10=Invasive cancer, NOS
11=Invasive Ductal*
12=Invasive Lobular*
15=Metastatic to breast*
18=other malignant tumors, cancers
19=Cancer, NOS
20=Carcinoma in situ
21=Ductal carcinoma in situ*
22=Lobular carcinoma in sity*
30=atypical hyperplasia, NOS
31=Ductal atypical hyperplasia*
32=Lobular atypical hyperplasia*
40=Ductal hyperplasia
50=Fibroadenoma
51=Cytosarcoma phyllodes
52=Calcifications
53=Microcalcification
60=Benign
62=Other benign
65=Lymph nodes*
67=Sentinal lymph node*
70=Normal
80=Negative FNA
81=Atypia FNA
82=Suspicious for malignancy FNA
83=Positive FNA
85=Insufficient FNA
89=Insufficient FNA
90=Inconclusive (often reexcisional biopsy)
91=Suspicious for malignancy on core needle biopsy
*Codes added in December 2000