MCMCB Pro
C75

C75Malignant neoplasm of other endocrine glands and related structures

Non-billable headerICD-10-CM

C75 is a non-billable header ICD-10-CM code for malignant neoplasm of other endocrine glands and related structures. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • 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.-)

Risk adjustment

C75 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead C75

8 child codes. Green means billable.

Questions about C75

Is C75 a billable ICD-10-CM code?
No. C75 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does C75 sit in the tabular list?
Neoplasms (C00-D49), in the block Malignant neoplasms of thyroid and other endocrine glands (C73-C75).
What cannot be coded together with C75?
C75 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.