D44: Neoplasm of uncertain behavior of endocrine glands
Codes under D44 (Neoplasm of uncertain behavior of endocrine glands). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| D44.0 | Neoplasm of uncertain behavior of thyroid gland | ✓ |
| D44.0 | Neoplasm of uncertain behavior of thyroid gland | ✓ |
| D44.1 | Neoplasm of uncertain behavior of adrenal gland | — |
| D44.1 | Neoplasm of uncertain behavior of adrenal gland | — |
| D44.2 | Neoplasm of uncertain behavior of parathyroid gland | ✓ |
| D44.2 | Neoplasm of uncertain behavior of parathyroid gland | ✓ |
| D44.3 | Neoplasm of uncertain behavior of pituitary gland | ✓ |
| D44.3 | Neoplasm of uncertain behavior of pituitary gland | ✓ |
| D44.4 | Neoplasm of uncertain behavior of craniopharyngeal duct | ✓ |
| D44.4 | Neoplasm of uncertain behavior of craniopharyngeal duct | ✓ |
| D44.5 | Neoplasm of uncertain behavior of pineal gland | ✓ |
| D44.5 | Neoplasm of uncertain behavior of pineal gland | ✓ |
| D44.6 | Neoplasm of uncertain behavior of carotid body | ✓ |
| D44.6 | Neoplasm of uncertain behavior of carotid body | ✓ |
| D44.7 | Neoplasm of uncertain behavior of aortic body and other paraganglia | ✓ |
| D44.7 | Neoplasm of uncertain behavior of aortic body and other paraganglia | ✓ |
| D44.9 | Neoplasm of uncertain behavior of unspecified endocrine gland | ✓ |
| D44.9 | Neoplasm of uncertain behavior of unspecified endocrine gland | ✓ |
| D44.10 | Neoplasm of uncertain behavior of unspecified adrenal gland | ✓ |
| D44.10 | Neoplasm of uncertain behavior of unspecified adrenal gland | ✓ |
| D44.11 | Neoplasm of uncertain behavior of right adrenal gland | ✓ |
| D44.11 | Neoplasm of uncertain behavior of right adrenal gland | ✓ |
| D44.12 | Neoplasm of uncertain behavior of left adrenal gland | ✓ |
| D44.12 | Neoplasm of uncertain behavior of left adrenal gland | ✓ |
Frequently asked questions
What is ICD-10-CM code D44?
D44 is an ICD-10-CM category covering Neoplasm of uncertain behavior of endocrine glands. It contains 24 more specific diagnosis codes, 22 of which are billable.
Is D44 a billable code?
No — D44 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example D44.0 — Neoplasm of uncertain behavior of thyroid gland). 22 of the 24 codes under D44 are billable.
What codes fall under D44?
D44 includes D44.0, D44.0, D44.1, D44.1, D44.2, plus 19 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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