2023

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  5. 2023 ICD-10-CM Diagnosis Code C7A.091

2023 ICD-10-CM Diagnosis Code C7A.091

Malignant carcinoid tumor of the thymus

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  • C7A.091 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.091 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of C7A.091 - other international versions of ICD-10 C7A.091 may differ.
The following code(s) above C7A.091 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.091:
  • 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 of the thymus, carcinoid tumor
  • Malignant carcinoid tumor of thymus
  • Malignant neuroendocrine tumor of thymus
  • Primary malignant neuroendocrine tumor of thymus
Clinical Information
  • A primary thymic neuroendocrine tumor, often associated with cushing syndrome. Two morphologic subtypes are recognized: typical and atypical carcinoid tumors. Atypical carcinoid tumors have a more aggressive clinical course.
ICD-10-CM C7A.091 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.091 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 C7A.091:
  • Type 1 Excludes: C37
    ICD-10-CM Diagnosis Code C37

    Malignant neoplasm of thymus

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    Type 1 Excludes
    • malignant carcinoid tumor of the thymus (C7A.091)
  • Applicable To: Z85.230
    ICD-10-CM Diagnosis Code Z85.230

    Personal history of malignant carcinoid tumor of thymus

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code POA Exempt
    Applicable To

Diagnosis Index entries containing back-references to C7A.091:
  • Tumor - see also Neoplasm, unspecified behavior, by site
    • carcinoid D3A.00
      ICD-10-CM Diagnosis Code D3A.00

      Benign carcinoid tumor of unspecified site

        2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
      Applicable To
      • Carcinoid tumor NOS
      • malignant C7A.00
        ICD-10-CM Diagnosis Code C7A.00

        Malignant carcinoid tumor of unspecified site

          2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
        • thymus C7A.091

ICD-10-CM Codes Adjacent To C7A.091
C7A.020 Malignant carcinoid tumor of the appendix
C7A.021 Malignant carcinoid tumor of the cecum
C7A.022 Malignant carcinoid tumor of the ascending colon
C7A.023 Malignant carcinoid tumor of the transverse colon
C7A.024 Malignant carcinoid tumor of the descending colon
C7A.025 Malignant carcinoid tumor of the sigmoid colon
C7A.026 Malignant carcinoid tumor of the rectum
C7A.029 Malignant carcinoid tumor of the large intestine, unspecified portion
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

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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