Malignant neoplasm of other endocrine glands and related structures (C75) ICD-10-CM
The C75 code range covers malignant neoplasm of other endocrine glands and related structures with 9 ICD-10-CM diagnosis codes. 8 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- 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
Codes in the C75 Range 9 codes · 8 billable
- C75 Malignant neoplasm of other endocrine glands and related structuresNon-billable
- C75.0 Malignant neoplasm of parathyroid gland
- C75.1 Malignant neoplasm of pituitary gland
- C75.2 Malignant neoplasm of craniopharyngeal duct
- C75.3 Malignant neoplasm of pineal gland
- C75.4 Malignant neoplasm of carotid body
- C75.5 Malignant neoplasm of aortic body and other paraganglia
- C75.8 Malignant neoplasm with pluriglandular involvement, unspecified
- C75.9 Malignant neoplasm of endocrine gland, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the C75 range.
Empty Sella Syndrome
A condition when the SELLA TURCICA is not filled with pituitary tissue. The pituitary gland is either compressed, atrophied, or removed. There are two types: (1) primary empty sella is due a defect in the sella diaphragm leading to arachnoid herniation into the sellar space; (2) secondary empty sella is associated with the removal or treatment of PITUITARY NEOPLASMS.
Sella Turcica
A bony prominence situated on the upper surface of the body of the sphenoid bone. It houses the PITUITARY GLAND.
About the C75 Code Range
The ICD-10 code C75 series is used to identify malignant tumors found in various endocrine glands and related structures beyond the more common thyroid and adrenal glands. These codes are essential for documenting cancers such as parathyroid carcinoma, pituitary gland cancer, and rarer tumors like those of the pineal and carotid bodies.
Each subcode in the C75 category specifies the exact location of the malignant neoplasm, helping medical coders accurately capture the diagnosis. For example, C75.0 covers malignant neoplasms of the parathyroid gland, also known as parathyroid carcinoma or adenocarcinoma of the parathyroid gland. The code C75.1 applies to pituitary gland cancers, encompassing terms like pituitary carcinoma and malignant tumors of the hypothalamus. Other specific codes include C75.3 for pineal gland tumors, sometimes called pineoblastoma or primary malignant germ cell tumors of the pineal region, and C75.4 for malignant tumors of the carotid body, also termed adenocarcinomas of paraganglia. These detailed distinctions aid health professionals and coders in linking common disease names to their official ICD-10 codes for malignant endocrine gland tumors, ensuring precise documentation and treatment planning.
Questions About This Page
How many billable codes are in the C75 range?
Of the 9 codes in this range, 8 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the C75 range classify?
The range classifies malignant neoplasm of other endocrine glands and related structures. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
