2023

  1. ICD-10-CM Codes
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  2. C00-D49
    3. ›
  3. C76-C80
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  4. C78-
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  5. 2023 ICD-10-CM Diagnosis Code C78

2023 ICD-10-CM Diagnosis Code C78

Secondary malignant neoplasm of respiratory and digestive organs

    2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
  • C78 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • Short description: Secondary malignant neoplasm of resp and digestive organs
  • The 2023 edition of ICD-10-CM C78 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of C78 - other international versions of ICD-10 C78 may differ.
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as C78. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • secondary carcinoid tumors of liver (
    ICD-10-CM Diagnosis Code C7B.02

    Secondary carcinoid tumors of liver

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    C7B.02
    )
  • secondary carcinoid tumors of peritoneum (
    ICD-10-CM Diagnosis Code C7B.04

    Secondary carcinoid tumors of peritoneum

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    Applicable To
    • Mesentary metastasis of carcinoid tumor
    C7B.04
    )
Type 2 Excludes
Type 2 Excludes Help
A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (C78) and the excluded code together.
  • lymph node metastases (
    ICD-10-CM Diagnosis Code C77.0

    Secondary and unspecified malignant neoplasm of lymph nodes of head, face and neck

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    Applicable To
    • Secondary and unspecified malignant neoplasm of supraclavicular lymph nodes
    C77.0
    )
The following code(s) above C78 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 C78:
  • 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
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
ICD-10-CM Codes Adjacent To C78
C76.8 Malignant neoplasm of other specified ill-defined sites
C77 Secondary and unspecified malignant neoplasm of lymph nodes
C77.0 Secondary and unspecified malignant neoplasm of lymph nodes of head, face and neck
C77.1 Secondary and unspecified malignant neoplasm of intrathoracic lymph nodes
C77.2 Secondary and unspecified malignant neoplasm of intra-abdominal lymph nodes
C77.3 Secondary and unspecified malignant neoplasm of axilla and upper limb lymph nodes
C77.4 Secondary and unspecified malignant neoplasm of inguinal and lower limb lymph nodes
C77.5 Secondary and unspecified malignant neoplasm of intrapelvic lymph nodes
C77.8 Secondary and unspecified malignant neoplasm of lymph nodes of multiple regions
C77.9 Secondary and unspecified malignant neoplasm of lymph node, unspecified
C78 Secondary malignant neoplasm of respiratory and digestive organs
C78.0 Secondary malignant neoplasm of lung
C78.00 Secondary malignant neoplasm of unspecified lung
C78.01 Secondary malignant neoplasm of right lung
C78.02 Secondary malignant neoplasm of left lung
C78.1 Secondary malignant neoplasm of mediastinum
C78.2 Secondary malignant neoplasm of pleura
C78.3 Secondary malignant neoplasm of other and unspecified respiratory organs
C78.30 Secondary malignant neoplasm of unspecified respiratory organ
C78.39 Secondary malignant neoplasm of other respiratory organs
C78.4 Secondary malignant neoplasm of small intestine

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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