation of donor identifiers, ischemia times (cold ischemia start), any vascular reconstruction performed on the back table, and communication with the implantation team. Typical facility settings are an operating room or transplant suite within an acute care hospital staffed by transplant surgeons, anesthesiologists, surgical technologists, and organ procurement/transplant coordinators. Relevant payors in typical payer discussions include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, BUCA, and Medicare.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    50240Living donor nephrectomy, open; unilateralPerformed immediately before back-table preparation of a living donor kidney
    50548Laparoscopy, surgical; donor nephrectomy (including cold preservation)Minimally invasive donor nephrectomy that precedes bench preparation of the kidney
    50320Kidney transplantation (from cadaver) including donor nephrectomy and bench workRelated transplant code for cadaveric kidneys; contrasts with 50325 which is living donor bench prep
    50327Kidney transplant, recipient; removal of kidney graft or removal and reimplantation proceduresProcedures performed on the recipient side following back-table preparation
    49585Application of prosthetic mesh for repair of ventral or incisional hernia; openCommonly reported in abdominal surgeries when incisions are closed after donor nephrectomy (contextual)

    Related Modifiers

    12 rows

    ModifierDescriptionWhen to Use
    22Modifier –22 (Increased Procedural Services) is used when a reported procedure is substantially more extensive than normally required. The CPT Manual and CMS state it may be appended only when the…- When to use: Append modifier -22 to a procedural CPT code when the service performed is substantially more extensive than the usual service described by that code — i.e., the procedure required…
    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…
    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…
    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…
    66Modifier 66 (Surgical Team) is used when three or more surgeons act as primary surgeons on a single, highly complex procedure. The AMA defines it for use when a surgical team — often composed of…- Use modifier 66 when three or more surgeons act as primary surgeons working collaboratively as a surgical team on a single, highly complex or difficult procedure (for example organ…
    78CPT modifier -78 indicates an unplanned, related return to the operating or procedure room by the same provider during the global postoperative period. It is appended when treatment for a…- Use modifier -78 when an unplanned, related complication during the original procedure’s global postoperative period requires the patient to return to a formal operating or procedure room and the…
    80CPT® Modifier 80 (Assistant Surgeon) is appended to a surgical CPT code when a physician (MD or DO) provides full, continuous assistance throughout the operative procedure. It is intended only for…- Use CPT Modifier -80 when a physician (MD or DO) serves as an assistant surgeon and provides full, continuous assistance throughout the entire operative procedure; append -80 to the surgical CPT…

    Showing 1–10 of 12

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    207L00000X
    207K00000X
    2084P0800X
    364SP2800X
    133VN1006X
    2085N0700X
    2085H0002X
    2084N0008X

    Related ICD-10-CM Codes

    26 rows

    ICD-10-CM CodeDescription
    E08.22Diabetes mellitus due to underlying condition with diabetic chronic kidney disease
    E09.21Drug or chemical induced diabetes mellitus with diabetic nephropathy
    E10.21Type 1 diabetes mellitus with diabetic nephropathy
    E11.21Type 2 diabetes mellitus with diabetic nephropathy
    E11.22Type 2 diabetes mellitus with diabetic chronic kidney disease
    I12.0Hypertensive chronic kidney disease with stage 5 chronic kidney disease or end stage renal disease
    I12.9Hypertensive chronic kidney disease with stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease
    N17.0Acute kidney failure with tubular necrosis
    N17.9Acute kidney failure, unspecified
    N18.1Chronic kidney disease, stage 1

    Showing 1–10 of 26

    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-50300-NEPHRECTOMY-KIDNEY-REMOVAL

    CPT 50300: Nephrectomy, Kidney Removal

    CPT-50320-NEPHRECTOMY-KIDNEY-REMOVAL

    CPT 50320: Nephrectomy, Removal of Kidney or Partial Kidney

    CPT-50323-CADAVER-DONOR-KIDNEY-BACK-TABLE-PREPARATION

    CPT 50323: Donor Kidney Back Table Preparation (Cadaver)

    CPT-50327-RENAL-VEIN-BACKBENCH-RECONSTRUCTION

    CPT 50327: Backbench Venous Reconstruction of Donor Kidney

    CPT-50328-ARTERIAL-ALLOGRAFT-PREPARATION-FOR-KIDNEY-TRANSPLANT

    CPT 50328: Arterial Allograft Preparation for Kidney Transplant

    CPT-50329-RENAL-ALLOGRAFT-PREPARATION-WITH-ARTERIAL-ANASTOMOSIS

    CPT 50329: Renal Allograft Preparation with Arterial Joining

    CPT-50340-NEPHRECTOMY-KIDNEY-REMOVAL

    CPT 50340: Nephrectomy, Kidney Removal

    CPT-50360-KIDNEY-AND-URETER-TRANSPLANTATION

    CPT 50360: Kidney and Ureter Transplantation

    CPT-50365-KIDNEY-TRANSPLANT-WITH-RECIPIENT-NEPHRECTOMY

    CPT 50365: Kidney and Ureter Transplant with Recipient Nephrectomy

    CPT-50370-KIDNEY-ALLOGRAFT-EXPLANTATION-DUE-TO-REJECTION

    CPT 50370: Removal of Failed Transplanted Kidney

    Showing 1–10 of 11

    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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