C18.4
BillableMalignant neoplasm of transverse colon
Malignant neoplasm of transverse 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
C18.2Malignant neoplasm of ascending colon
C18.3Malignant neoplasm of hepatic flexure
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(30)
SNOMED CT
- Primary malignant neoplasm of transverse colon94105000
- Carcinoma of transverse colon312112002
- Malignant neoplasm of transverse colon363408006
- Malignant tumor of transverse colon363408006
- Malignant tumour of transverse colon363408006
- Transverse colon cancer363408006
- Primary adenocarcinoma of transverse colon721696009
- Primary carcinoma of transverse colon1259404005
- Primary carcinoma of colon1259436003
- Primary adenocarcinoma of colon1701000119104
UMLS
- Cancer of transverse colonC0153434
- Malignant Neoplasm of Transverse ColonC0153434
- Malignant neoplasm of transverse colonC0153434
- Malignant neoplasm of transverse colon (disorder)C0153434
- Malignant tumor of transverse colonC0153434
- Malignant tumour of transverse colonC0153434
- Transverse colon cancerC0153434
- malignant neoplasm of transverse colonC0153434
- transverse colon cancerC0153434
Clinical Terms
- transverse colon cancer
- Primary carcinoma of transverse colon
- Malignant tumor of transverse colon
- Primary carcinoma of colon
- Primary malignant neoplasm of transverse colon
- Cancer of transverse colon
- Malignant tumour of transverse colon
- Primary adenocarcinoma of colon
- Malignant neoplasm of transverse colon (disorder)
- Primary adenocarcinoma of transverse colon
- Carcinoma of transverse colon
Frequently Asked Questions
What is the ICD-10 code for malignant neoplasm of transverse colon?
The ICD-10-CM code for malignant neoplasm of transverse colon is C18.4. The full clinical description is "Malignant neoplasm of transverse colon". C18.4 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code C18.4 mean?
ICD-10-CM code C18.4 represents “Malignant neoplasm of transverse colon”. It is classified under Chapter 2: Neoplasms and is a billable/specific code that can be used on a claim.
Is C18.4 a billable code?
Yes, C18.4 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is C18.4 in?
C18.4 is in Chapter 2: Neoplasms (codes C00-D49).
What codes cannot be used with C18.4?
C18.4 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 C18.4 map to?
C18.4 maps to 7 SNOMED CT concepts: 312112002, 363408006, 1701000119104, 721696009, 1259436003, and 2 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for C18.4?
C18.4 is linked to 1 UMLS Concept Unique Identifier: C0153434. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does C18.4 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like malignant neoplasm of transverse 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 C18.4?
C18.4 maps to the ICD-11 code: 2B90.2Z (Malignant neoplasm of transverse 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.