C48Header code — not billable

Malignant neoplasm of retroperitoneum and peritoneum

Chapter
2. Neoplasms
Category
C48
Effective date
October 1, 2026

Related codes in category C48

C48.0Malignant neoplasm of retroperitoneumYesC48.1Malignant neoplasm of specified parts of peritoneumYesC48.2Malignant neoplasm of peritoneum, unspecifiedYesC48.8Malig neoplasm of ovrlp sites of retroperiton and peritoneumYes

Frequently asked questions

What is ICD-10 code C48?

C48 is an ICD-10-CM diagnosis code for Malignant neoplasm of retroperitoneum and peritoneum.

Is C48 a billable code?

No. C48 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is C48 in?

C48 falls under Chapter 2: Neoplasms.

When did C48 become effective?

C48 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to C48?

C48 belongs to category C48, which includes 4 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.