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C79.9 - Secondary malignant neoplasm of unspecified site


The ICD 10 Code for Secondary malignant neoplasm of unspecified site is listed as C79.9.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: C79.9
Description: Secondary malignant neoplasm of unspecified site
  • Metastatic cancer NOS
  • Metastatic disease NOS
  • Excludes1: carcinomatosis NOS (C80.0)
  • generalized cancer NOS (C80.0)
  • malignant (primary) neoplasm of unspecified site (C80.1)
Diagnostic Related Groups
(MS-DRG v30.0)
826 - Myeloprolif Disord Or Poorly Diff Neopl W Maj O.r. Proc W Mcc
827 - Myeloprolif Disord Or Poorly Diff Neopl W Maj O.r. Proc W Cc
828 - Myeloprolif Disord Or Poorly Diff Neopl W Maj O.r. Proc W/o Cc/mcc
829 - Myeloprolif Disord Or Poorly Diff Neopl W Other O.r. Proc W Cc/mcc
830 - Myeloprolif Disord Or Poorly Diff Neopl W Other O.r. Proc W/o Cc/mcc
843 - Other Myeloprolif Dis Or Poorly Diff Neopl Diag W Mcc
844 - Other Myeloprolif Dis Or Poorly Diff Neopl Diag W Cc
845 - Other Myeloprolif Dis Or Poorly Diff Neopl Diag W/o Cc/mcc
Chapter Neoplasms (C00-D49)
Block Malignant neoplasms of ill-defined, other secondary and unspecified sites (C76-C80)
Parent C79 - Secondary malignant neoplasm of other and unspecified sites
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code: 198.89 - Secondary malignant neoplasm of other specified sites (approximate)
ICD-10-CM Siblings (same level / similar specificity) of C79.9:
C79.0 - Secondary malignant neoplasm of kidney and renal pelvis
C79.1 - Secondary malignant neoplasm of bladder and other and unspecified urinary organs
C79.2 - Secondary malignant neoplasm of skin
C79.3 - Secondary malignant neoplasm of brain and cerebral meninges
C79.4 - Secondary malignant neoplasm of other and unspecified parts of nervous system
C79.5 - Secondary malignant neoplasm of bone and bone marrow
C79.6 - Secondary malignant neoplasm of ovary
C79.7 - Secondary malignant neoplasm of adrenal gland
C79.8 - Secondary malignant neoplasm of other specified sites