C21.1
Malignant neoplasm of anal canal
Applicable To
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Malignant neoplasm of anal sphincter
Approximate Synonyms
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Cancer of the anal canal
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Primary malignant neoplasm of anal canal
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Primary squamous cell carcinoma of anal canal
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Squamous cell carcinoma, anal canal
Details
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C21.1 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 C21.1 became effective on October 1, 2022.
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This is the American ICD-10-CM version of C21.1 – other international versions of ICD-10 C21.1 may differ.