Is D23.4 a billable ICD-10-CM code?

Yes. D23.4 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does D23.4 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 D23.4?

D23.4 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above D23.4 (D23) and apply to it just the same.

D23.4

D23.4 — Other benign neoplasm of skin of scalp and neck

Billable / specific codeICD-10-CM

D23.4 is a billable, specific ICD-10-CM code for other benign neoplasm of skin of scalp and neck. It is valid for submission on a claim.

Excludes1 inherited from the categories above D23.4

These are not written on D23.4, but they bind it: a note on a category applies to every code beneath it. Billing D23.4 with anything listed here is a denial.

Written on D23 — Other benign neoplasms of skin

benign lipomatous neoplasms of skin (D17.0-D17.3)

Excludes2 inherited from the categories above D23.4

Also inherited, and the opposite of Excludes1: these conditions are not part of D23.4, but a patient can have both, so you may code both.

Written on D23 — Other benign neoplasms of skin

melanocytic nevi (D22.-)

Risk adjustment

D23.4 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.

Medicare coverage

D23.4 is named in 15 Medicare coverage policies — 15 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A56346Billing and Coding: Removal of Benign and Malignant Skin Lesions
A56464Billing and Coding: Flow Cytometry
A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
A56695Billing and Coding: Implantable Infusion Pump

How D23.4 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to D23.4.

Turban tumor
Tumor›turban

Code history

D23.4 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share D23. If D23.4 is not quite right, the correct code is usually one of these.

Questions about D23.4

Is D23.4 a billable ICD-10-CM code?: Yes. D23.4 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does D23.4 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 D23.4?: D23.4 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above D23.4 (D23) and apply to it just the same.