Wiki Adjacent Tissue Transfer vs Fasciocutaneous Flap

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Could someone please give me some insight as to how ATT and fasciocutaneous flaps differ? I am struggling with distinguishing the two. Thanks in advance for any advice.
 
Adjacent Tissue Transfer (Rearrangement procedures) involve the transfer or transplantation of healthy, flat sections of skin or other tissue adjacent to a wound, scar or other lesion. The flaps of skin remain connected at one or more of their borders and are moved to an adjacent or nearby defect and attached in their entirety to their new location. These are commonly referred to as "local flaps" since tissue near or local to the defect is moved on to it. These codes 140xx-14xxx do not specify tissue type. No CPT guidance or other direction specifically limits these codes to skin and or subcutaneous tissue. Surgeons often do these procedures in situations involving rearrangement of other tissue, and CPT calls these codes “tissue rearrangement” not “skin rearrangement.

Fasciocutaneous Flaps, on the other hand, describe the type of tissue flaps and do not describe advancement flaps for closure. Obviously it denotes it can be from anywhere of the same tissue type so long as it maintains its vascular supply and tissue type but not from the immediate adjacent tissue- adjacent immediate to the margin of the closure area. If you combine the advancement, then you have to code with the advancement tissue transfer codes from 140xx

Hope this helps
 
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