Alphabetic Index FY2027

D35

Benign neoplasm of other and unspecified endocrine glands

FY2027Chapter 2: Neoplasms/D10–D36 Benign neoplasms, except benign neuroendocrine tumors

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

D35 is a non-billable ICD-10-CM code category for benign neoplasm of other and unspecified endocrine glands. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are D35.0 Benign neoplasm of adrenal gland, D35.1 Benign neoplasm of parathyroid gland, D35.2 Benign neoplasm of pituitary gland, D35.3 Benign neoplasm of craniopharyngeal duct and 5 more. Its coding notes include a Use additional code instruction and 4 Excludes1 entries.

Use additional code

Add the listed code as a secondary code, if known.

This code
  • code to identify any functional activity

Excludes1

Not coded here. The listed conditions generally should not be reported together.

This code
  • benign neoplasm of endocrine pancreas (D13.7)
  • benign neoplasm of ovary (D27.-)
  • benign neoplasm of testis (D29.2.-)
  • benign neoplasm of thymus (D15.0)

Notes

Also from chapter/block level (8 notes)
Inherited from Chapter 2 Neoplasms
  • 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).

More specific codes under D35 9