C79.9
BillableSecondary malignant neoplasm of unspecified site
Secondary malignant neoplasm of unspecified site
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Metastatic cancer NOS
- Metastatic disease NOS
Also Known As / Clinical Terms
SNOMED CT
- Pachymeningitis25822001
- Cancer metastatic to thyroid94634005
- Metastasis to thyroid94634005
- Metastatic malignant neoplasm of thyroid gland94634005
- Metastatic malignant neoplasm to thyroid gland94634005
- Secondary malignant neoplasm of thyroid gland94634005
- CA - Secondary cancer128462008
- Metastases128462008
- Metastatic cancer128462008
- Metastatic malignant disease128462008
- Metastatic malignant neoplasm128462008
- Metastatic neoplasm128462008
- Metastatic neoplasm (disease)128462008
- Secondaries128462008
- Secondary cancer128462008
- Secondary malignant deposit128462008
- Secondary malignant neoplastic disease128462008
- Secondary tumor128462008
- Secondary tumour128462008
- Tumor metastasis128462008
- Tumour metastasis128462008
- Metastatic fracture of bone134421000
- Pathologic fracture of bone at site of metastatic neoplasm134421000
- Anaplastic thyroid carcinoma255031003
- Neoplasm of unknown origin255051004
- Tumor of unknown origin255051004
- Tumour of unknown origin255051004
- Cancer - unknown origin255052006
- Malignant neoplasm of unknown origin255052006
- Malignant tumor - unknown primary255052006
- Malignant tumor of unknown origin255052006
- Malignant tumour - unknown primary255052006
- Malignant tumour of unknown origin255052006
- Metastasis - unknown primary255052006
- Metastatic malignant neoplasm of unknown site274088005
- Metastatic malignant neoplasm to unknown site274088005
- Secondary malignant neoplasm of unknown site274088005
- LMM - Lentigo maligna melanoma302837001
- Lentigo maligna melanoma302837001
- Malignant synovioma302851001
- Synovial sarcoma302851001
- Metastatic adenocarcinoma of unknown origin307226002
- Malignant tumor involving an organ by direct extension from bladder369594008
- Malignant tumour involving an organ by direct extension from bladder369594008
- Malignant tumor involving an organ by direct extension from endometrium369595009
- Malignant tumour involving an organ by direct extension from endometrium369595009
- Malignant tumor involving an organ by direct extension from fallopian tube369596005
- Malignant tumour involving an organ by direct extension from fallopian tube369596005
- Malignant tumor involving an organ by direct extension from ovary369597001
- Malignant tumour involving an organ by direct extension from ovary369597001
- Malignant tumor involving an organ by direct extension from prostate369598006
- Malignant tumour involving an organ by direct extension from prostate369598006
- Malignant tumor involving an organ by direct extension from uterine cervix369599003
- Malignant tumour involving an organ by direct extension from uterine cervix369599003
- Malignant tumor involving an organ by direct extension from uterus369600000
- Malignant tumour involving an organ by direct extension from uterus369600000
- Malignant tumor involving an organ by direct extension from vagina369601001
- Malignant tumour involving an organ by direct extension from vagina369601001
- Tumor invasion into adjacent tissues370053002
- Tumour invasion into adjacent tissues370053002
- Tumor invasion by direct extension to other structures370054008
- Tumour invasion by direct extension to other structures370054008
- Stage 3: Extraglandular extension of tumor without other organ involvement (adrenal cortical carcinoma)396534003
- Stage 3: Extraglandular extension of tumour without other organ involvement (adrenal cortical carcinoma)396534003
- Stage III: Extraglandular extension of tumor without other organ involvement (adrenal cortical carcinoma)396534003
- Stage III: Extraglandular extension of tumour without other organ involvement (adrenal cortical carcinoma)396534003
- Stage 4: Distant metastasis or extension into other organs (adrenal cortical carcinoma)396535002
- Stage IV: Distant metastasis or extension into other organs (adrenal cortical carcinoma)396535002
- Tumor invades beyond pancreatic capsule to adjacent structures AND/OR organs (endocrine pancreas)396883006
- Tumor invades beyond pancreatic capsule with direct extension to adjacent structures AND/OR organs (endocrine pancreas)396883006
