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Official Description

Transversus abdominis plane (TAP) block (abdominal plane block, rectus sheath block) bilateral; by continuous infusions (includes imaging guidance, when performed)

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The transversus abdominis plane (TAP) block is a regional anesthesia technique that targets the nerves supplying the anterior abdominal wall, specifically at the spinal levels of T6 to L1. This procedure is primarily utilized to manage postoperative pain following abdominal surgeries. By delivering anesthesia to the relevant nerve pathways, the TAP block serves as an adjunct therapy, enhancing pain control and potentially reducing the need for systemic opioids. The TAP block can be performed at various stages of the surgical process: preoperatively, intraoperatively, or postoperatively, depending on the clinical scenario and the surgeon's preference. In cases where the surgical incision is located laterally, a unilateral TAP block is often employed, providing effective pain relief on the side of the incision. Conversely, when the incision is made along the midline of the abdomen, a bilateral TAP block is indicated to ensure comprehensive analgesia. The procedure typically involves the administration of a long-acting local anesthetic, such as bupivacaine, which can offer pain relief for up to 36 hours with a single injection. However, when a continuous infusion technique is utilized, the duration of pain relief can extend from 36 to 72 hours, allowing for more sustained management of postoperative discomfort. Ultrasound guidance is frequently employed during the TAP block procedure, facilitating the visualization of the anatomical structures involved, including the layers of muscle and fascia. This imaging technique enhances the accuracy of needle placement and the distribution of the anesthetic agent. Various approaches, such as subcostal, oblique subcostal, lateral, and posterior, may be utilized to optimize the effectiveness of the block. Overall, the TAP block is a valuable tool in the realm of pain management for patients undergoing abdominal surgery, contributing to improved postoperative outcomes and patient comfort.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The transversus abdominis plane (TAP) block is indicated for various surgical and clinical scenarios, particularly those involving the anterior abdominal wall. The following conditions and situations warrant the use of this procedure:

  • Postoperative Pain Management - The TAP block is primarily performed to provide effective analgesia following abdominal surgeries, thereby enhancing patient comfort and recovery.
  • Abdominal Surgery - It is indicated for patients undergoing procedures such as cesarean sections, hernia repairs, and other abdominal surgeries where pain control is essential.
  • Adjunct to General Anesthesia - The TAP block can be utilized as an adjunct to general anesthesia, helping to reduce the overall opioid requirement during and after surgery.

2. Procedure

The procedure for performing a transversus abdominis plane (TAP) block involves several detailed steps to ensure effective anesthesia delivery. The following outlines the procedural steps:

  • Identification of the Injection Site - For a unilateral TAP block, the triangle of Petit is identified, which is located cephalad to the iliac crest and near the midaxillary line. This anatomical landmark is crucial for accurate needle placement.
  • Needle Insertion - A needle is inserted perpendicular to the skin at the identified site. The needle is advanced through the external and internal abdominal oblique muscles until it reaches the fascia above the transversus abdominis muscle.
  • Injection of Local Anesthetic - Once the needle is in the correct position, local anesthetic is injected at measured intervals. Aspiration is performed to confirm that the needle is not within a blood vessel before administering the anesthetic.
  • Bilateral Injection - For a bilateral TAP block, the procedure is repeated on the opposite side, ensuring that both sides of the abdomen receive adequate anesthesia.
  • Ultrasound Guidance for Continuous Infusion - When performing a TAP block by continuous infusion, ultrasound guidance is typically employed. This allows the physician to visualize the muscle layers and the spread of the anesthetic fluid.
  • Hydrodissection - A Tuohy needle is inserted into the skin and advanced into the fascia above the transversus abdominis muscle. Hydrodissection is performed using 10 ml of isotonic saline to create a space for the catheter.
  • Catheter Placement - An epidural catheter is introduced through the Tuohy needle and advanced 10 to 20 cm into the transversus abdominis plane. After confirming proper placement, the Tuohy needle is removed, and the catheter is secured to the skin.
  • Administration of Anesthetic - A bolus injection of local anesthetic is administered through the catheter, and continuous infusion or intermittent bolus injections are provided as needed for pain management.

3. Post-Procedure

After the transversus abdominis plane (TAP) block procedure, patients are monitored for the effectiveness of pain relief and any potential complications. Expected recovery includes a reduction in postoperative pain, allowing for improved mobility and comfort. Continuous infusion or intermittent bolus injections of anesthetic will be administered as per the established pain management protocol. It is essential to monitor the catheter site for signs of infection or displacement, and to ensure that the patient is adequately informed about the expected duration of pain relief and any follow-up care required. Overall, the TAP block is designed to enhance the postoperative experience by providing targeted analgesia, thereby facilitating a smoother recovery process.

Short Descr TAP BLOCK BI BY INFUSION
Medium Descr TAP BLOCK BILATERAL BY CONTINUOUS INFUSION(S)
Long Descr Transversus abdominis plane (TAP) block (abdominal plane block, rectus sheath block) bilateral; by continuous infusions (includes imaging guidance, when performed)
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) 2 - 150% payment adjustment 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 Items and Services Packaged into APC Rates
ASC Payment Indicator Packaged service/item; no separate payment made.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P6B - Minor procedures - musculoskeletal
MUE 1
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.
GC This service has been performed in part by a resident under the direction of a teaching physician
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
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
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).
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
81 Minimum assistant surgeon: minimum surgical assistant services are identified by adding modifier 81 to the usual procedure number.
AG Primary physician
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
LT Left side (used to identify procedures performed on the left side of the body)
Q3 Live kidney donor surgery and related services
RT Right side (used to identify procedures performed on the right side of the body)
X5 Diagnostic services requested by another clinician: for reporting services by a clinician who furnishes care to the patient only as requested by another clinician or subsequent and related services requested by another clinician; this modifier is reported for patient relationships that may not be adequately captured by the above alternative categories; reporting clinician service examples include but are not limited to, the radiologist's interpretation of an imaging study requested by another clinician
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
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2015-01-01 Added Added
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