© Copyright 2025 American Medical Association. All rights reserved.
The CPT® Code 19364 refers to a surgical procedure known as breast reconstruction using a free flap technique. This method involves the transfer of a free flap, which is a section of skin, fat, and sometimes muscle, from a donor site on the patient's body to reconstruct the breast after a mastectomy. The donor sites are typically located in the lower abdomen, but can also include the buttocks or thigh, depending on the patient's anatomy and the specific requirements of the reconstruction. The procedure is designed to restore the breast's appearance and shape, providing a more natural look and feel. In this technique, the blood vessels of the harvested flap are meticulously preserved and reattached to the recipient site on the chest wall, ensuring adequate blood supply to the newly formed breast. Various types of free flaps can be utilized in this procedure, including the Deep Inferior Epigastric Perforator (DIEP) flap, which spares the abdominal muscle by using only the skin and fat while maintaining the blood supply through the deep inferior epigastric artery and vein. The free Transverse Rectus Abdominis Muscle (TRAM) flap, on the other hand, involves the removal of a small portion of the rectus muscle along with the skin and fat, utilizing the same blood vessels. Additionally, the Superficial Inferior Epigastric Artery (SIEA) flap is similar to the DIEP flap but does not require any incision in the rectus muscle, as it uses the superficial inferior epigastric artery. For patients who may not have sufficient abdominal tissue for reconstruction, the Gluteal Artery Perforator (GAP) flap offers an alternative, utilizing skin and fat from the buttocks while preserving the underlying muscle. This comprehensive approach to breast reconstruction aims to achieve optimal aesthetic outcomes while considering the patient's individual circumstances and preferences.
© Copyright 2025 Coding Ahead. All rights reserved.
The procedure described by CPT® Code 19364 is indicated for patients who have undergone a mastectomy and are seeking breast reconstruction. The following conditions may warrant the use of this surgical technique:
The procedure for breast reconstruction using a free flap involves several critical steps, each designed to ensure the successful transfer and integration of the flap tissue. The following outlines the procedural steps:
Post-procedure care following breast reconstruction with a free flap is essential for optimal recovery and includes several key considerations. Patients are typically monitored in a recovery area for signs of complications, such as bleeding or infection. Pain management is provided, and patients are advised on how to care for their incisions and any drains that may have been placed. Patients are usually instructed to avoid strenuous activities and heavy lifting for a specified period to allow for proper healing. Follow-up appointments are scheduled to assess the healing process, monitor the viability of the flap, and address any concerns. Physical therapy may be recommended to aid in recovery and restore mobility, particularly if muscle was harvested. Overall, the recovery process can vary based on individual circumstances, but patients can expect gradual improvement in their comfort and the appearance of the reconstructed breast over time.
| Short Descr | BRST RCNSTJ FREE FLAP | Medium Descr | BREAST RECONSTRUCTION W/FREE FLAP | Long Descr | Breast reconstruction; with free flap (eg, fTRAM, DIEP, SIEA, GAP flap) | 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) | 1 - 150% payment adjustment for bilateral procedures applies. | 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) | P1A - Major procedure - breast | MUE | 1 | CCS Clinical Classification | 175 - Other OR therapeutic procedures on skin and breast |
| 50 | Bilateral procedure: unless otherwise identified in the listings, bilateral procedures that are performed at the same session, should be identified by adding modifier 50 to the appropriate 5 digit code. note: this modifier should not be appended to designated "add-on" codes (see appendix d). | 62 | Two surgeons: when 2 surgeons work together as primary surgeons performing distinct part(s) of a procedure, each surgeon should report his/her distinct operative work by adding modifier 62 to the procedure code and any associated add-on code(s) for that procedure as long as both surgeons continue to work together as primary surgeons. each surgeon should report the co-surgery once using the same procedure code. if additional procedure(s) (including add-on procedure(s) are performed during the same surgical session, separate code(s) may also be reported with modifier 62 added. note: if a co-surgeon acts as an assistant in the performance of additional procedure(s), other than those reported with the modifier 62, during the same surgical session, those services may be reported using separate procedure code(s) with modifier 80 or modifier 82 added, as appropriate. | 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) | RT | Right side (used to identify procedures performed on the right side of the body) | 22 | Increased procedural services: when the work required to provide a service is substantially greater than typically required, it may be identified by adding modifier 22 to the usual procedure code. documentation must support the substantial additional work and the reason for the additional work (ie, increased intensity, time, technical difficulty of procedure, severity of patient's condition, physical and mental effort required). note: this modifier should not be appended to an e/m service. | 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. | 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). | 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). | 53 | Discontinued procedure: under certain circumstances, the physician or other qualified health care professional may elect to terminate a surgical or diagnostic procedure. due to extenuating circumstances or those that threaten the well being of the patient, it may be necessary to indicate that a surgical or diagnostic procedure was started but discontinued. this circumstance may be reported by adding modifier 53 to the code reported by the individual for the discontinued procedure. note: this modifier is not used to report the elective cancellation of a procedure prior to the patient's anesthesia induction and/or surgical preparation in the operating suite. for outpatient hospital/ambulatory surgery center (asc) 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. | 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). | AQ | Physician providing a service in an unlisted health professional shortage area (hpsa) | CC | Procedure code change (use 'cc' when the procedure code submitted was changed either for administrative reasons or because an incorrect code was filed) | CR | Catastrophe/disaster related | GA | Waiver of liability statement issued as required by payer policy, individual case | GC | This service has been performed in part by a resident under the direction of a teaching physician | XS | Separate structure, a service that is distinct because it was performed on a separate organ/structure | 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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| 2021-01-01 | Changed | Code changed. |
| Pre-1990 | Added | Code added. |
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