Table 1 Breast cancer surgery ICD 9th codes and definitions

Breast cancer

174 Malignant neoplasm of female breast

174.0 Nipple and areola

174.1 Central portion

174.2 Upper-inner quadrant

174.3 Lower-inner quadrant

174.4 Upper-outer quadrant

174.5 Lower-outer quadrant

174.6 Axillary tail

174.8 Other specified sites of female breast

174.9 Breast (female), unspecified

233.0 Carcinoma in situ breast

V10.3 Breast. History of conditions classifiable to 174 and 175

Conservative mastectomy

85.20 Excision or destruction of breast tissue, not otherwise specified

85.21 Local excision of lesion of breast

85.22 Resection of quadrant of breast

85.23 Subtotal mastectomy

Non conservative mastectomy

85.33 Unilateral subcutaneous mammectomy with synchronous implant

85.34 Other unilateral subcutaneous mammectomy

85.35 Bilateral subcutaneous mammectomy with synchronous implant

85.36 Other bilateral subcutaneous mammectomy

85.41 Unilateral simple mastectomy

85.42 Bilateral simple mastectomy

85.43 Unilateral extended simple mastectomy

85.44 Bilateral extended simple mastectomy

85.45 Unilateral radical mastectomy

85.46 Bilateral radical mastectomy

85.47 Unilateral extended radical mastectomy

85.48 Bilateral extended radical mastectomy