ICD-10-PCS Billable Code

0HMHXZZ

Reattachment Skin, Right Upper Leg to No Qualifier with No Device, External Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemH Skin and Breast
OperationM Reattachment
Body PartH Skin, Right Upper Leg
ApproachX External
DeviceZ No Device
QualifierZ No Qualifier

Operation Definition

Putting back in or on all or a portion of a separated body part to its normal location or other suitable location

Procedure Overview

Reattachment procedures restore a separated portion of skin or breast tissue to its original location, most often following traumatic avulsion or amputation. A classic example is reattaching a traumatically avulsed scalp or a section of skin torn away in an industrial or vehicular injury. In breast surgery, reattachment applies when the nipple-areolar complex has been separated, whether from trauma or as part of a staged surgical technique, and is surgically repositioned and secured.

This procedure requires that the original tissue itself, not a graft or prosthetic substitute, is put back in place, typically with microvascular or direct suture technique to restore blood flow and structural continuity.

The goal is to preserve native tissue and function or appearance that would otherwise be lost, and it is generally performed as an urgent or semi-urgent repair following injury.

Anatomy & Axis Detail

Skin, Right Upper Leg

Skin of the right upper leg covers the quadriceps, hamstrings, and adductor musculature over a large surface area, making it a site of substantial avulsion injuries from motor vehicle trauma, machinery entrapment, or motorcycle accidents where degloving of the thigh strips a wide sheet of tissue. Reattachment restores that segment to the thigh and reestablishes its blood supply, often via microsurgical repair of perforators from the femoral or profunda femoris vascular system given the size of flaps typically involved. Because the thigh bears significant weight and undergoes large-range hip and knee motion, tension across the reattached area during ambulation and rehabilitation is a key concern, and activity restriction is common during early healing. Given the size of thigh flaps, documentation should note the approximate extent of the reattached segment along with laterality.

Approach: External

External approach applies to procedures performed directly on the skin or mucous membrane, or on an accessible body surface, without any instrumentation passing through a puncture or orifice. It covers things like manual reduction of a fracture or excision of a skin lesion. It differs from Via Natural or Artificial Opening in that no internal passage is entered at all, only the exposed surface.

Coding & Documentation

Coding requires documentation confirming that the reattached tissue is the patient's own previously separated structure being restored to its original or a suitable nearby site, rather than a free flap or graft harvested from elsewhere. Operative notes should specify the mechanism of separation and the technique used to reconnect it, including whether microvascular anastomosis was performed. A common error is coding a free flap transfer as Reattachment when it is actually Transfer or Replacement, since a flap is repositioned tissue with its own vascular pedicle rather than a fully severed part being rejoined.

Commonly Confused With

TransferReattachment is often confused with Transfer, which moves a still-attached or vascularized flap to a new site rather than rejoining a completely separated part.
RepairIt is also distinguished from Repair, which is used for simple suturing of a laceration that never fully separated from the body.