N63.2 Unspecified lump in the left breastNon-billable header with 6 child codes.
N63.20 Unspecified lump in the left breast, unspecified quadrantN63.21 Unspecified lump in the left breast, upper outer quadrantN63.22 Unspecified lump in the left breast, upper inner quadrantN63.23 Unspecified lump in the left breast, lower outer quadrantN63.24 Unspecified lump in the left breast, lower inner quadrantN63.25 Unspecified lump in the left breast, overlapping quadrantsR22.2 Localized swelling, mass and lump, trunk ("breast mass and lump (N63)")N63.11 Unspecified lump in the right breast, upper outer quadrantN63.12 Unspecified lump in the right breast, upper inner quadrantN63.13 Unspecified lump in the right breast, lower outer quadrantN63.14 Unspecified lump in the right breast, lower inner quadrantN63.15 Unspecified lump in the right breast, overlapping quadrantsN63.2 Unspecified lump in the left breast (this code)N63.20 Unspecified lump in the left breast, unspecified quadrantN63.21 Unspecified lump in the left breast, upper outer quadrantN63.22 Unspecified lump in the left breast, upper inner quadrantN63.23 Unspecified lump in the left breast, lower outer quadrantN63.24 Unspecified lump in the left breast, lower inner quadrant