ICD-10-CM 2027 diagnosis code

D20Benign neoplasm of soft tissue of retroperitoneum and peritoneum

Not billable — use a more specific code

D20 is a header code, so it can't be reported by itself. Choose one of the 2 more specific codes beneath it.Short description: Benign neoplm of soft tissue of retroperiton and peritoneum

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About D20

D20 is the ICD-10-CM diagnosis code for benign neoplasm of soft tissue of retroperitoneum and peritoneum. It belongs to block D10-D36 (benign neoplasms, except benign neuroendocrine tumors) and chapter 2 (neoplasms). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: D20.0 (retroperitoneum) and D20.1 (peritoneum).

Don't report D20 together with the conditions in its Excludes1 note: benign lipomatous neoplasm of peritoneum and retroperitoneum (D17.79) and benign neoplasm of mesothelial tissue (D19.-).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under D20

Coding notes

Excludes1Not coded here — never report together with this code

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

Notes that apply from higher levels

Instructions written at a parent level also apply to D20.

Broader instructions also apply from Chapter 2: Neoplasms.

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about D20

Is D20 billable?: No. D20 is a header code. Report one of its more specific subcodes instead.