ICD-10-PCS Billable Code

0HM2XZZ

Reattachment Skin, Right Ear 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 Part2 Skin, Right Ear
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 Ear

Reattachment of skin on the right ear addresses partial or complete avulsion of the auricle, an injury frequently resulting from bites, blunt trauma, or lacerations given the ear's exposed position and thin covering of skin over cartilage. Because auricular skin is closely adherent to the underlying cartilage with limited surrounding soft tissue, reattachment of an avulsed segment can be technically demanding and may depend on whether the cartilage remained attached or was avulsed along with the skin. When feasible, restoring the segment to its original position preserves both the contour of the ear and its function in sound localization, which is why documentation typically specifies the extent of tissue involved and the vascular status of the reattached piece.

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.