ICD-10-CM › C00-D49 › C76-C80 › C codes › C79

C79

Secondary malignant neoplasm of other and unspecified sites

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 10 more specific codes instead:

  • C79.0 Secondary malignant neoplasm of kidney and renal pelvis (also a header)
  • C79.1 Secondary malignant neoplasm of bladder and other and unspecified urinary organs (also a header)
  • C79.2 Secondary malignant neoplasm of skin
  • C79.3 Secondary malignant neoplasm of brain and cerebral meninges (also a header)
  • C79.4 Secondary malignant neoplasm of other and unspecified parts of nervous system (also a header)
  • C79.5 Secondary malignant neoplasm of bone and bone marrow (also a header)
  • C79.6 Secondary malignant neoplasm of ovary (also a header)
  • C79.7 Secondary malignant neoplasm of adrenal gland (also a header)
  • C79.8 Secondary malignant neoplasm of other specified sites (also a header)
  • C79.9 Secondary malignant neoplasm of unspecified site

What has happened to this code

Every change the publisher made, from 2012 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.

  1. FY2012 Added to the draft code set draft Secondary malignant neoplasm of other and unspecified sites

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.

This code

Excludes1 - never coded here

  • secondary carcinoid tumors (C7B.-)
  • secondary neuroendocrine tumors (C7B.-)