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Transfer Subcutaneous Tissue and Fascia, Left Upper Leg to Skin, Subcutaneous Tissue and Fascia with No Device, Percutaneous Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | J Subcutaneous Tissue and Fascia |
| Operation | X Transfer |
| Body Part | M Subcutaneous Tissue and Fascia, Left Upper Leg |
| Approach | 3 Percutaneous |
| Device | Z No Device |
| Qualifier | C Skin, Subcutaneous Tissue and Fascia |
Operation Definition
Moving, without taking out, all or a portion of a body part to another location to take over the function of all or a portion of a body part
Procedure Overview
This family covers moving a section of subcutaneous tissue or fascia, without detaching its blood supply, to a nearby location where it takes over the function of tissue that is missing or damaged. This is the coding category for local flap procedures, where a surgeon lifts a segment of tissue still connected to its native blood vessels and rotates or advances it to cover a defect elsewhere on the body.
These procedures are performed to reconstruct areas where skin or underlying tissue has been lost to trauma, tumor removal, or chronic wounds, and where using nearby tissue with an intact blood supply offers better healing than a graft that must establish a completely new blood supply after being fully detached.
Because the tissue remains attached at its base throughout the transfer, this approach relies on the flap's own vascular pedicle to keep it viable while it takes on its new function at the recipient site.
Anatomy & Axis Detail
Subcutaneous Tissue and Fascia, Left Upper Leg
On the left upper leg, the fascia overlying the thigh musculature and the subcutaneous fat between skin and muscle form a pedicled flap option for reconstructing nearby defects, most often around the groin, perineum, or hip region after resection or injury. The surgeon elevates the tissue with its blood supply preserved, rotates or advances it into the recipient site, and leaves the origin still connected rather than fully detaching it. Documentation distinguishes this laterality-specific procedure from a free graft, since the vascular continuity is what defines a transfer rather than a replacement. The relatively generous fat layer of the anteromedial thigh makes this a workhorse donor site when bulk and reach are both needed to cover a defect that skin alone cannot close.
Approach: Percutaneous
Percutaneous describes entry by needle or instrument puncture through the skin or mucous membrane to reach the site of the procedure, without cutting the tissue open or using a visualizing scope. It differs from Open in that the site itself is never exposed, and from Percutaneous Endoscopic in that no endoscope is used to see internal structures. Common examples include needle biopsies and injections.
Qualifier: Skin, Subcutaneous Tissue and Fascia
Skin, Subcutaneous Tissue and Fascia qualifies a procedure as extending through the skin and fat down to and including the fibrous fascial layer. It represents the deepest of this qualifier group, distinguished from Skin and Subcutaneous Tissue by additionally involving fascia, which is clinically relevant for larger excisions or flap harvests.
Coding & Documentation
Coders should verify that the operative note describes a flap that remained vascularly connected to its origin while being moved to a new location, distinguishing it from tissue that was completely detached. The note should identify both the donor site and the recipient site.
A common error is coding a pedicled flap transfer the same way as a free flap, when a free flap that is fully detached and reattached with microvascular anastomosis is coded differently since it does not retain its original blood supply during the move. Coders should also confirm the body part value reflects the transferred tissue's new location rather than its site of origin.
Commonly Confused With
Free flap procedures are the closest source of confusion, and the distinguishing factor is whether the tissue's original blood supply stayed connected throughout the move, which applies only to Transfer. Replacement differs because it involves putting in material to take the place of tissue rather than relocating the patient's own living tissue to a new site.