Malignant neoplasm of overlapping sites of rectum, anus and anal canal
- C21.8 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- Short description: Malig neoplasm of ovrlp sites of rectum, anus and anal canal
- The 2024 edition of ICD-10-CM C21.8 became effective on October 1, 2023.
- This is the American ICD-10-CM version of C21.8 – other international versions of ICD-10 C21.8 may differ.
Applicable To
- Malignant neoplasm of anorectal junction
- Malignant neoplasm of anorectum
- Primary malignant neoplasm of two or more contiguous sites of rectum, anus and anal canal
The following code(s) above C21.8 contain annotation back-references
that may be applicable to C21.8:
- C00-D49 Neoplasms
- C15-C26 Malignant neoplasms of digestive organs
- C21 Malignant neoplasm of anus and anal canal
Approximate Synonyms
- Cancer of the rectum, anus, or anal canal
- Cancer rectum anus or anal canal overlapping sites
- Malignant neoplasm of anorectum
- Overlapping malignant neoplasm of rectum, anus and anal canal
ICD-10-CM C21.8 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):
- 374 Digestive malignancy with mcc
- 375 Digestive malignancy with cc
- 376 Digestive malignancy without cc/mcc
Convert C21.8 to ICD-9-CMCode History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
- 2024 (effective 10/1/2023): No change