Is D28 a billable ICD-10-CM code?

No. D28 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does D28 sit in the tabular list?

Neoplasms (C00-D49), in the block Benign neoplasms, except benign neuroendocrine tumors (D10-D36).

What cannot be coded together with D28?

D28 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

D28

D28 — Benign neoplasm of other and unspecified female genital organs

Non-billable headerICD-10-CM

D28 is a non-billable header ICD-10-CM code for benign neoplasm of other and unspecified female genital organs. 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.

epoophoron cyst (Q50.5)
fimbrial cyst (Q50.4)
Gartner's duct cyst (Q52.4)
parovarian cyst (Q50.5)

Includes

Conditions this code covers.

adenomatous polyp
benign neoplasm of skin of female genital organs
benign teratoma

Other codes that can never be billed with D28

These codes carry an Excludes1 note pointing at D28. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading D28 alone.

N84Polyp of female genital tract
D21Other benign neoplasms of connective and other soft tissue
D21.5Benign neoplasm of connective and other soft tissue of pelvis

Risk adjustment

D28 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 D28

5 child codes. Green means billable.

Questions about D28

Is D28 a billable ICD-10-CM code?: No. D28 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does D28 sit in the tabular list?: Neoplasms (C00-D49), in the block Benign neoplasms, except benign neuroendocrine tumors (D10-D36).
What cannot be coded together with D28?: D28 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.