2023

  1. ICD-10-CM Codes
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  2. C00-D49
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  3. C7A-C7A
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  4. C7A-
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  5. 2023 ICD-10-CM Diagnosis Code C7A.8

2023 ICD-10-CM Diagnosis Code C7A.8

Other malignant neuroendocrine tumors

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  • C7A.8 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 C7A.8 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of C7A.8 - other international versions of ICD-10 C7A.8 may differ.
The following code(s) above C7A.8 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 C7A.8:
  • 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
  • C7A
    ICD-10-CM Diagnosis Code C7A

    Malignant neuroendocrine tumors

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Code Also
    • any associated multiple endocrine neoplasia [MEN] syndromes (E31.2-)
    Type 2 Excludes
    • malignant pancreatic islet cell tumors (C25.4)
    • Merkel cell carcinoma (C4A.-)
    Use Additional
    • code to identify any associated endocrine syndrome, such as:
    • carcinoid syndrome (E34.0)
    Malignant neuroendocrine tumors
Approximate Synonyms
  • Cancer metastatic to abdomen
  • Cancer metastatic to lung
  • Cancer metastatic to mediastinum
  • Cancer neuroendocrine tumor, pancreas
  • Carcinoma neuroendocrine large intestine
  • Carcinoma neuroendocrine small intestine
  • Carcinoma neuroendocrine, appendix
  • Carcinoma neuroendocrine, ascending colon
  • Carcinoma neuroendocrine, cecum
  • Carcinoma neuroendocrine, descending colon
  • Carcinoma neuroendocrine, duodenum
  • Carcinoma neuroendocrine, ileum
  • Carcinoma neuroendocrine, jejunum
  • Carcinoma neuroendocrine, rectum
  • Carcinoma neuroendocrine, sigmoid colon
  • Carcinoma neuroendocrine, transverse colon
  • Malignant neuroendocrine tumor
  • Malignant neuroendocrine tumor of bronchus
  • Malignant neuroendocrine tumor of left kidney
  • Malignant neuroendocrine tumor of lung
  • Malignant neuroendocrine tumor of right kidney
  • Malignant neuroendocrine tumor of stomach
  • Malignant neuroendocrine tumor of thymus
  • Malignant neuroendocrine tumor, bilateral kidneys
  • Neuroendocrine carcinoma metastatic to bilateral lungs
  • Neuroendocrine carcinoma metastatic to left lung
  • Neuroendocrine carcinoma metastatic to right lung
  • Neuroendocrine tumor, unknown primary site
  • Primary malignant neuroendocrine tumor of appendix
  • Primary malignant neuroendocrine tumor of ascending colon
  • Primary malignant neuroendocrine tumor of bilateral kidneys
  • Primary malignant neuroendocrine tumor of bronchus
  • Primary malignant neuroendocrine tumor of cecum
  • Primary malignant neuroendocrine tumor of descending colon
  • Primary malignant neuroendocrine tumor of duodenum
  • Primary malignant neuroendocrine tumor of ileum
  • Primary malignant neuroendocrine tumor of jejunum
  • Primary malignant neuroendocrine tumor of large intestine
  • Primary malignant neuroendocrine tumor of left kidney
  • Primary malignant neuroendocrine tumor of lung
  • Primary malignant neuroendocrine tumor of pancreas
  • Primary malignant neuroendocrine tumor of rectum
  • Primary malignant neuroendocrine tumor of right kidney
  • Primary malignant neuroendocrine tumor of sigmoid colon
  • Primary malignant neuroendocrine tumor of small intestine
  • Primary malignant neuroendocrine tumor of stomach
  • Primary malignant neuroendocrine tumor of thymus
  • Primary malignant neuroendocrine tumor of transverse colon
  • Secondary neuroendocrine carcinoma of abdomen
  • Secondary neuroendocrine carcinoma of bilateral lungs
  • Secondary neuroendocrine carcinoma of left lung
  • Secondary neuroendocrine carcinoma of lung
  • Secondary neuroendocrine carcinoma of mediastinum
  • Secondary neuroendocrine carcinoma of right lung
ICD-10-CM C7A.8 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 C7A.8 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

Diagnosis Index entries containing back-references to C7A.8:

ICD-10-CM Codes Adjacent To C7A.8
C7A.09 Malignant carcinoid tumors of other sites
C7A.090 Malignant carcinoid tumor of the bronchus and lung
C7A.091 Malignant carcinoid tumor of the thymus
C7A.092 Malignant carcinoid tumor of the stomach
C7A.093 Malignant carcinoid tumor of the kidney
C7A.094 Malignant carcinoid tumor of the foregut, unspecified
C7A.095 Malignant carcinoid tumor of the midgut, unspecified
C7A.096 Malignant carcinoid tumor of the hindgut, unspecified
C7A.098 Malignant carcinoid tumors of other sites
C7A.1 Malignant poorly differentiated neuroendocrine tumors
C7A.8 Other malignant neuroendocrine tumors
C7B Secondary neuroendocrine tumors
C7B.0 Secondary carcinoid tumors
C7B.00 …… unspecified site
C7B.01 …… of distant lymph nodes
C7B.02 …… of liver
C7B.03 …… of bone
C7B.04 …… of peritoneum
C7B.09 …… of other sites
C7B.1 Secondary Merkel cell carcinoma
C7B.8 Other secondary neuroendocrine tumors

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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