Is D44 a billable ICD-10-CM code?

No. D44 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does D44 sit in the tabular list?

Neoplasms (C00-D49), in the block Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes (D37-D48).

What cannot be coded together with D44?

D44 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

D44

D44 — Neoplasm of uncertain behavior of endocrine glands

Non-billable headerICD-10-CM

D44 is a non-billable header ICD-10-CM code for neoplasm of uncertain behavior of endocrine glands. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

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)

Risk adjustment

D44 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead D44

9 child codes. Green means billable.

Questions about D44

Is D44 a billable ICD-10-CM code?: No. D44 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does D44 sit in the tabular list?: Neoplasms (C00-D49), in the block Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes (D37-D48).
What cannot be coded together with D44?: D44 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.