Non-Billable / Non-Specific Code
ICD-10-CM D44 is the diagnosis code for Neoplasm of uncertain behavior of endocrine glands. This code falls under the section "Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes" within Chapter 2 — Neoplasms (C00-D49). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as D44. They are mutually exclusive:
Understanding where D44 sits in the ICD-10-CM classification helps ensure proper coding:
No, D44 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
D44 is the ICD-10-CM diagnosis code for "Neoplasm of uncertain behavior of endocrine glands". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
D44 is located in Section D37-D48 — "Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes" within Chapter 2 of the ICD-10-CM Tabular List.
D44 has 9 sub-code(s) that provide more specific detail: D44.0, D44.1, D44.2, D44.3, D44.4 and more.
Use D44 when the patients documented diagnosis matches "Neoplasm of uncertain behavior of endocrine glands" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Neoplasm of uncertain behavior of endocrine glands is D44.
No, D44 is non-billable. Use a more specific sub-code for primary diagnosis billing.
D44 is in Chapter 2 of the ICD-10-CM Tabular List.
Type 1 Excludes for D44 include: multiple endocrine adenomatosis (E31.2-); multiple endocrine neoplasia (E31.2-); neoplasm of uncertain behavior of endocrine pancreas (D37.8) and more.
Yes, D44 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.