Is D20.1 a billable ICD-10-CM code?

Yes. D20.1 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does D20.1 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 D20.1?

D20.1 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 D20.1 (D20) and apply to it just the same.

D20.1

D20.1 — Benign neoplasm of soft tissue of peritoneum

Billable / specific codeICD-10-CM

D20.1 is a billable, specific ICD-10-CM code for benign neoplasm of soft tissue of peritoneum. It is valid for submission on a claim.

Excludes1 inherited from the categories above D20.1

These are not written on D20.1, but they bind it: a note on a category applies to every code beneath it. Billing D20.1 with anything listed here is a denial.

Written on D20 — Benign neoplasm of soft tissue of retroperitoneum and peritoneum

benign lipomatous neoplasm of peritoneum and retroperitoneum (D17.79)
benign neoplasm of mesothelial tissue (D19.-)

Other codes that can never be billed with D20.1

These codes carry an Excludes1 note pointing at D20.1. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading D20.1 alone.

D21Other benign neoplasms of connective and other soft tissue

Risk adjustment

D20.1 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

D20.1 is named in 9 Medicare coverage policies — 9 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A56421Billing and Coding: CT of the Abdomen and Pelvis
A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
A56695Billing and Coding: Implantable Infusion Pump
A57063Billing and Coding: Diagnostic and Therapeutic Esophagogastroduodenoscopy

Code history

D20.1 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 D20. If D20.1 is not quite right, the correct code is usually one of these.

D20.0Benign neoplasm of soft tissue of retroperitoneum

Questions about D20.1

Is D20.1 a billable ICD-10-CM code?: Yes. D20.1 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does D20.1 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 D20.1?: D20.1 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 D20.1 (D20) and apply to it just the same.