Is D18 a billable ICD-10-CM code?

No. D18 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does D18 sit in the tabular list?

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

D18

D18 — Hemangioma and lymphangioma, any site

Non-billable headerICD-10-CM

D18 is a non-billable header ICD-10-CM code for hemangioma and lymphangioma, any site. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes2 — not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

benign neoplasm of glomus jugulare (D35.6)
blue or pigmented nevus (D22.-)
nevus NOS (D22.-)
vascular nevus (Q82.5)

Other codes that can never be billed with D18

These codes carry an Excludes1 note pointing at D18. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading D18 alone.

D33Benign neoplasm of brain and other parts of central nervous system
D36.0Benign neoplasm of lymph nodes
D21Other benign neoplasms of connective and other soft tissue

Risk adjustment

D18 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 D18

2 child codes. Green means billable.

Questions about D18

Is D18 a billable ICD-10-CM code?: No. D18 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does D18 sit in the tabular list?: Neoplasms (C00-D49), in the block Benign neoplasms, except benign neuroendocrine tumors (D10-D36).