2023

  1. ICD-10-CM Codes
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  2. C00-D49
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  3. C76-C80
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  4. C79-
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  5. 2023 ICD-10-CM Diagnosis Code C79.89

2023 ICD-10-CM Diagnosis Code C79.89

Secondary malignant neoplasm of other specified sites

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  • C79.89 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 C79.89 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of C79.89 - other international versions of ICD-10 C79.89 may differ.
The following code(s) above C79.89 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to C79.89:
  • C00-D49
    2023 ICD-10-CM Range C00-D49

    Neoplasms

    Note
    • Functional activity
    • All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
    • Morphology [Histology]
    • Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
    • Primary malignant neoplasms overlapping site boundaries
    • A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
    • Malignant neoplasm of ectopic tissue
    • Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).
    Neoplasms
  • C79
    ICD-10-CM Diagnosis Code C79

    Secondary malignant neoplasm of other and unspecified sites

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • secondary carcinoid tumors (C7B.-)
    • secondary neuroendocrine tumors (C7B.-)
    Secondary malignant neoplasm of other and unspecified sites
Approximate Synonyms
  • Cancer metastatic to blood vessel
  • Cancer metastatic to chest wall
  • Cancer metastatic to heart
  • Cancer metastatic to intra abdominal organ
  • Cancer metastatic to lymph node from thyroid
  • Cancer metastatic to mouth
  • Cancer metastatic to muscle
  • Cancer metastatic to parotid gland
  • Cancer metastatic to peripheral nerve
  • Cancer metastatic to soft tissue of axilla
  • Cancer metastatic to soft tissue of back
  • Cancer metastatic to soft tissue of neck
  • Cancer metastatic to soft tissue of pelvis
  • Cancer metastatic to thyroid gland
  • Cancer of the pituitary, metastasis
  • Cancer of the thyroid, metastatic
  • Metastasis to peripheral nerve
  • Secondary malignant neoplasm of blood vessel
  • Secondary malignant neoplasm of chest wall
  • Secondary malignant neoplasm of heart
  • Secondary malignant neoplasm of intra-abdominal organs
  • Secondary malignant neoplasm of lymph nodes from thyroid
  • Secondary malignant neoplasm of mouth
  • Secondary malignant neoplasm of muscle
  • Secondary malignant neoplasm of parotid gland
  • Secondary malignant neoplasm of pituitary gland
  • Secondary malignant neoplasm of soft tissue of back
  • Secondary malignant neoplasm of soft tissues of axilla
  • Secondary malignant neoplasm of soft tissues of neck
  • Secondary malignant neoplasm of soft tissues of pelvis
  • Secondary malignant neoplasm of thyroid gland
ICD-10-CM C79.89 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
  • 826 Myeloproliferative disorders or poorly differentiated neoplasms with major o.r. Procedures with mcc
  • 827 Myeloproliferative disorders or poorly differentiated neoplasms with major o.r. Procedures with cc
  • 828 Myeloproliferative disorders or poorly differentiated neoplasms with major o.r. Procedures without cc/mcc
  • 829 Myeloproliferative disorders or poorly differentiated neoplasms with other procedures with cc/mcc
  • 830 Myeloproliferative disorders or poorly differentiated neoplasms with other procedures without cc/mcc
  • 843 Other myeloproliferative disorders or poorly differentiated neoplastic diagnoses with mcc
  • 844 Other myeloproliferative disorders or poorly differentiated neoplastic diagnoses with cc
  • 845 Other myeloproliferative disorders or poorly differentiated neoplastic diagnoses without cc/mcc

Convert C79.89 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
Code annotations containing back-references to C79.89:
  • Code First: M63
    ICD-10-CM Diagnosis Code M63

    Disorders of muscle in diseases classified elsewhere

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Code First
    Type 1 Excludes
    • myopathy in cysticercosis (B69.81)
    • myopathy in endocrine diseases (G73.7)
    • myopathy in metabolic diseases (G73.7)
    • myopathy in sarcoidosis (D86.87)
    • myopathy in secondary syphilis (A51.49)
    • myopathy in syphilis (late) (A52.78)
    • myopathy in toxoplasmosis (B58.82)
    • myopathy in tuberculosis (A18.09)

Diagnosis Index entries containing back-references to C79.89:
  • Melanoma (malignant) C43.9
    ICD-10-CM Diagnosis Code C43.9

    Malignant melanoma of skin, unspecified

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    Applicable To
    • Malignant melanoma of unspecified site of skin
    • Melanoma (malignant) NOS

ICD-10-CM Codes Adjacent To C79.89
C79.61 Secondary malignant neoplasm of right ovary
C79.62 Secondary malignant neoplasm of left ovary
C79.63 Secondary malignant neoplasm of bilateral ovaries
C79.7 Secondary malignant neoplasm of adrenal gland
C79.70 Secondary malignant neoplasm of unspecified adrenal gland
C79.71 Secondary malignant neoplasm of right adrenal gland
C79.72 Secondary malignant neoplasm of left adrenal gland
C79.8 Secondary malignant neoplasm of other specified sites
C79.81 Secondary malignant neoplasm of breast
C79.82 Secondary malignant neoplasm of genital organs
C79.89 Secondary malignant neoplasm of other specified sites
C79.9 Secondary malignant neoplasm of unspecified site
C80 Malignant neoplasm without specification of site
C80.0 Disseminated malignant neoplasm, unspecified
C80.1 Malignant (primary) neoplasm, unspecified
C80.2 Malignant neoplasm associated with transplanted organ
C81 Hodgkin lymphoma
C81.0 Nodular lymphocyte predominant Hodgkin lymphoma
C81.00 …… unspecified site
C81.01 …… lymph nodes of head, face, and neck
C81.02 …… intrathoracic lymph nodes

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

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