Unspecified benign mammary dysplasia of left breast icd 10 July 8, 2019 16 32 64 128 Icd 10 code for unspecified benign mammary dysplasia of left breast Unspecified lump in the left breast upper outer quadrant icd 10 Malignant neoplasm of breast of unspecified site Benign neoplasm of left breast icd 10