2027 ICD-10-CM Diagnosis Code C75Malignant neoplasm of other endocrine glands and related structures

ICD-10-CM Codes›C00–D49›C73-C75›C75

ICD-10-CM C75
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

C75 is a non-billable ICD-10-CM category code for malignant neoplasm of other endocrine glands and related structures, so it cannot be submitted on claims. Use a more specific code from this category instead, such as C75.0, C75.1, C75.2, and C75.3.

Code Identity

ICD-10-CM Code
C75
Billable Status
No — Non-Billable Category
Code Describes
Malignant neoplasm of other endocrine glands and related structures
Short Description
Malignant neoplasm of endo glands and related structures
Chapter
C73-C75
Malignant neoplasms of thyroid and other endocrine glands

Code Classification

ChapterC00–D49Neoplasms
SectionC73-C75Malignant neoplasms of thyroid and other endocrine glands
CategoryC75Malignant neoplasm of other endocrine glands and related structures
This CodeC75Malignant neoplasm of other endocrine glands and related structures

Specific Coding for Malignant neoplasm of endo glands and related structuresOverview

Non-specific codes like C75 require more characters. Use one of these billable codes instead:

  • Use C75.0 for Malignant neoplasm of parathyroid gland

  • Use C75.1 for Malignant neoplasm of pituitary gland

  • Use C75.2 for Malignant neoplasm of craniopharyngeal duct

  • Use C75.3 for Malignant neoplasm of pineal gland

  • Use C75.4 for Malignant neoplasm of carotid body

  • Use C75.5 for Malignant neoplasm of aortic body and other paraganglia

  • Use C75.8 for Malignant neoplasm with pluriglandular involvement, unspecified

  • Use C75.9 for Malignant neoplasm of endocrine gland, unspecified

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to C75: its own notes plus those printed at Chapter 2. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

  • malignant carcinoid tumors (C7A.0-)
  • malignant neoplasm of adrenal gland (C74.-)
  • malignant neoplasm of endocrine pancreas (C25.4)
  • malignant neoplasm of islets of Langerhans (C25.4)
  • malignant neoplasm of ovary (C56.-)
  • malignant neoplasm of testis (C62.-)
  • malignant neoplasm of thymus (C37)
  • malignant neoplasm of thyroid gland (C73)
  • malignant neuroendocrine tumors (C7A.-)

Notes

General instructions on how these codes are used.

From Chapter 2 (C00-D49) Neoplasms applies to 1,730 codes
  • 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).

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name C75, its category, or a range that includes it.

Applicable To 2

These notes mention C75.

  • Z85.8 Personal history of malignant neoplasms of other organs and systems
    Conditions classifiable to C00-C14, C40-C49, C69-C75, C7A.098, C76-C79 names C69-C75, which includes this code
  • Z85.85 Personal history of malignant neoplasm of endocrine glands
    Conditions classifiable to C73-C75 names C73-C75, which includes this code

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Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About C75Overview

What is the ICD-10 code for malignant neoplasm of other endocrine glands and related structures?

C75 is the ICD-10-CM category for malignant neoplasm of other endocrine glands and related structures, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is C75 a billable code?

No. This is a category header that groups the codes for malignant neoplasm of other endocrine glands and related structures, and headers cannot be submitted on claims. Claims for malignant neoplasm of other endocrine glands and related structures need a more specific code from this category, such as C75.0, C75.1, and C75.2.

Can C75 be reported with a code from C7A.0?

Not as a rule. The Excludes1 note on C75 lists "malignant carcinoid tumors (C7A.0-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).