D44 — Neoplasm of uncertain behavior of endocrine glands

Not billable

Is D44 billable?

No — D44 is a non-billable header code. D44 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 11 billable codes beneath D44.

Billable codes under this header

D44 at a glance

Code	D44
Description	Neoplasm of uncertain behavior of endocrine glands
Billable	No — header code
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

How is D44 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to D44. They show the wording a clinician may have documented, which often differs from the Tabular description.

Adenoma › endocrine, multiple › two or more specified sites
Adenoma › multiple endocrine › two or more specified sites

Excludes1 — never code together

The conditions below can never be reported together with D44 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

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)

Excludes1 — never code together — inherited from D37-D48

The conditions below can never be reported together with D44 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

neoplasms of unspecified behavior (D49.-)

What codes fall under D44? (9)

How long has D44 existed?

D44 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

Which codes are confused with D44?

ICD-10-CM declares these codes mutually exclusive with D44 — exactly one of each pair can be correct for a given encounter.