C18.8
BillableMalignant neoplasm of overlapping sites of colon
Malignant neoplasm of overlapping sites of 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
C18.4Malignant neoplasm of transverse colon
C18.5Malignant neoplasm of splenic flexure
C18.6Malignant neoplasm of descending colon
C18.7Malignant neoplasm of sigmoid 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(15)
SNOMED CT
UMLS
Clinical Terms
- Overlapping malignant neoplasm of colon and rectum
- Primary malignant neoplasm of overlapping sites of colon
- Cancer of the colon, overlapping sites
- Overlapping malignant neoplasm of colon
- Overlapping malignant neoplasm of colon (disorder)
Frequently Asked Questions
What is the ICD-10 code for malignant neoplasm of overlapping sites of colon?
The ICD-10-CM code for malignant neoplasm of overlapping sites of colon is C18.8. The full clinical description is "Malignant neoplasm of overlapping sites of colon". C18.8 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code C18.8 mean?
ICD-10-CM code C18.8 represents “Malignant neoplasm of overlapping sites of colon”. It is classified under Chapter 2: Neoplasms and is a billable/specific code that can be used on a claim.
Is C18.8 a billable code?
Yes, C18.8 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is C18.8 in?
C18.8 is in Chapter 2: Neoplasms (codes C00-D49).
What codes cannot be used with C18.8?
C18.8 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 C18.8 map to?
C18.8 maps to 3 SNOMED CT concepts: 109838007, 96281000119107, 1163568002. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for C18.8?
C18.8 is linked to 1 UMLS Concept Unique Identifier: C1263700. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does C18.8 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like malignant neoplasm of overlapping sites of 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 C18.8?
C18.8 maps to the ICD-11 code: 2B90.Z (Malignant neoplasms of colon, unspecified).
Automate ICD-10 Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.
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.