2026 ICD-10-CM Diagnosis Code D35Benign neoplasm of other and unspecified endocrine glands

ICD-10-CM Codes›C00–D49›D10-D36›D35

ICD-10-CM D35
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

D35 is a non-billable ICD-10-CM category code for benign neoplasm of other and unspecified endocrine glands, so it cannot be submitted on claims. Use a more specific code from this category instead, such as D35.00, D35.01, D35.02, and D35.1.

Code Identity

ICD-10-CM Code
D35
Billable Status
No — Non-Billable Category
Code Describes
Benign neoplasm of other and unspecified endocrine glands
Chapter
D10-D36
Benign neoplasms, except benign neuroendocrine tumors

Code Classification

ChapterC00–D49Neoplasms
SectionD10-D36Benign neoplasms, except benign neuroendocrine tumors
CategoryD35Benign neoplasm of other and unspecified endocrine glands
This CodeD35Benign neoplasm of other and unspecified endocrine glands

Specific Coding for Benign neoplasm of other and unspecified endocrine glandsOverview

Non-specific codes like D35 require more characters. Use one of these billable codes instead:

  • D35.0 for Benign neoplasm of adrenal gland

  • Use D35.00 for Benign neoplasm of unspecified adrenal gland

  • Use D35.01 for Benign neoplasm of right adrenal gland

  • Use D35.02 for Benign neoplasm of left adrenal gland

  • Use D35.1 for Benign neoplasm of parathyroid gland

  • Use D35.2 for Benign neoplasm of pituitary gland

  • Use D35.3 for Benign neoplasm of craniopharyngeal duct

  • Use D35.4 for Benign neoplasm of pineal gland

  • Use D35.5 for Benign neoplasm of carotid body

  • Use D35.6 for Benign neoplasm of aortic body and other paraganglia

  • Use D35.7 for Benign neoplasm of other specified endocrine glands

  • Use D35.9 for Benign neoplasm of endocrine gland, unspecified

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Use Additional Code

  • code to identify any functional activity

Type 1 Excludes

  • benign neoplasm of endocrine pancreas D13.7
  • benign neoplasm of ovary D27
  • benign neoplasm of testis D29.2
  • benign neoplasm of thymus D15.0

Patient EducationClinical

Benign Tumors

Tumors are abnormal growths in your body. They can be either benign or malignant. Benign tumors aren't cancer. Malignant ones are. Benign tumors grow only in one place. They cannot spread or invade other parts of your body. Even so, they can be dangerous if they press on vital organs, such as your brain.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About D35Overview

Is D35 (Benign neoplasm of other and unspecified endocrine glands) a billable code?

No. This is a category header that groups the codes for benign neoplasm of other and unspecified endocrine glands, and headers cannot be submitted on claims. Claims for benign neoplasm of other and unspecified endocrine glands need a more specific code from this category, such as D35.00, D35.01, and D35.02.