Diagnosis Code: C21.8

Short Description: Malig neoplasm of ovrlp sites of rectum, anus and anal canal

Long Description: Malignant neoplasm of overlapping sites of rectum, anus and anal canal

The code C21.8 is VALID for claim submission

Code Classification:

• Neoplasms (C00–D49)
  • Malignant neoplasms of digestive organs (C15-C26)
    • Malignant neoplasm of anus and anal canal (C21)
      • C21.8 Malig neoplasm of ovrlp sites of rectum, anus and anal canal

Code Version: 2022 ICD-10-CM

Synonyms

• Anorectal adenocarcinoma
• Malignant neoplasm of anorectum
• Malignant tumor of anorectal junction
• Overlapping malignant neoplasm of rectum, anus and anal canal

Diagnostic Related Group(s)

The code C21.8 is grouped in the following Diagnostic Related Group(s) (MS-DRG v39.0)

• Digestive Malignancy With Mcc (374)
• Digestive Malignancy With Cc (375)
• Digestive Malignancy Without Cc/mcc (376)

References to Index of Diseases and Injuries

The code C21.8 has the following ICD-10-CM references to the Index of Diseases and Injuries

• Inclusion Terms:
  • Malignant neoplasm of anorectal junction
  • Malignant neoplasm of anorectum
  • Primary malignant neoplasm of two or more contiguous sites of rectum, anus and anal canal

Crosswalk Information

Similar Codes

This page was last updated on: 10/1/2023

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