Non-Billable / Non-Specific Code
ICD-10-CM C48 is the diagnosis code for Malignant neoplasm of retroperitoneum and peritoneum. This code falls under the section "Malignant neoplasms of mesothelial and soft tissue" within Chapter 2 — Neoplasms (C00-D49). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as C48. They are mutually exclusive:
Understanding where C48 sits in the ICD-10-CM classification helps ensure proper coding:
No, C48 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
C48 is the ICD-10-CM diagnosis code for "Malignant neoplasm of retroperitoneum and peritoneum". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
C48 is located in Section C45-C49 — "Malignant neoplasms of mesothelial and soft tissue" within Chapter 2 of the ICD-10-CM Tabular List.
C48 has 4 sub-code(s) that provide more specific detail: C48.0, C48.1, C48.2, C48.8.
Use C48 when the patients documented diagnosis matches "Malignant neoplasm of retroperitoneum and peritoneum" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Malignant neoplasm of retroperitoneum and peritoneum is C48.
No, C48 is non-billable. Use a more specific sub-code for primary diagnosis billing.
C48 is in Chapter 2 of the ICD-10-CM Tabular List.
Type 1 Excludes for C48 include: Kaposi's sarcoma of connective tissue (C46.1); mesothelioma (C45.-).
Yes, C48 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.