C18.1
Malignant neoplasm of appendix
Approximate Synonyms
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Adenocarcinoma of appendix
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Cancer of the appendix
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Cancer of the appendix, adenocarcinoma
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Primary malignant neoplasm of appendix
Clinical Information
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A malignant neoplasm arising from the wall of the appendix. Representative examples include carcinomas and lymphomas.
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A primary or metastatic malignant neoplasm that affects the appendix. Representative examples include carcinoma and lymphoma.
Details
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C18.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
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The 2023 edition of ICD-10-CM C18.1 became effective on October 1, 2022.
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This is the American ICD-10-CM version of C18.1 – other international versions of ICD-10 C18.1 may differ.