Coding experts Alicia and Laureen from CCO review the new 2025 ICD-10-CM code changes.
2C50 Malignant neoplasms of retroperitoneum
International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01
A primary or metastatic malignant neoplasm involving the retroperitoneum. The vast majority of cases are carcinomas, lymphomas, or sarcomas.
exclusions
sections/codes in this section (2C50-2C50)
postcoordination
Add Stem and/or Extension codes to form a cluster code which adds detail to the condition.
Histopathology - only one may be selected
Has manifestation - multiple selections are allowed
Has severity - only one may be selected
Has alternative severity2 - only one may be selected
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