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D44

Non-billable

Neoplasm of uncertain behavior of endocrine glands

D44 is the ICD-10-CM code for Neoplasm of uncertain behavior of endocrine glands. It is a non-billable category code — use a more specific child code such as D44.0 for billing.

Status
Header (non-billable)
Chapter
C00-D49
Subcodes
9
Edition
FY2026

C00-D49 Neoplasms

What this means — in plain language

MedlinePlus · NIH

Your endocrine system includes eight major glands throughout your body. These glands make hormones . Hormones are chemical messengers. They travel through your bloodstream to tissues or organs. Hormones work slowly and affect body processes from head to toe. These include: Growth and development Metabolism - digestion, elimination, breathing, blood circulation and maintaining body temperature Sexual function…

Read more about Endocrine Diseases at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Excludes1 — not coded here

  • •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)

Frequently asked questions

What is ICD-10 code D44?
D44 is the ICD-10-CM code for "Neoplasm of uncertain behavior of endocrine glands". It falls under C00-D49 Neoplasms.
Is D44 a billable code?
No — D44 is a non-billable header code. Use a more specific child code (such as D44.0) for billing.
What are the subcodes of D44?
D44 has 9 more specific child codes, including D44.0, D44.1, D44.2.
What is excluded from D44?
Excludes1 (not coded here): 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-).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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