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There are multiple SEER Notes in the Breast Surgery Codes of Appendix C instructing us to code tissue expanders as reconstruction but none address the type of reconstruction to be coded.

1. Is a tissue expander always equivalent to Implant reconstruction?

2. Is AlloDerm always equivalent to Tissue reconstruction?

3. Is the combination of AlloDerm and tissue expander always equivalent to Combined (tissue and implant) reconstruction?

Discussion: Example: Shave biopsy with superficial spreading melanoma, Breslow 0.25 mm, Clark level II. Excision with no residual melanoma and gross description of specimen size is 4.0 x 1.6 cm skin ellipse excised to a depth of 1.8 cm.

We have differing opinions in our registry.

Opinion 1: We can assume margins are greater than 1 cm based on the excision specimen size when there is no residual tumor on excision and all dimensions of the excision specimen are more than 1 cm. Surgery would be coded in 40s range.

Opinion 2: We should assume the melanoma defect was in the middle of the excision specimen, so for a skin ellipse that is 4.0 x 1.6 cm, there would be a 2 cm and 0.8 cm margin (respectively) from the middle of the specimen, thus margins are not > 1 cm. Surgery would be coded in 30s range.

Often, pathology for TURBT with non-invasive papillary TCC includes a gross description with a variety of cautery descriptions. For example, "received are three cautery roughened gray-pale pink tissue fragments.” However, the operative report is documented as a "TURBT" with no further description of the procedure.

Operative report indicates a wire localized lumpectomy was performed. The pathology report includes a final diagnosis for two specimens as follows:

A) LEFT BREAST, EXCISION: INFILTRATING DUCTAL CARCINOMA

B) LEFT BREAST, NEW DEEP MARGIN, EXCISION: BENIGN BREAST TISSUES AND BENIGN FIBROFATTY SOFT TISSUES; NO EVIDENCE OF NEOPLASIA.

The definition for Breast surgery code 23 is "Reexcision of the biopsy site for gross or microscopic residual disease". There is no indication whether the re-excision has to be a separate procedure or can be during the same procedure as the excisional biopsy (lumpectomy). Some hospital registrars in our region believe code 22 is more appropriate.

In Appendix C- Breast (SEER Manual 2015) it states under the codes for TOTAL MASTECTOMY (Codes 40-49, 75): For single primaries only, code removal of involved contralateral breast under the data item Surgical Procedure/Other Site (NAACCR Item # 1294). [SEER Note: Example of single primary with removal of involved contralateral breast--Inflammatory carcinoma involving both breasts. Bilateral simple mastectomies. Code Surgery of Primary Site 41 and code Surgical Procedure of Other Site 1.] HOWEVER, underneath that it states code 76 is used for: 76 Bilateral mastectomy for a single tumor involving both breasts, as for bilateral inflammatory carcinoma. So

In the past, the SEER Manual indicated that code 30 [subcutaneous mastectomies], which captured nipple-sparing mastectomies, would rarely be used because it was not typically performed as treatment for a malignancy. This note was removed from the 2010 SEER Manual, Appendix C. Code 30 which now states, "A subcutaneous mastectomy is the removal of breast tissue without the nipple and areolar complex or overlying skin." More "nipple-sparing mastectomies" are now being performed at certain facilities.

Should the Surgery of Primary Site field be coded to 30 when a nipple-sparing mastectomy with reconstruction is performed, even if there is skin removal? Or, does the skin removal indicate that this is not a subcutaneous mastectomy, and therefore code 43 [Total (simple) mastectomy with reconstruction, NOS] applies?

Procedure stated = Bilateral skin-sparing mastectomies, left axillary sentinel lymph node biopsy. On the pathology report it indicates two additional lymph nodes were removed that were not SLN. The axillary aspect measures 2 x 2 x 1 cm. Two lymph nodes are identified ranging from 0.5 up to 1 cm. The lymph nodes are bisected and entirely submitted. Final Diagnosis Left breast, mastectomy including nipple: no residual carcinoma; FINAL DIAGNOSIS for LN = Lymph nodes, left axillary sentinel #1; excision: Two lymph nodes examined - negative for tumor (0/2); Two lymph nodes - negative for tumor (0/2)