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Official Description

Hepatectomy, resection of liver; partial lobectomy

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 47120 refers to a hepatectomy, specifically a partial lobectomy of the liver. In this surgical intervention, the physician removes a portion of either the right or left lobe of the liver. The operation begins with an incision typically made in the right subcostal area, which may extend into the left subcostal region or even cranially over the xiphoid process, depending on the specific requirements of the surgery. This approach allows the surgeon to access the liver effectively. During the procedure, the right rectus muscle is transected, and the oblique muscles are split to facilitate access to the liver. Additionally, the medial portion of the left rectus muscle is also transected to ensure adequate exposure. Once the liver is accessible, the ligaments that are attached to the segment of the liver designated for removal are severed, allowing for the mobilization of the liver. The inferior vena cava and the hepatic veins located above the liver are carefully dissected to avoid damage to these critical structures. The arteries supplying the segment of the liver being excised are identified and ligated to prevent excessive bleeding. Similarly, the veins are dissected and divided as part of the resection process. A line of transection is marked on the liver segment using electrocautery, which helps to delineate the area for removal. The liver parenchyma is then divided using surgical scissors and blunt clamp dissection techniques, leading to the removal of the targeted liver segment. After the segment is excised, the vascular and biliary structures are ligated to ensure hemostasis and prevent bile leaks. The surgeon meticulously examines the raw surface of the liver for any signs of bleeding or bile leaks, controlling any bleeding through coagulation methods. If biliary leaks are detected, they are managed through clipping and suture ligation. Finally, the surgical site is irrigated, drains may be placed as necessary, and the incision is closed with sutures to complete the procedure.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure of partial lobectomy of the liver, as described by CPT® Code 47120, is indicated for various conditions affecting the liver. These may include:

  • Malignant Tumors The presence of cancerous lesions within the liver that necessitate the removal of a portion of the liver to achieve clear margins and prevent the spread of cancer.
  • Benign Tumors Non-cancerous growths in the liver that may cause symptoms or complications, warranting surgical intervention for removal.
  • Liver Abscesses The presence of localized infections within the liver that do not respond to medical management and require surgical drainage or resection.
  • Trauma Liver injuries resulting from accidents or other forms of trauma that may require surgical resection to control bleeding or remove damaged tissue.

2. Procedure

The procedure for a partial lobectomy of the liver involves several critical steps, which are outlined as follows:

  • Step 1: Incision The surgeon begins by making an incision in the right subcostal region, which may extend into the left subcostal area or cranially over the xiphoid process to provide adequate access to the liver.
  • Step 2: Muscle Transection The right rectus muscle is transected, and the oblique muscles are split to facilitate exposure of the liver. Additionally, the medial portion of the left rectus muscle is transected to enhance access.
  • Step 3: Liver Mobilization The ligaments attached to the liver segment designated for removal are severed, allowing the liver to be mobilized for the resection.
  • Step 4: Vascular Dissection The inferior vena cava and the hepatic veins above the liver are carefully dissected to avoid injury to these major blood vessels during the procedure.
  • Step 5: Identification and Ligation of Vessels The arteries supplying the liver segment to be removed are identified and ligated to prevent excessive bleeding, while the veins are dissected and divided as necessary.
  • Step 6: Marking the Transection Line A line of transection for the liver segment is marked using electrocautery, which helps to delineate the area for excision.
  • Step 7: Division of Liver Parenchyma The liver parenchyma is divided using surgical scissors and blunt clamp dissection techniques, leading to the removal of the targeted liver segment.
  • Step 8: Management of Vascular and Biliary Structures After the segment is excised, vascular and biliary structures are ligated to ensure hemostasis and prevent bile leaks.
  • Step 9: Examination of the Liver Surface The raw surface of the liver is examined for any signs of bleeding or bile leaks, with bleeding controlled through coagulation methods.
  • Step 10: Closure The surgical site is irrigated, drains may be placed as needed, and the incision is closed with sutures to complete the procedure.

3. Post-Procedure

After the completion of the partial lobectomy, patients typically require monitoring for any complications such as bleeding or infection. The expected recovery period may vary based on the extent of the surgery and the patient's overall health. Post-operative care may include pain management, monitoring of liver function, and assessment for any biliary leaks. Patients may also need to follow specific dietary guidelines and activity restrictions during their recovery phase. Follow-up appointments are essential to evaluate the healing process and to ensure that there are no complications arising from the surgery.

Short Descr PARTIAL REMOVAL OF LIVER
Medium Descr HEPATECTOMY RESCJ PARTIAL LOBECTOMY
Long Descr Hepatectomy, resection of liver; partial lobectomy
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 2
CCS Clinical Classification 99 - Other OR gastrointestinal therapeutic procedures
GC This service has been performed in part by a resident under the direction of a teaching physician
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.
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.
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.
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
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).
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
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).
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).
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.
76 Repeat procedure or service by same physician or other qualified health care professional: it may be necessary to indicate that a procedure or service was repeated by the same physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 76 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
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.)
79 Unrelated procedure or service by the same physician or other qualified health care professional during the postoperative period: the individual may need to indicate that the performance of a procedure or service during the postoperative period was unrelated to the original procedure. this circumstance may be reported by using modifier 79. (for repeat procedures on the same day, see modifier 76.)
CC Procedure code change (use 'cc' when the procedure code submitted was changed either for administrative reasons or because an incorrect code was filed)
CR Catastrophe/disaster related
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
Q6 Service furnished under a fee-for-time compensation arrangement by a substitute physician or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area
RT Right side (used to identify procedures performed on the right side of the body)
X4 Episodic/focused services: for reporting services by clinicians who provide focused care on particular types of treatment limited to a defined period and circumstance; the patient has a problem, acute or chronic, that will be treated with surgery, radiation, or some other type of generally time-limited intervention; reporting clinician service examples include but are not limited to, the orthopedic surgeon performing a knee replacement and seeing the patient through the postoperative period
XP Separate practitioner, a service that is distinct because it was performed by a different practitioner
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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