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Official Description

External drainage, pseudocyst of pancreas, open

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

External drainage of a pancreatic pseudocyst is a surgical procedure that involves accessing the pancreas through an open approach, typically via a subcostal or midline abdominal incision. This procedure is indicated when a pseudocyst, which is a fluid-filled sac that can develop in the pancreas, requires drainage to alleviate symptoms or prevent complications. During the operation, the surgeon carefully exposes the pancreas and locates the pseudocyst. To confirm the nature of the cyst, it is aspirated to ensure that it contains fluid. Following this, a small incision is made in the cyst wall, and a biopsy may be performed to rule out the presence of malignancy. After confirming the cyst's characteristics, one or more drains are inserted into the cyst cavity to facilitate the continuous drainage of fluid. These drains are secured in place, and the abdominal incision is then closed around the drains, allowing for ongoing monitoring and management of the cyst's contents postoperatively.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

External drainage of a pancreatic pseudocyst is typically indicated in the following situations:

  • Symptomatic Pseudocyst The procedure is performed when the pseudocyst causes symptoms such as abdominal pain, nausea, or vomiting.
  • Infection Risk It is indicated when there is a risk of infection or when the pseudocyst becomes infected, leading to complications.
  • Size of the Pseudocyst Large pseudocysts that are likely to cause complications or discomfort may necessitate drainage.
  • Failure of Conservative Management If conservative management, such as observation or medical therapy, fails to resolve the issue, surgical intervention may be required.

2. Procedure

The procedure for external drainage of a pancreatic pseudocyst involves several critical steps:

  • Step 1: Incision The surgeon begins by making a subcostal or midline abdominal incision to access the abdominal cavity and expose the pancreas. This incision allows for adequate visualization and access to the pseudocyst.
  • Step 2: Locating the Pseudocyst Once the abdomen is opened, the surgeon carefully locates the pancreatic pseudocyst. This step is crucial for ensuring that the correct structure is targeted for drainage.
  • Step 3: Aspiration The pseudocyst is then aspirated to confirm that it is indeed a fluid-filled cyst. This step is important for verifying the nature of the cyst and ensuring that it is suitable for drainage.
  • Step 4: Incision and Biopsy After confirming the fluid-filled nature of the cyst, a small incision is made in the cyst wall. A biopsy of the cyst wall may be performed at this stage to rule out any malignancy, ensuring that the cyst is not cancerous.
  • Step 5: Drain Placement Following the biopsy, one or more drains are placed into the cyst cavity. These drains are essential for allowing the continuous drainage of fluid from the cyst, preventing fluid accumulation and associated complications.
  • Step 6: Securing the Drains The drains are secured in place to ensure they remain effective in draining the cyst fluid. This step is critical for the success of the procedure.
  • Step 7: Closure Finally, the abdominal incision is closed around the drains. This closure allows for ongoing monitoring and management of the cyst while ensuring that the surgical site is protected.

3. Post-Procedure

After the external drainage procedure, patients are typically monitored for any signs of complications, such as infection or bleeding. The drains remain in place for a period to allow for adequate drainage of fluid from the cyst. Patients may require follow-up imaging studies to assess the status of the pseudocyst and the effectiveness of the drainage. Pain management and supportive care are also important aspects of post-procedure care to ensure a smooth recovery.

Short Descr DRAIN PANCREATIC PSEUDOCYST
Medium Descr EXTERNAL DRAINAGE PSEUDOCYST OF PANCREAS OPEN
Long Descr External drainage, pseudocyst of pancreas, open
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 99 - Other OR gastrointestinal therapeutic procedures
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).
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.
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).
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).
GC This service has been performed in part by a resident under the direction of a teaching physician
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2014-01-01 Changed Code description changed.
Pre-1990 Added Code added.
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