2023

  1. ICD-10-CM Codes
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  2. C00-D49
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  3. C15-C26
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  5. 2023 ICD-10-CM Diagnosis Code C17

2023 ICD-10-CM Diagnosis Code C17

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Malignant neoplasm of small intestine

    2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
  • C17 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2023 edition of ICD-10-CM C17 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of C17 - other international versions of ICD-10 C17 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 C17. 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.
  • malignant carcinoid tumors of the small intestine (
    ICD-10-CM Diagnosis Code C7A.01

    Malignant carcinoid tumors of the small intestine

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    C7A.01
    )
The following code(s) above C17 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 C17:
  • 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
  • C15-C26
    2023 ICD-10-CM Range C15-C26

    Malignant neoplasms of digestive organs

    Type 1 Excludes
    • Kaposi's sarcoma of gastrointestinal sites (C46.4)
    Type 2 Excludes
    • gastrointestinal stromal tumors (C49.A-)
    Malignant neoplasms of digestive organs
Clinical Information
  • A primary or metastatic malignant neoplasm involving the small intestine.
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 C17:
  • Applicable To: Z85.068
    ICD-10-CM Diagnosis Code Z85.068

    Personal history of other malignant neoplasm of small intestine

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code POA Exempt
    Applicable To
    • Conditions classifiable to C17
ICD-10-CM Codes Adjacent To C17
C16 Malignant neoplasm of stomach
C16.0 Malignant neoplasm of cardia
C16.1 Malignant neoplasm of fundus of stomach
C16.2 Malignant neoplasm of body of stomach
C16.3 Malignant neoplasm of pyloric antrum
C16.4 Malignant neoplasm of pylorus
C16.5 Malignant neoplasm of lesser curvature of stomach, unspecified
C16.6 Malignant neoplasm of greater curvature of stomach, unspecified
C16.8 Malignant neoplasm of overlapping sites of stomach
C16.9 Malignant neoplasm of stomach, unspecified
C17 Malignant neoplasm of small intestine
C17.0 Malignant neoplasm of duodenum
C17.1 Malignant neoplasm of jejunum
C17.2 Malignant neoplasm of ileum
C17.3 Meckel's diverticulum, malignant
C17.8 Malignant neoplasm of overlapping sites of small intestine
C17.9 Malignant neoplasm of small intestine, unspecified
C18 Malignant neoplasm of colon
C18.0 Malignant neoplasm of cecum
C18.1 Malignant neoplasm of appendix
C18.2 Malignant neoplasm of ascending colon

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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