ICD-10-CM › C00-D49 › C76-C80 › C79.8 Secondary malignant neoplasm of... › C79.81
Secondary malignant neoplasm of breast
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2007 Added to the draft code set draft Secondary malignant neoplasm of breast
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from C79 Secondary malignant neoplasm of other and unspecified sites
Excludes1 - never coded here
- secondary carcinoid tumors (C7B.-)
- secondary neuroendocrine tumors (C7B.-)
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Melanosarcoma
- Nevocarcinoma
- Melanoblastoma
- Cancer > breast
- Comedocarcinoma
- Melanocarcinoma
- Mole > cancerous
- Melanoepithelioma
- Nevus > malignant
- Sarcoma > melanotic
- Nevus > blue > malignant
- Carcinoma > glycogen-rich
- Carcinoma > juvenile, breast
- Lentigo > maligna > melanoma
- Carcinoma > apocrine > breast
- Carcinoma > secretory, breast
- Tumor > phyllodes > malignant
- Freckle > malignant melanoma in
- Melanosarcoma > epithelioid cell
- Neoplasm, neoplastic > milk duct
- Adenocarcinoma > apocrine > breast
- Cystosarcoma phyllodes > malignant
- Neoplasm, neoplastic > mammary gland
- Mole > malignant > meaning > melanoma
- Carcinoma > duct > with Paget's disease
- Paget's disease > intraductal carcinoma
- Carcinoma > intraductal > with Paget's disease
- Melanosis > precancerous > malignant melanoma in
- Nevus > pigmented > giant > malignant melanoma in
- Paget's disease > with infiltrating duct carcinoma
- Neoplasm, neoplastic > connective tissue NEC > breast
- Carcinoma > infiltrating > duct > with Paget's disease
- Hutchinson's > melanotic freckle > malignant melanoma in
- Adenocarcinoma > infiltrating duct > with Paget's disease
- Adenocarcinoma > duct > infiltrating > with Paget's disease
- Neoplasm, neoplastic > areola
- Neoplasm, neoplastic > breast
- Neoplasm, neoplastic > nipple
- Melanoma > metastatic > breast
- Neoplasm, neoplastic > breast > tail
Showing 40 of 56 index phrases.
Codes in the same group
| Code | Description | Status |
|---|---|---|
| C79.82 | Secondary malignant neoplasm of genital organs | Valid |
| C79.83 | Secondary malignant neoplasm of oral cavity | Valid |
| C79.89 | Secondary malignant neoplasm of other specified sites | Valid |