ICD-10-PCS Billable Code

0HRWX7Z

Replacement Nipple, Right to No Qualifier with Autologous Tissue Substitute, External Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemH Skin and Breast
OperationR Replacement
Body PartW Nipple, Right
ApproachX External
Device7 Autologous Tissue Substitute
QualifierZ No Qualifier

Operation Definition

Putting in or on biological or synthetic material that physically takes the place and/or function of all or a portion of a body part

Procedure Overview

Replacement procedures in the skin and breast involve putting in material, biological or synthetic, that physically takes over for tissue that has been removed or is absent. The clearest example is breast implant placement following mastectomy, where a saline or silicone implant substitutes for the breast tissue that was removed. Skin grafting for extensive wounds or burns, where donor or synthetic skin substitutes for tissue that cannot heal on its own, also falls into this family.

These procedures are performed when tissue loss is too extensive for simple repair, or when a body part such as the breast has been surgically removed and the patient elects reconstruction. The replacement material can come from the patient's own body, a donor, or be entirely synthetic, and it is meant to remain in place, unlike a temporary dressing or expander used only to stretch skin.

Timing varies considerably: some replacements happen in the same operation as the tissue removal, known as immediate reconstruction, while others are staged over months, especially when tissue expanders are used first to prepare the site before the permanent implant or flap is placed.

Anatomy & Axis Detail

Nipple, Right

Replacement of the right nipple involves putting in a prosthetic or reconstructed substitute for a nipple that has been lost to mastectomy, trauma, or necrosis, distinct from nipple-sparing techniques that preserve the native structure. This may involve a three-dimensional silicone nipple prosthesis adhered to the skin or a similar external device, used when surgical nipple reconstruction using local tissue is not planned or has failed. Because the nipple-areolar complex is a focal point of breast aesthetics and sensation, patients and surgeons weigh the tradeoffs between a nonsurgical prosthetic replacement, which avoids additional surgery but requires ongoing adhesive application, and surgical reconstruction. Documentation should clarify that the procedure substitutes external material for the nipple structure itself rather than describing areolar tattooing or flap-based reconstruction, which are coded differently.

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.

Device: Autologous Tissue Substitute

Autologous Tissue Substitute identifies a device value where material harvested from the patient's own body, such as an autograft, is used to replace or reconstruct a body part. Its defining feature is tissue origin from the patient, setting it apart from Nonautologous Tissue Substitute, sourced from a donor or animal, and Synthetic Substitute, made of manufactured material.

Coding & Documentation

Coders need the operative report to specify the material used, since the qualifier distinguishes autologous tissue from synthetic or nonautologous substitutes, and this materially changes the code selected. Documentation must also make clear that the replaced body part or region is anatomically taking the place of what was removed, not simply reinforcing existing tissue.

A frequent mistake is coding Replacement when a tissue expander, a temporary device meant to be removed later, was placed rather than a permanent implant; expander insertion is typically coded as Insertion, not Replacement. Coders also sometimes miss that a two-stage breast reconstruction requires separate codes at each encounter, one for expander insertion and later for expander removal with implant replacement. Confusion also arises between an implant placed directly after mastectomy versus one placed as a delayed procedure much later, which does not change the root operation but affects timing and history documentation coders should note.

Commonly Confused With

SupplementReplacement is often confused with Supplement, where the surgeon reinforces existing native tissue with mesh or other material rather than substituting for tissue that is gone, such as using mesh to support a breast during reconstruction without replacing removed tissue.
InsertionIt also overlaps with Insertion, which applies to placing a device like a tissue expander that does not itself take over the function of the body part but prepares the site for later replacement.
TransferCoders should distinguish Replacement from Transfer as well, since a pedicled flap that keeps its own blood supply and is moved from elsewhere on the body is coded as Transfer, not Replacement, because it uses the patient's own tissue relocated rather than foreign material substituted in.