C21.2
BillableMalignant neoplasm of cloacogenic zone
Malignant neoplasm of cloacogenic zone
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- Kaposi's sarcoma of gastrointestinal sites (C46.4)
Excludes 2
Conditions not included here, but the patient may have both
- gastrointestinal stromal tumors (C49.A-)
- malignant carcinoid tumors of the colon (C7A.02-)
- malignant melanoma of anal margin (C43.51)
- malignant melanoma of anal skin (C43.51)
- malignant melanoma of perianal skin (C43.51)
- other and unspecified malignant neoplasm of anal margin (C44.500, C44.510, C44.520, C44.590)
- other and unspecified malignant neoplasm of anal skin (C44.500, C44.510, C44.520, C44.590)
- other and unspecified malignant neoplasm of perianal skin (C44.500, C44.510, C44.520, C44.590)
Also Known As / Clinical Terms
SNOMED CT
- Primary malignant neoplasm of anal canal93669004
- Primary malignant neoplasm of cloacogenic zone109840002
- Anal mucosa finding249632006
- Anal mucosa observation249632006
- Malignant neoplasm of cloacogenic zone363491008
- Malignant tumor of cloacogenic zone363491008
- Malignant tumour of cloacogenic zone363491008
- Primary cloacogenic carcinoma of anal canal721709000
Frequently Asked Questions
What is ICD-10 code C21.2?
ICD-10-CM code C21.2 represents "Malignant neoplasm of cloacogenic zone". It is a billable/specific code that can be used on a claim.
Is C21.2 a billable code?
Yes, C21.2 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is C21.2 in?
C21.2 is in Chapter 2: Neoplasms (codes C00-D49).
What codes cannot be used with C21.2?
C21.2 has Excludes1 notes indicating codes that cannot be used together with it, including: Kaposi's sarcoma of gastrointestinal sites (C46.4).
What SNOMED CT codes does C21.2 map to?
C21.2 maps to 5 SNOMED CT concepts: 249632006, 363491008, 721709000, 93669004, 109840002. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for C21.2?
C21.2 is linked to 1 UMLS Concept Unique Identifier: C0345886. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.