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Official Description

Insertion of pacemaker pulse generator only; with existing single lead

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 33212 involves the insertion of a permanent cardiac pacemaker pulse generator that is connected to an existing single lead. A cardiac pacemaker is a medical device designed to deliver electrical impulses to the heart, ensuring it maintains a regular rhythm. This is particularly important for patients whose hearts may not beat adequately on their own due to various cardiac conditions. The pacemaker system can consist of a single lead, dual leads, or multiple leads, which can be positioned either on the surface of the heart (epicardial) or within the heart chambers (endocardial). During the procedure, a surgical incision is typically made in the left pectoral region, where a subcutaneous pocket is created to house the pulse generator. The existing lead is then connected to the pulse generator, which is subsequently tested to confirm proper functionality. Once confirmed, the pulse generator is securely placed in the pocket, sutured to the underlying tissue, and the incision is closed. This code specifically applies to cases where the pulse generator is inserted with an existing single lead, distinguishing it from CPT® Code 33213, which pertains to the insertion of a pulse generator with existing dual leads.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The insertion of a pacemaker pulse generator using CPT® Code 33212 is indicated for patients who require cardiac pacing due to various heart rhythm disorders. These may include conditions such as:

  • Bradycardia: A condition characterized by an abnormally slow heart rate, which can lead to insufficient blood flow to the body.
  • Heart Block: A condition where the electrical signals in the heart are delayed or blocked, preventing the heart from beating effectively.
  • Post-Myocardial Infarction: Patients who have experienced a heart attack may develop arrhythmias that necessitate pacing.
  • Congenital Heart Defects: Some patients with congenital heart conditions may require pacing to maintain a normal heart rhythm.

2. Procedure

The procedure for the insertion of a pacemaker pulse generator with an existing single lead involves several critical steps:

  • Step 1: The patient is positioned appropriately, and the surgical site is prepared and sterilized to minimize the risk of infection.
  • Step 2: An incision is made in the skin, typically located in the left pectoral region, to access the area where the pulse generator will be placed.
  • Step 3: A subcutaneous pocket is created in the tissue beneath the skin to accommodate the pacemaker pulse generator securely.
  • Step 4: The existing lead is connected to the pulse generator, ensuring that the electrical connections are secure and functional.
  • Step 5: The pulse generator is tested to confirm that it is functioning correctly and that the lead is properly delivering impulses to the heart.
  • Step 6: Once the functionality is verified, the pulse generator is placed into the subcutaneous pocket, and it is sutured to the underlying tissue to prevent movement.
  • Step 7: The incision is then closed using sutures, and the surgical site is dressed appropriately.

3. Post-Procedure

After the procedure, patients are typically monitored for any immediate complications, such as infection or lead displacement. They may be advised to limit physical activity for a certain period to allow for proper healing. Follow-up appointments are essential to assess the pacemaker's function and to make any necessary adjustments. Patients will also receive instructions on how to care for the incision site and recognize signs of potential complications, such as increased swelling, redness, or unusual pain at the site.

Short Descr INSERT PULSE GEN SNGL LEAD
Medium Descr INS PM PLS GEN W/EXIST SINGLE LEAD
Long Descr Insertion of pacemaker pulse generator only; with existing single lead
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) 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 Hospital Part B services paid through a comprehensive APC
ASC Payment Indicator Device-intensive procedure added to ASC list in CY 2008 or later; paid at adjusted rate.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P2E - Major procedure, cardiovascular-Pacemaker insertion
MUE 1
CCS Clinical Classification 48 - Insertion, revision, replacement, removal of cardiac pacemaker or cardioverter/defibrillator

This is a primary code that can be used with these additional add-on codes.

33225 Addon Code MPFS Status: Active Code APC N ASC N1 Physician Quality Reporting PUB 100 CPT Assistant Article Insertion of pacing electrode, cardiac venous system, for left ventricular pacing, at time of insertion of implantable defibrillator or pacemaker pulse generator (eg, for upgrade to dual chamber system) (List separately in addition to code for primary procedure)
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).
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.)
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
GC This service has been performed in part by a resident under the direction of a teaching physician
KX Requirements specified in the medical policy have been met
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
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2017-01-01 Changed Moderate (Conscious) Sedation flag removed. See new Moderate Sedation category.
2012-01-01 Changed Description Changed
Pre-1990 Added Code added.
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