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Official Description

Abdominal paracentesis (diagnostic or therapeutic); without imaging guidance

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

An abdominal paracentesis is a medical procedure that involves the insertion of a needle into the abdominal cavity to either diagnose or treat conditions associated with fluid accumulation. This procedure is particularly useful in identifying the underlying causes of fluid buildup, which may include infections, malignancies, or other pathological conditions. In cases where the fluid accumulation leads to discomfort, pain, or respiratory difficulties, the procedure can also serve a therapeutic purpose by alleviating these symptoms. During the procedure, the skin at the designated puncture site is first cleansed to minimize the risk of infection, followed by the administration of a local anesthetic to ensure patient comfort. A specialized paracentesis needle, which is connected to a syringe, is then carefully inserted into the abdominal cavity. Although imaging guidance can enhance the accuracy of needle placement, this specific CPT® code (49082) is designated for instances where the procedure is performed without such guidance. The aspirated fluid is subsequently examined visually for any signs of bleeding or other abnormalities. If the procedure is conducted for diagnostic reasons, only a small volume of fluid is extracted for laboratory analysis, whereas, for therapeutic purposes, the aspiration continues until the maximum amount of fluid is removed, providing relief to the patient.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The abdominal paracentesis procedure is indicated for various clinical scenarios where fluid accumulation in the abdominal cavity is present. The following conditions may warrant the performance of this procedure:

  • Fluid Accumulation The presence of excess fluid in the abdominal cavity, known as ascites, which may be due to liver disease, heart failure, or malignancies.
  • Diagnostic Evaluation To determine the cause of unexplained abdominal swelling or discomfort, allowing for the analysis of the fluid to identify infections, cancers, or other underlying conditions.
  • Therapeutic Relief When fluid buildup causes significant pain, discomfort, or respiratory distress, necessitating removal of the fluid to alleviate these symptoms.

2. Procedure

The abdominal paracentesis procedure involves several key steps to ensure its effectiveness and safety. The following outlines the procedural steps:

  • Step 1: Preparation The patient is positioned comfortably, typically sitting or lying down, to facilitate access to the abdominal area. The skin over the planned puncture site is thoroughly cleansed with an antiseptic solution to reduce the risk of infection.
  • Step 2: Anesthesia A local anesthetic is injected into the skin and underlying tissues at the puncture site to minimize discomfort during the procedure. This step is crucial for patient comfort and cooperation.
  • Step 3: Needle Insertion A paracentesis needle, which is attached to a syringe, is carefully inserted into the abdominal cavity. The physician may palpate the abdomen to locate the optimal site for needle insertion, ensuring that the needle is directed towards the area of fluid accumulation.
  • Step 4: Fluid Aspiration Once the needle is in place, fluid is aspirated into the syringe. The physician visually examines the aspirated fluid for any signs of bleeding or abnormalities. If the procedure is for diagnostic purposes, only a small volume of fluid is withdrawn for laboratory analysis.
  • Step 5: Therapeutic Aspiration If the procedure is performed for therapeutic reasons, the physician continues to aspirate fluid until the maximum amount has been removed, providing relief from symptoms associated with fluid buildup.
  • Step 6: Post-Procedure Care After the procedure, the needle is removed, and a sterile dressing is applied to the puncture site. The patient is monitored for any immediate complications, and instructions for post-procedure care are provided.

3. Post-Procedure

Following the abdominal paracentesis, patients are typically monitored for any signs of complications, such as bleeding, infection, or injury to surrounding organs. It is important for patients to be aware of potential symptoms that may require immediate medical attention, including increased abdominal pain, fever, or changes in vital signs. Patients may be advised to rest and avoid strenuous activities for a short period following the procedure. If the procedure was performed for diagnostic purposes, the aspirated fluid will be sent to the laboratory for analysis, and results will be communicated to the patient in a timely manner. For therapeutic procedures, patients should experience relief from symptoms, and follow-up appointments may be scheduled to assess the need for further interventions or monitoring of the underlying condition.

Short Descr ABD PARACENTESIS
Medium Descr ABDOM PARACENTESIS DX/THER W/O IMAGING GUIDANCE
Long Descr Abdominal paracentesis (diagnostic or therapeutic); without imaging guidance
Status Code Active Code
Global Days 000 - Endoscopic or 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) 1 - Statutory payment restriction for assistants at surgery applies 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 Procedure or Service, Multiple Reduction Applies
ASC Payment Indicator Non office-based surgical procedure added in CY 2008 or later; payment based on OPPS relative payment weight.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P1G - Major procedure - Other
MUE 1
CCS Clinical Classification 88 - Abdominal paracentesis
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.
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).
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.
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.
73 Discontinued out-patient hospital/ambulatory surgery center (asc) procedure prior to the administration of anesthesia: due to extenuating circumstances or those that threaten the well being of the patient, the physician may cancel a surgical or diagnostic procedure subsequent to the patient's surgical preparation (including sedation when provided, and being taken to the room where the procedure is to be performed), but prior to the administration of anesthesia (local, regional block(s) or general). under these circumstances, the intended service that is prepared for but cancelled can be reported by its usual procedure number and the addition of modifier 73. 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.
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.
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.
77 Repeat procedure by another physician or other qualified health care professional: it may be necessary to indicate that a basic procedure or service was repeated by another physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 77 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.)
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
AG Primary physician
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
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
FS Split (or shared) evaluation and management visit
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
GY Item or service statutorily excluded, does not meet the definition of any medicare benefit or, for non-medicare insurers, is not a contract benefit
LT Left side (used to identify procedures performed on the left side of the body)
Q0 Investigational clinical service provided in a clinical research study that is in an approved clinical research study
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
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
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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2012-01-01 Added Added
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