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Official Description

Laparoscopy, abdomen, peritoneum, and omentum, diagnostic, with or without collection of specimen(s) by brushing or washing (separate procedure)

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 49320 refers to a diagnostic laparoscopy of the abdomen, specifically targeting the peritoneum and omentum. This minimally invasive surgical technique involves the insertion of a laparoscope, which is a thin, lighted tube equipped with a camera, through a small incision near the umbilicus (belly button). The primary goal of this procedure is to visually inspect the abdominal cavity for any signs of malignancy, disease, or injury. During the procedure, a pneumoperitoneum is established, which means that air is insufflated into the abdominal cavity to create a working space for the surgeon to operate. In addition to visual inspection, the procedure allows for the collection of tissue samples, which can be obtained through two methods: brushing or washing. A biopsy brush can be introduced through the laparoscope to collect cell samples directly from the surface of the peritoneum or omentum. Alternatively, a small amount of sterile saline can be instilled into the abdominal cavity, and then aspirated to collect cells, a method known as washing. These collected samples are crucial for further cytological evaluation in a laboratory setting, where they can be analyzed for any pathological conditions. After the inspection and any necessary sample collection, the instruments are carefully withdrawn, and pressure is applied to the abdomen to expel any residual air. Finally, the small incisions made for the procedure are closed, completing the diagnostic laparoscopy.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The diagnostic laparoscopy described by CPT® Code 49320 is indicated for various clinical scenarios where direct visualization of the abdominal cavity is necessary. The following conditions may warrant this procedure:

  • Signs of Malignancy The procedure is often performed when there is a suspicion of cancer within the abdominal cavity, allowing for direct inspection and potential biopsy of suspicious lesions.
  • Abdominal Pain Unexplained abdominal pain that does not respond to conservative treatment may lead to this diagnostic approach to identify underlying causes.
  • Injury Assessment In cases of trauma, laparoscopy can be utilized to assess for internal injuries to the abdominal organs.
  • Chronic Inflammatory Conditions Conditions such as endometriosis or chronic pancreatitis may also be indications for this procedure, as it allows for evaluation and potential treatment.

2. Procedure

The procedure for CPT® Code 49320 involves several key steps that ensure a thorough diagnostic evaluation of the abdominal cavity. The following outlines the procedural steps:

  • Step 1: Establishing Access A periumbilical port is created by making a small incision near the belly button. This access point allows for the insertion of the laparoscope into the abdominal cavity.
  • Step 2: Creating Pneumoperitoneum Once the port is established, pneumoperitoneum is achieved by insufflating air into the abdominal cavity. This inflation creates a working space, allowing the surgeon to visualize the internal structures clearly.
  • Step 3: Inserting the Laparoscope The laparoscope, equipped with a video camera, is then inserted through the port. The surgeon carefully inspects the entire abdominal cavity, including the peritoneum and omentum, for any abnormalities such as tumors, lesions, or signs of disease.
  • Step 4: Collecting Specimens If necessary, the surgeon may collect tissue samples for further analysis. This can be done using a biopsy brush, which is introduced through the laparoscope to obtain cell samples directly from the surface. Alternatively, a small amount of sterile saline may be instilled into the cavity, followed by aspiration to collect cells through the washing method.
  • Step 5: Completing the Procedure After the inspection and any specimen collection, the laparoscope and instruments are withdrawn from the abdominal cavity. The surgeon applies pressure to the abdomen to expel any remaining air from the pneumoperitoneum. Finally, the portal incisions are closed to complete the procedure.

3. Post-Procedure

Following the completion of the diagnostic laparoscopy, patients are typically monitored for any immediate complications. Post-procedure care may include managing any discomfort or pain at the incision site. Patients are often advised to rest and may be given specific instructions regarding activity levels and wound care. The results of any collected specimens will be sent to a laboratory for cytological evaluation, and follow-up appointments may be scheduled to discuss findings and any further treatment options if necessary. Recovery time can vary, but many patients are able to resume normal activities within a few days, depending on their overall health and the extent of the procedure.

Short Descr DIAG LAPARO SEPARATE PROC
Medium Descr LAPS ABD PRTM&OMENTUM DX W/WO SPEC BR/WA SPX
Long Descr Laparoscopy, abdomen, peritoneum, and omentum, diagnostic, with or without collection of specimen(s) by brushing or washing (separate procedure)
Status Code Active Code
Global Days 010 - Minor Procedure
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) 0 - Co-surgeons not permitted for this procedure.
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Hospital Part B services paid through a comprehensive APC
ASC Payment Indicator Surgical procedure on ASC list in CY 2007; payment based on OPPS relative payment weight.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P5E - Ambulatory procedures - other
MUE 1
CCS Clinical Classification 87 - Laparoscopy

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

96547 Add On Code MPFS Status: Active Code APC N Intraoperative hyperthermic intraperitoneal chemotherapy (HIPEC) procedure, including separate incision(s) and closure, when performed; first 60 minutes (List separately in addition to code for primary procedure)
96548 Add On Code MPFS Status: Active Code APC N Intraoperative hyperthermic intraperitoneal chemotherapy (HIPEC) procedure, including separate incision(s) and closure, when performed; each additional 30 minutes (List separately in addition to code for primary procedure)
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.
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
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).
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).
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).
54 Surgical care only: when 1 physician or other qualified health care professional performs a surgical procedure and another provides preoperative and/or postoperative management, surgical services may be identified by adding modifier 54 to the usual procedure number.
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.
74 Discontinued out-patient hospital/ambulatory surgery center (asc) procedure after administration of anesthesia: due to extenuating circumstances or those that threaten the well being of the patient, the physician may terminate a surgical or diagnostic procedure after the administration of anesthesia (local, regional block(s), general) or after the procedure was started (incision made, intubation started, scope inserted, etc). under these circumstances, the procedure started but terminated can be reported by its usual procedure number and the addition of modifier 74. note: the elective cancellation of a service prior to the administration of anesthesia and/or surgical preparation of the patient should not be reported. for physician reporting of a discontinued procedure, see modifier 53.
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.)
81 Minimum assistant surgeon: minimum surgical assistant services are identified by adding modifier 81 to the usual procedure number.
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).
AG Primary physician
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
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
ET Emergency services
GV Attending physician not employed or paid under arrangement by the patient's hospice provider
GW Service not related to the hospice patient's terminal condition
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
Q3 Live kidney donor surgery and related services
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)
SG Ambulatory surgical center (asc) facility service
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
XP Separate practitioner, a service that is distinct because it was performed by a different practitioner
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
Date
Action
Notes
2001-01-01 Changed Code description changed.
2000-01-01 Added First appearance in code book in 2000.
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