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Official Description

Limited lymphadenectomy for staging (separate procedure); retroperitoneal (aortic and/or splenic)

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 38564 refers to a limited lymphadenectomy performed for staging purposes, specifically targeting the retroperitoneal lymph nodes, which include the aortic and/or splenic nodes. This surgical intervention involves making an incision in the abdomen to access the pelvic and para-aortic lymph nodes. The primary goal of this procedure is to evaluate the presence of metastatic disease by removing and examining lymph nodes that may harbor cancerous cells. During the operation, careful attention is given to preserve critical anatomical structures, such as the genitofemoral nerve and the psoas muscle, while stripping fatty tissue from the common iliac vessels and along the internal and external iliac vessels. The procedure is methodically executed, beginning with the exploration and removal of pelvic lymph nodes, followed by the opening of the peritoneal cavity to assess the abdomen and pelvis for any signs of metastasis. The para-aortic lymph nodes are then exposed, and biopsies are taken for immediate analysis through frozen section pathology. This allows for real-time assessment of lymph node involvement, guiding the surgeon in determining the extent of the dissection required. The procedure can be approached either transabdominally or thoracoabdominally, typically starting on the side of the malignancy, and may involve sampling lymph nodes along the splenic artery if necessary. The careful dissection and sampling of lymph nodes are crucial for accurate staging and subsequent treatment planning.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The limited lymphadenectomy for staging, as described by CPT® Code 38564, is indicated for the evaluation of potential metastatic disease in patients with known malignancies. The specific indications for this procedure include:

  • Staging of Cancer: This procedure is performed to assess the extent of cancer spread, particularly in cases where retroperitoneal lymph nodes may be involved.
  • Presence of Malignancy: It is indicated when there is a known malignancy that necessitates evaluation of the pelvic and para-aortic lymph nodes for staging purposes.
  • Suspicion of Metastatic Disease: The procedure is warranted when there is a clinical suspicion of metastatic involvement of the lymph nodes based on imaging studies or other diagnostic evaluations.

2. Procedure

The procedure for a limited lymphadenectomy for staging involves several critical steps, which are detailed as follows:

  • Step 1: Incision and Exploration The surgical procedure begins with an incision in the abdomen to access the pelvic and para-aortic lymph nodes. Prior to opening the peritoneum, the surgeon carefully explores the pelvic lymph nodes to assess their condition and remove any that are suspicious for malignancy.
  • Step 2: Preservation of Anatomical Structures During the dissection, the surgeon takes special care to preserve vital structures, including the genitofemoral nerve and the psoas muscle. Fatty tissue is meticulously stripped from the mid-portion of both common iliac vessels and along the internal and external iliac vessels, extending to the level of the circumflex iliac vein.
  • Step 3: Bilateral Node Excision The procedure continues with the excision of iliac, hypogastric, and obturator nodes bilaterally, ensuring comprehensive sampling of the lymphatic tissue in the region.
  • Step 4: Opening the Peritoneal Cavity Once the pelvic lymph nodes are addressed, the peritoneal cavity is opened, allowing for exploration of the abdomen and pelvis to check for any evidence of metastatic disease.
  • Step 5: Exposure of Para-Aortic Lymph Nodes The para-aortic lymph nodes are then exposed, and biopsies are taken for frozen section analysis. This step is crucial for determining the presence of cancerous involvement in these nodes.
  • Step 6: Aortic Lymph Node Dissection The dissection of the aortic lymph nodes begins at the take-off of the renal vessels, extending laterally to the ureters and inferiorly to the bifurcation of the inferior mesenteric artery. This includes lymph nodes located between the aorta and inferior vena cava.
  • Step 7: Sampling of Splenic Artery Nodes If indicated, lymph nodes along the splenic artery may also be sampled, and any positive nodes are excised based on the findings from the frozen section analysis.
  • Step 8: Tailoring the Procedure The procedure is tailored based on the frozen section findings, which may lead to additional sampling or excision of lymph nodes on the contralateral side, depending on the extent of involvement observed.

3. Post-Procedure

After the completion of the limited lymphadenectomy for staging, patients typically require monitoring for any immediate postoperative complications. Expected recovery may involve managing pain at the incision site and monitoring for signs of infection. Patients may also need follow-up imaging or additional procedures based on the results of the lymph node biopsies. The findings from the frozen section analysis will guide further treatment decisions, which may include additional surgical interventions, chemotherapy, or radiation therapy, depending on the extent of lymph node involvement and the overall staging of the malignancy.

Short Descr REMOVAL ABDOMEN LYMPH NODES
Medium Descr LMTD LMPHADEC STAGING SPX RPR AORTIC&/SPLENIC
Long Descr Limited lymphadenectomy for staging (separate procedure); retroperitoneal (aortic and/or splenic)
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 67 - Other therapeutic procedures, hemic and lymphatic system

This is a primary code that can be used with these additional add-on codes.

38900 Addon Code MPFS Status: Active Code APC N ASC N1 Intraoperative identification (eg, mapping) of sentinel lymph node(s) includes injection of non-radioactive dye, when performed (List separately in addition to code for primary procedure)
51 Multiple procedures: when multiple procedures, other than e/m services, physical medicine and rehabilitation services or provision of supplies (eg, vaccines), are performed at the same session by the same individual, the primary procedure or service may be reported as listed. the additional procedure(s) or service(s) may be identified by appending modifier 51 to the additional procedure or service code(s). note: this modifier should not be appended to designated "add-on" codes (see appendix d).
59 Distinct procedural service: under certain circumstances, it may be necessary to indicate that a procedure or service was distinct or independent from other non-e/m services performed on the same day. modifier 59 is used to identify procedures/services, other than e/m services, that are not normally reported together, but are appropriate under the circumstances. documentation must support a different session, different procedure or surgery, different site or organ system, separate incision/excision, separate lesion, or separate injury (or area of injury in extensive injuries) not ordinarily encountered or performed on the same day by the same individual. however, when another already established modifier is appropriate it should be used rather than modifier 59. only if no more descriptive modifier is available, and the use of modifier 59 best explains the circumstances, should modifier 59 be used. note: modifier 59 should not be appended to an e/m service. to report a separate and distinct e/m service with a non-e/m service performed on the same date, see modifier 25.
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
GC This service has been performed in part by a resident under the direction of a teaching physician
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.
52 Reduced services: under certain circumstances a service or procedure is partially reduced or eliminated at the discretion of the physician or other qualified health care professional. under these circumstances the service provided can be identified by its usual procedure number and the addition of modifier 52, signifying that the service is reduced. this provides a means of reporting reduced services without disturbing the identification of the basic service. note: for hospital outpatient 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).
58 Staged or related procedure or service by the same physician or other qualified health care professional during the postoperative period: it may be necessary to indicate that the performance of a procedure or service during the postoperative period was: (a) planned or anticipated (staged); (b) more extensive than the original procedure; or (c) for therapy following a surgical procedure. this circumstance may be reported by adding modifier 58 to the staged or related procedure. note: for treatment of a problem that requires a return to the operating/procedure room (eg, unanticipated clinical condition), see modifier 78.
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.)
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).
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
LT Left side (used to identify procedures performed on the left side of the body)
Q1 Routine clinical service provided in a clinical research study that is in an approved clinical research study
RT Right side (used to identify procedures performed on the right side of the body)
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
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2011-01-01 Changed Short description changed.
Pre-1990 Added Code added.
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