C79.9

Applicable To

• Metastatic cancer NOS

• Metastatic disease NOS

Approximate Synonyms

• Adenocarcinoma metastatic to unspecified site

• Cancer metastatic to unspecified site

• Cancer of the prostate with metastasis

• Colon cancer metastatic to unspecified site

• Esophageal cancer metastatic to unspecified site

• Female breast cancer metastatic to unspecified site

• Lung cancer metastatic to unspecified site

• Male breast cancer metastatic to unspecified site

• Melanoma, metastatic

• Metastasis from malignant tumor of colon

• Metastasis from malignant tumor of esophagus

• Metastasis from malignant tumor of lung

• Metastasis from malignant tumor of prostate

• Metastatic malignant melanoma

• Metastatic squamous cell carcinoma

• Metastatic undifferentiated large cell carcinoma

• Secondary adenocarcinoma

• Secondary malignant neoplasm of unknown site

• Secondary small cell carcinoma of unspecified site

• Small cell carcinoma metastatic to unspecified site

• Squamous cell carcinoma metastatic to unspecified site

• Squamous cell carcinoma of skin metastatic to unspecif

• Squamous cell carcinoma of skin metastatic to unspecified site

• Thyroid cancer metastatic to unspecified site

• Undifferentiated large cell cancer metastatic to unspe

Clinical Information

• A tumor that has spread from its original primary) site of growth to another site, close to or distant from the primary site. Metastasis is characteristic of advanced malignancies, but in rare instances can be seen in neoplasms lacking malignant morphology.

Details

• C79.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

• The 2023 edition of ICD-10-CM C79.9 became effective on October 1, 2022.

• This is the American ICD-10-CM version of C79.9 – other international versions of ICD-10 C79.9 may differ.