C18.2
BillableMalignant neoplasm of ascending colon
Malignant neoplasm of ascending colon
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- •Kaposi's sarcoma of gastrointestinal sitesC46.4
- malignant carcinoid tumors of the colon (C7A.02-)
Excludes 2
Conditions not included here, but the patient may have both
Related Codes(9)
C18.0Malignant neoplasm of cecum
C18.1Malignant neoplasm of appendix
C18.3Malignant neoplasm of hepatic flexure
C18.4Malignant neoplasm of transverse colon
C18.5Malignant neoplasm of splenic flexure
C18.6Malignant neoplasm of descending colon
C18.7Malignant neoplasm of sigmoid colon
C18.8Malignant neoplasm of overlapping sites of colon
C18.9Malignant neoplasm of colon, unspecified
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(54)
SNOMED CT
- Primary malignant neoplasm of ascending colon93683002
- Primary malignant neoplasm of hepatic flexure of colon93826009
- Primary malignant neoplasm of transverse colon94105000
- Neoplasm of hepatic flexure of colon126841009
- Tumor of hepatic flexure126841009
- Tumour of hepatic flexure126841009
- Carcinoma of ascending colon312111009
- Hepatic flexure colon cancer363407001
- Malignant neoplasm of hepatic flexure of colon363407001
- Malignant neoplasm of right colic flexure363407001
- Malignant tumor of hepatic flexure363407001
- Malignant tumour of hepatic flexure363407001
- Ascending colon cancer363412000
- Malignant neoplasm of ascending colon363412000
- Malignant tumor of ascending colon363412000
- Malignant tumour of ascending colon363412000
- Primary adenocarcinoma of ascending colon and right flexure721695008
- Primary adenocarcinoma of transverse colon721696009
- Primary carcinoma of ascending colon1259403004
- Primary carcinoma of colon1259436003
- Primary adenocarcinoma of ascending colon681601000119101
- Primary adenocarcinoma of colon1701000119104
UMLS
- Ascending colon cancerC0153439
- Malignant Neoplasm of Ascending ColonC0153439
- Malignant neoplasm of ascending colonC0153439
- Malignant neoplasm of ascending colon (disorder)C0153439
- Malignant tumor of ascending colonC0153439
- Malignant tumour of ascending colonC0153439
- ascending cancer colonC0153439
- ascending colon cancerC0153439
- malignant neoplasm of ascending colonC0153439
Clinical Terms
- Primary malignant neoplasm of ascending colon
- Malignant neoplasm of ascending colon (disorder)
- Primary adenocarcinoma of colon
- Primary adenocarcinoma of ascending colon
- Ascending colon cancer
- Tumor of hepatic flexure
- Tumour of hepatic flexure
- Malignant tumor of hepatic flexure
- Carcinoma of ascending colon
- Primary malignant neoplasm of transverse colon
- ascending cancer colon
- Primary adenocarcinoma of transverse colon
- Malignant neoplasm of right colic flexure
- Malignant tumor of ascending colon
- Primary carcinoma of ascending colon
- Primary malignant neoplasm of hepatic flexure of colon
- Primary adenocarcinoma of ascending colon and right flexure
- Primary carcinoma of colon
- Hepatic flexure colon cancer
- Malignant tumour of ascending colon
- Neoplasm of hepatic flexure of colon
- Malignant tumour of hepatic flexure
- Malignant neoplasm of hepatic flexure of colon
Frequently Asked Questions
What is the ICD-10 code for malignant neoplasm of ascending colon?
The ICD-10-CM code for malignant neoplasm of ascending colon is C18.2. The full clinical description is "Malignant neoplasm of ascending colon". C18.2 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code C18.2 mean?
ICD-10-CM code C18.2 represents “Malignant neoplasm of ascending colon”. It is classified under Chapter 2: Neoplasms and is a billable/specific code that can be used on a claim.
Is C18.2 a billable code?
Yes, C18.2 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is C18.2 in?
C18.2 is in Chapter 2: Neoplasms (codes C00-D49).
What codes cannot be used with C18.2?
C18.2 has Excludes1 notes indicating codes that cannot be used together with it, including: Kaposi's sarcoma of gastrointestinal sites (C46.4); malignant carcinoid tumors of the colon (C7A.02-).
What SNOMED CT codes does C18.2 map to?
C18.2 maps to 13 SNOMED CT concepts: 363412000, 312111009, 363407001, 126841009, 681601000119101, and 8 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for C18.2?
C18.2 is linked to 1 UMLS Concept Unique Identifier: C0153439. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does C18.2 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like malignant neoplasm of ascending colon affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of C18.2?
C18.2 maps to the ICD-11 code: 2B90.0Z (Malignant neoplasm of ascending colon and right flexure of colon, unspecified).
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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.