ICD-10-CM · Chapter 2 · C00-D49
D44 Neoplasm of uncertain behavior of endocrine glands
Excludes 1 (cannot be coded together)
- multiple endocrine adenomatosis (E31.2-)
- multiple endocrine neoplasia (E31.2-)
- neoplasm of uncertain behavior of endocrine pancreas (D37.8)
- neoplasm of uncertain behavior of ovary (D39.1-)
- neoplasm of uncertain behavior of testis (D40.1-)
- neoplasm of uncertain behavior of thymus (D38.4)
Subcodes
Each subcode links to a detail page with full clinical annotations.
| Code | Description | Billable |
|---|---|---|
| D44..0 | Neoplasm of uncertain behavior of thyroid gland | Yes |
| D44..1 | Neoplasm of uncertain behavior of adrenal gland | No |
| D44..10 | Neoplasm of uncertain behavior of unspecified adrenal gland | Yes |
| D44..11 | Neoplasm of uncertain behavior of right adrenal gland | Yes |
| D44..12 | Neoplasm of uncertain behavior of left adrenal gland | Yes |
| D44..2 | Neoplasm of uncertain behavior of parathyroid gland | Yes |
| D44..3 | Neoplasm of uncertain behavior of pituitary gland | Yes |
| D44..4 | Neoplasm of uncertain behavior of craniopharyngeal duct | Yes |
| D44..5 | Neoplasm of uncertain behavior of pineal gland | Yes |
| D44..6 | Neoplasm of uncertain behavior of carotid body | Yes |
| D44..7 | Neoplasm of uncertain behavior of aortic body and other paraganglia | Yes |
| D44..9 | Neoplasm of uncertain behavior of unspecified endocrine gland | Yes |
Last reviewed: September 2026