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Official Description

Incision and drainage of appendiceal abscess; percutaneous

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 44901 refers to the percutaneous incision and drainage of an appendiceal abscess. The appendix is a small, tubular structure that extends from the cecum, and an appendiceal abscess occurs when the appendix becomes inflamed and ruptures, leading to the formation of a pocket of pus. This condition is often a complication of acute appendicitis. In contrast to the open incision and drainage procedure outlined in CPT® Code 44900, which involves a surgical incision in the right lower quadrant of the abdomen, the percutaneous approach utilizes imaging guidance to access the abscess. This minimally invasive technique involves inserting a needle into the abscess pocket to aspirate pus, confirming the presence of infection. Following aspiration, a larger drainage catheter is placed to facilitate the continuous drainage of the abscess, allowing for effective management of the infection while minimizing recovery time and surgical trauma. The catheter may be adjusted within the abscess cavity to ensure thorough drainage, and it is typically left in place for several days to promote healing and collapse of the abscess cavity.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure described by CPT® Code 44901 is indicated for the management of an appendiceal abscess, which typically arises as a complication of acute appendicitis. The following conditions may warrant this procedure:

  • Acute Appendicitis - A condition characterized by inflammation of the appendix, which can lead to rupture and subsequent abscess formation.
  • Appendiceal Abscess - The presence of a localized collection of pus in the vicinity of the appendix, often resulting from a ruptured appendix.
  • Infection Symptoms - Patients presenting with fever, abdominal pain, and signs of infection may require this procedure to alleviate symptoms and prevent further complications.

2. Procedure

The percutaneous incision and drainage of an appendiceal abscess involves several key procedural steps, which are detailed as follows:

  • Step 1: Imaging Guidance - The procedure begins with the use of continuous radiological guidance, which may include ultrasound or fluoroscopy, to accurately locate the appendiceal abscess. This imaging is crucial for ensuring precise needle placement.
  • Step 2: Needle Insertion - A needle is carefully inserted into the abscess pocket under imaging guidance. This step is essential for aspirating the purulent material, confirming the presence of pus within the abscess.
  • Step 3: Aspiration - Once the needle is in place, aspiration is performed to remove the pus from the abscess cavity. This step helps to relieve pressure and reduce the infection load.
  • Step 4: Catheter Placement - Following successful aspiration, a large bore drainage catheter is inserted into the abscess cavity. This catheter allows for continuous drainage of the abscess, facilitating further management of the infection.
  • Step 5: Catheter Manipulation and Irrigation - The catheter may be manipulated to different locations within the abscess cavity to ensure complete drainage. Additionally, catheter irrigation may be performed using saline or an antibiotic solution to enhance the drainage process and promote healing.
  • Step 6: Post-Procedure Care - After the catheter is placed, it is typically left in situ for several days to allow for ongoing drainage of the abscess and to promote the collapse of the abscess cavity.

3. Post-Procedure

Post-procedure care for patients undergoing percutaneous incision and drainage of an appendiceal abscess includes monitoring for signs of infection, ensuring the drainage catheter remains patent, and managing any discomfort. The catheter is usually left in place for several days, during which time the patient may require follow-up imaging to assess the resolution of the abscess. Patients should be advised on signs of complications, such as increased pain, fever, or changes in drainage output, and instructed to follow up with their healthcare provider for further evaluation and management as needed.

Short Descr DRAIN APP ABSCESS PERCUT
Medium Descr I&D APPENDICEAL ABSC PRQ
Long Descr Incision and drainage of appendiceal abscess; percutaneous
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
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) none
MUE Not applicable/unspecified.
CCS Clinical Classification 96 - Other OR lower GI therapeutic procedures
Date
Action
Notes
2014-01-01 Deleted Deleted
2011-01-01 Changed Short description changed.
1998-01-01 Added Code added.
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