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Official Description

Vagotomy when performed with partial distal gastrectomy (List separately in addition to code[s] for primary procedure)

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 43635 involves a surgical intervention known as vagotomy, which is performed in conjunction with a partial distal gastrectomy. The vagus nerve, identified as the tenth cranial nerve, plays a crucial role in the autonomic regulation of the gastrointestinal tract. It originates from the brainstem and extends through the neck, thorax, and abdomen, branching out to innervate various parts of the stomach and upper digestive system. The primary purpose of performing a vagotomy is to reduce the production of gastric acid, which can help in the prevention of peptic ulcers. Historically, vagotomy was a common surgical approach for managing ulcers; however, its frequency has diminished significantly due to the effectiveness of pharmacological treatments available today. During the procedure, the vagus nerve is carefully identified and separated from adjacent structures, followed by the division of the main vagal nerve trunks to achieve the desired therapeutic effect.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The vagotomy procedure, as described by CPT® Code 43635, is indicated for specific conditions related to excessive gastric acid production. The following are the primary indications for performing this procedure:

  • Peptic Ulcers - Vagotomy is indicated in patients with peptic ulcers that are resistant to medical management or recurrent despite appropriate pharmacological treatment.
  • Gastric Hypersecretion - The procedure may be performed in cases where there is excessive gastric acid secretion contributing to ulcer formation.
  • Gastric Outlet Obstruction - Vagotomy may be indicated in patients experiencing obstruction due to scarring or other complications from ulcers.

2. Procedure

The surgical procedure for vagotomy when performed with a partial distal gastrectomy involves several critical steps, which are outlined as follows:

  • Step 1: Anesthesia and Preparation - The patient is placed under general anesthesia, and the surgical area is prepared and draped in a sterile manner to minimize the risk of infection during the procedure.
  • Step 2: Accessing the Abdomen - A surgical incision is made in the abdomen to gain access to the stomach and surrounding structures. This may involve either an open approach or a laparoscopic technique, depending on the surgeon's preference and the patient's condition.
  • Step 3: Identification of the Vagus Nerve - The surgeon carefully identifies the vagus nerve, which is located along the esophagus and stomach. The nerve is meticulously freed from surrounding tissues to avoid damage to adjacent structures.
  • Step 4: Division of the Vagus Nerve - Once the vagus nerve is adequately exposed, the main vagal trunks are divided. This step is crucial for reducing gastric acid secretion, as it interrupts the nerve signals that stimulate acid production.
  • Step 5: Partial Distal Gastrectomy - Following the vagotomy, a partial distal gastrectomy is performed, which involves the surgical removal of a portion of the stomach. This step is often necessary to address the underlying issues related to peptic ulcers.
  • Step 6: Closure - After completing the necessary surgical interventions, the abdominal cavity is closed in layers, and the incision is sutured or stapled to promote healing.

3. Post-Procedure

Post-procedure care following vagotomy with partial distal gastrectomy includes monitoring the patient for any complications such as infection, bleeding, or issues related to gastric emptying. Patients may require a modified diet initially, transitioning from liquids to soft foods as tolerated. It is essential to provide education on potential changes in digestion and the importance of follow-up appointments to assess recovery and manage any long-term effects of the surgery.

Short Descr REMOVAL OF STOMACH PARTIAL
Medium Descr VAGOTOMY PFRMD W/PRTL DSTL GSTRCT
Long Descr Vagotomy when performed with partial distal gastrectomy (List separately in addition to code[s] for primary procedure)
Status Code Active Code
Global Days ZZZ - Code Related to Another Service
PC/TC Indicator (26, TC) 0 - Physician Service Code
Multiple Procedures (51) 0 - No 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 94 - Other OR upper GI therapeutic procedures

This is an add-on code that must be used in conjunction with one of these primary codes.

43631 MPFS Status: Active Code APC C Physician Quality Reporting CPT Assistant Article Illustration for Code Gastrectomy, partial, distal; with gastroduodenostomy
43632 MPFS Status: Active Code APC C Physician Quality Reporting CPT Assistant Article Illustration for Code Gastrectomy, partial, distal; with gastrojejunostomy
43633 MPFS Status: Active Code APC C Physician Quality Reporting CPT Assistant Article Illustration for Code Gastrectomy, partial, distal; with Roux-en-Y reconstruction
43634 MPFS Status: Active Code APC C Physician Quality Reporting CPT Assistant Article Illustration for Code Gastrectomy, partial, distal; with formation of intestinal pouch
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.
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.
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).
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).
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
GC This service has been performed in part by a resident under the direction of a teaching physician
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
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Action
Notes
2011-01-01 Changed Short description changed.
2009-01-01 Changed Code description changed.
Pre-1990 Added Code added.
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