- Tumour invades beyond pancreatic capsule to adjacent structures AND/OR organs (endocrine pancreas)396883006
- Tumour invades beyond pancreatic capsule with direct extension to adjacent structures AND/OR organs (endocrine pancreas)396883006
- Thymic epithelial neoplasm stage finding396907008
- Stage III: Macroscopic invasion of neighboring organs (thymus gland)396911002
- Stage IVb: Haematogenous or lymphatic dissemination (thymus gland)396913004
- Stage IVb: Hematogenous or lymphatic dissemination (thymus gland)396913004
- Distant metastasis present399409002
- Tumor involvement of noncontiguous structures present399409002
- Tumour involvement of noncontiguous structures present399409002
- Metastatic malignant melanoma with diffuse hypermelanosis402563000
- Metastatic squamous cell carcinoma403906006
- Balloon cell malignant melanoma403922007
- Spindle cell malignant melanoma403923002
- Infantile fibrosarcoma403996004
- Malignant infantile fibrosarcoma403996004
- Embryonal rhabdomyosarcoma404051002
- Pleomorphic rhabdomyosarcoma404054005
- Spindle cell rhabdomyosarcoma404055006
- Intergroup rhabdomyosarcoma study post-surgical clinical group finding405917009
- Intergroup rhabdomyosarcoma study post-surgical clinical group IV: Any size primary tumor, with or without regional lymph node involvement, with distant metastases, without respect to surgical approach to primary tumor405964009
- Intergroup rhabdomyosarcoma study post-surgical clinical group IV: Any size primary tumour, with or without regional lymph node involvement, with distant metastases, without respect to surgical approach to primary tumour405964009
- Tumor invasion by direct extension from organ of origin to adjacent organ409771002
- Tumour invasion by direct extension from organ of origin to adjacent organ409771002
- HER2-positive carcinoma of breast427685000
- Human epidermal growth factor 2 positive carcinoma of breast427685000
- Human epidermal growth factor 2 (HER2) negative carcinoma of breast431396003
- Human epidermal growth factor 2 negative carcinoma of breast431396003
- Oxyphilic adenocarcinoma443261008
- Metastatic malignant melanoma443493003
- Endometrial stromal tumor446887007
- Endometrial stromal tumour446887007
- Metastatic renal cell carcinoma702392008
- Metastatic neuroblastoma704152002
- Lymphedema due to malignant infiltration724447005
- Lymphoedema due to malignant infiltration724447005
- Germline BRCA-mutated human epidermal growth factor receptor 2 negative metastatic carcinoma of breast767444009
- Germline BRCA-mutated, HER2-negative metastatic breast cancer767444009
- gBRCA-mutated, HER2(-) metastatic breast carcinoma767444009
- Complex mixed and stromal malignant neoplasm of endometrium of corpus uteri840516000
- Malignant pachymeningitis870314008
- Pachymeningitis due to secondary malignant neoplastic disease870314008
- Metastatic hepatocellular carcinoma1186612004
- Metastatic liver cell carcinoma1186612004
- Metastatic clear cell renal cell carcinoma1187285005
- Metastatic malignant melanoma of skin1197324006
- Metastatic malignant melanoma to skin1197324006
- Secondary malignant melanoma of skin1197324006
- Metastatic small cell carcinoma1240362006
- Metastatic small cell neuroendocrine carcinoma1240362006
- Secondary small cell carcinoma1240362006
- Metastatic extraskeletal osteosarcoma1251465007
- Metastatic acantholytic squamous cell carcinoma1254749009
- Oligometastatic disease1255358009
- Oligometastatic malignant neoplasm1255358009
- Oligometastatic malignant neoplastic disease1255358009
- Oligometastatic secondary malignant neoplasm1255358009
- Oligometastatic tumor1255358009
- Oligometastatic tumour1255358009
- Metastatic lymphoepithelial carcinoma1264068000
- Metastatic adenosquamous carcinoma1264116009
- Metastatic oxyphilic adenocarcinoma1264118005
- Metastatic papillary squamous cell carcinoma1264258003
- Metastatic sebaceous adenocarcinoma1264367001
- Secondary sebaceous adenocarcinoma1264367001
- Metastatic carcinoma of breast1264495000
- Metastatic carcinoma to breast1264495000
- Secondary carcinoma of breast1264495000
- Metastatic rhabdomyosarcoma1269121005
- Metastatic rhabdosarcoma1269121005
- Metastatic embryonal rhabdomyosarcoma1279882001
- Metastatic neuroendocrine tumor1290060007
- Metastatic neuroendocrine tumour1290060007
- Metastatic well-differentiated neuroendocrine tumor1290060007
