2026 ICD-10-CM Diagnosis Code C48Malignant neoplasm of retroperitoneum and peritoneum
C48 is a non-billable ICD-10-CM category code for malignant neoplasm of retroperitoneum and peritoneum, so it cannot be submitted on claims. Use a more specific code from this category instead, such as C48.0, C48.1, C48.2, and C48.8.
Code Identity
Code Classification
Specific Coding for Malignant neoplasm of retroperitoneum and peritoneumOverview
Non-specific codes like C48 require more characters. Use one of these billable codes instead:
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
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Code HistoryHistory
Questions About C48Overview
Is C48 (Malignant neoplasm of retroperitoneum and peritoneum) a billable code?
No. This is a category header that groups the codes for malignant neoplasm of retroperitoneum and peritoneum, and headers cannot be submitted on claims. Claims for malignant neoplasm of retroperitoneum and peritoneum need a more specific code from this category, such as C48.0, C48.1, and C48.2.
