Part 5 | CPT Breast Education | Breast Reconstruction Using Autologous Tissue Flaps

This is Part 5 of a 6-part series focusing on CPT coding of breast procedures. There are many different types of breast procedures, each having potential stumbling-blocks for coders. This series will address several of the more confusing topics. Part 5 focuses on the coding of different types of autologous tissue breast reconstruction procedures.


There are two ways reconstruction with a tissue flap may be done: pedicle or free flap.

Pedicled flap – The flap remains attached at one end to its blood vessels and the rest of the flap is tunneled beneath the skin to the chest site.

Examples:  TRAM (Transverse rectus abdominis muscle – abdomen); Latissimus dorsi (back)




Free flap – The flap is completely detached from the body along with its blood vessels and reattached by microsurgery in the position of the reconstructed breast

Examples:  TRAM (Transverse rectus abdominis muscle – abdomen); DIEP (Deep inferior epigastric perforator- abdomen); SIEA (Superficial inferior epigastric artery – abdomen); Gluteal (buttock)




In CPT there are five different codes that may be assigned for a breast reconstruction using an autologous flap.  Free flaps are all grouped under 19364, regardless of the specific type of flap.




Breast reconstruction with free flap



Pedicled autologous flaps are specific for the type of flap – either TRAM or latissimus dorsi.




Breast reconstruction with latissimus dorsi flap, without prosthetic implant


Breast reconstruction with transverse rectus abdominis myocutaneous flap (TRAM), single pedicle, including closure of donor site;


with microvascular anastomosis (supercharging)


Breast reconstruction with transverse rectus abdominis myocutaneous flap (TRAM), double pedicle, including closure of donor site



All the flap reconstruction codes include:

  • Elevation and transfer of the flap
  • Muscle dissection
  • Closure of the donor site
  • Breast contouring


CPT Assistant, August 2005, Volume 15, Issue 8, pages 1-3
CPT Assistant, October 2000, Volume 10, Issue 10, pages 1-3 (DIEP free flap procedure) (Pedicled TRAM flap procedure)

The information contained in this series is valid at the time of posting. Viewers are encouraged to research subsequent official guidance in the areas associated with the topic as they can change rapidly.

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