- Metastatic well-differentiated neuroendocrine tumour1290060007
- Metastatic cholangiocarcinoma1290690001
- Metastatic apocrine adenocarcinoma1290695006
- Metastatic eccrine porocarcinoma1290697003
- Metastatic pilomatrix carcinoma1290698008
- Metastatic lobular carcinoma1290700004
- Fibrosarcoma1290852005
- Metastatic balloon cell malignant melanoma1332483008
- Metastatic anaplastic thyroid carcinoma1332484002
- Metastatic endometrial stromal sarcoma1332485001
- Metastatic desmoplastic malignant melanoma1335987009
- Metastatic spindle cell rhabdomyosarcoma1336170004
- Metastatic spindle cell rhabdosarcoma1336170004
- Metastatic malignant synovioma1336171000
- Metastatic synovial sarcoma1336171000
- Metastatic ganglioneuroblastoma1336172007
- Metastatic superficial spreading melanoma1336173002
- Metastatic fibrosarcoma1336176005
- Metastatic spindle cell melanoma1336177001
- Metastatic myxofibrosarcoma1336182008
- Metastatic pleomorphic rhabdomyosarcoma1336185005
- Metastatic lentigo maligna melanoma1336186006
- Metastatic glassy cell carcinoma1336188007
- Metastatic inflammatory carcinoma1336190008
- Metastatic infantile fibrosarcoma1339049006
- Metastatic malignant infantile fibrosarcoma1339049006
- Metastatic malignant glioma1339050006
- Metastatic germinoma1339051005
- Ganglioneuroblastoma116381000119105
- HER2 positive metastatic breast cancer459391000124109
- Metastasis from human epidermal growth factor 2 positive carcinoma of breast459391000124109
- Metastatic human epidermal growth factor 2 positive carcinoma of breast459391000124109
- Metastasis from collecting duct carcinoma of nipple459411000124109
- Metastatic collecting duct carcinoma459411000124109
- Metastasis from gastroesophageal adenocarcinoma459371000124108
- Metastatic gastroesophageal adenocarcinoma459371000124108
- Metastasis from hormone-refractory prostate cancer459381000124106
- Metastatic castration-resistant prostate cancer459381000124106
- Metastatic hormone refractory prostate cancer459381000124106
- Metastasis from malignant tumor of penis459421000124101
- Metastatic cancer of penis459421000124101
- Metastatic penile cancer459421000124101
- Metastasis from pancreatic endocrine carcinoma459401000124106
- Metastatic pancreatic endocrine carcinoma459401000124106
- Metastatic adenocarcinoma354081000119101
- Secondary adenocarcinoma354081000119101
- Metastatic transitional cell carcinoma of urinary tract458321000124102
- Metastatic urothelial carcinoma458321000124102
UMLS
- CA - Secondary cancerC2939419
- MetastasesC2939419
- Metastatic CancerC2939419
- Metastatic Malignant NeoplasmC2939419
- Metastatic cancerC2939419
- Metastatic cancer NOSC2939419
- Metastatic diseaseC2939419
- Metastatic disease NOSC2939419
- Metastatic malignant diseaseC2939419
- Metastatic malignant neoplasmC2939419
- Metastatic malignant neoplasm (disorder)C2939419
- Metastatic neoplasmC2939419
- Metastatic neoplasm (disease)C2939419
- Neoplasm, metastaticC2939419
- Neoplasm, metastatic (morphologic abnormality)C2939419
- Neoplasm, secondaryC2939419
- SecondariesC2939419
- Secondary cancerC2939419
- Secondary malignant depositC2939419
- Secondary malignant neoplastic diseaseC2939419
- Secondary tumorC2939419
- Secondary tumourC2939419
- Tumor metastasisC2939419
- Tumor, metastaticC2939419
- Tumor, secondaryC2939419
- Tumour metastasisC2939419
- Tumour, metastaticC2939419
- Tumour, secondaryC2939419
- secondary neoplasmC2939419
- Secondary malignant neoplasm of unspecified siteC2845974
Frequently Asked Questions
What is ICD-10 code C79.9?
ICD-10-CM code C79.9 represents "Secondary malignant neoplasm of unspecified site". It is a billable/specific code that can be used on a claim.
Is C79.9 a billable code?
Yes, C79.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is C79.9 in?
C79.9 is in Chapter 2: Neoplasms (codes C00-D49).
What codes cannot be used with C79.9?
C79.9 has Excludes1 notes indicating codes that cannot be used together with it, including: secondary carcinoid tumors (C7B.-); secondary neuroendocrine tumors (C7B.-); carcinomatosis NOS (C80.0); and 2 more.
What SNOMED CT codes does C79.9 map to?
C79.9 maps to 99 SNOMED CT concepts: 255031003, 403922007, 128462008, 255052006, 94634005, and 94 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for C79.9?
C79.9 is linked to 2 UMLS Concept Unique Identifiers: C2939419, C2845974. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.