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Official Description

Muscle, myocutaneous, or fasciocutaneous flap; upper extremity

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 15736 involves the use of a muscle, myocutaneous, or fasciocutaneous flap specifically for the upper extremity. This surgical technique is employed to repair defects in the upper limb by utilizing a graft that consists of muscle tissue, along with skin or fascia. The process begins with the preparation of the flap from a designated donor site, which is typically located in the upper extremity. Once the flap is adequately prepared, it is rotated and positioned to cover the defect that requires repair. The surgeon then sutures the flap securely into place to ensure proper adherence and functionality. Following the placement of the flap, the donor site, which has been altered during the flap preparation, is closed using sutures or, if necessary, a skin graft. It is important to note that if a skin graft is required to close the donor site, this procedure should be reported separately. This code is specifically designated for procedures involving donor sites located on the upper extremities, distinguishing it from similar codes that pertain to donor sites on other body regions, such as the head, neck, trunk, or lower extremities.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 15736 is indicated for various conditions that necessitate the repair of defects in the upper extremity. These indications may include, but are not limited to, the following:

  • Traumatic Injuries: Significant injuries resulting from accidents or trauma that lead to tissue loss or defects in the upper limb.
  • Oncological Resection: Surgical removal of tumors or cancerous lesions in the upper extremity that result in defects requiring reconstruction.
  • Congenital Defects: Birth defects affecting the structure of the upper limb that may require surgical intervention for correction.
  • Chronic Wounds: Non-healing or chronic wounds in the upper extremity that necessitate surgical repair to promote healing and restore function.

2. Procedure

The procedure for CPT® Code 15736 involves several critical steps to ensure successful flap placement and defect repair. The following outlines the procedural steps:

  • Step 1: Donor Site Selection and Preparation The surgeon begins by selecting an appropriate donor site on the upper extremity, which will provide the necessary muscle, myocutaneous, or fasciocutaneous tissue. The area is then prepared by cleaning and marking the surgical site to ensure precision during the flap harvesting process.
  • Step 2: Flap Harvesting The surgeon carefully dissects the selected flap from the donor site, ensuring that the vascular supply to the flap is preserved. This step is crucial as it maintains the blood flow necessary for the viability of the flap once it is repositioned.
  • Step 3: Flap Rotation and Positioning After harvesting, the flap is rotated and positioned over the defect that requires repair. The surgeon ensures that the flap adequately covers the defect and aligns with the surrounding tissue for optimal integration.
  • Step 4: Suturing the Flap Once the flap is in place, the surgeon sutures it securely to the surrounding tissue. This step is essential for ensuring that the flap remains stable and promotes healing in the area of the defect.
  • Step 5: Donor Site Closure Following the successful placement of the flap, the donor site is closed. This may involve suturing the edges of the incision together or, if necessary, applying a skin graft to cover the area from which the flap was taken. If a skin graft is utilized, it must be reported separately.

3. Post-Procedure

Post-procedure care for patients undergoing the flap procedure coded under CPT® 15736 includes monitoring the flap for viability, which involves checking for adequate blood supply and signs of healing. Patients may be advised to keep the area clean and dry, and to follow specific wound care instructions provided by the healthcare team. Pain management may also be addressed, and patients should be informed about potential signs of complications, such as infection or flap failure. Follow-up appointments are typically scheduled to assess the healing process and to determine if any additional interventions are necessary.

Short Descr MUSCLE-SKIN GRAFT ARM
Medium Descr MUSC MYOCUTANEOUS/FASCIOCUTANEOUS FLAP UXTR
Long Descr Muscle, myocutaneous, or fasciocutaneous flap; upper extremity
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) 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 Procedure or Service, Multiple Reduction Applies
ASC Payment Indicator Surgical procedure on ASC list in CY 2007; payment based on OPPS relative payment weight.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P5A - Ambulatory procedures - skin
MUE 2
CCS Clinical Classification 172 - Skin graft

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

20701 Add-on Code MPFS Status: Active Code APC N Removal of drug-delivery device(s), deep (eg, subfascial) (List separately in addition to code for primary procedure)
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.)
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).
GC This service has been performed in part by a resident under the direction of a teaching physician
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.
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.
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.
76 Repeat procedure or service by same physician or other qualified health care professional: it may be necessary to indicate that a procedure or service was repeated by the same physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 76 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
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
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
F2 Left hand, third digit
F5 Right hand, thumb
SG Ambulatory surgical center (asc) facility service
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
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
Date
Action
Notes
2011-01-01 Changed Short description changed.
1990-01-01 Added First appearance in code book in 1990.
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