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2. ICD-10 Codes
3. Chapter - C00-D49
4. Section - C15-C26
5. Category - C18
6. C18.1

C18.1 - Malignant neoplasm of appendix

• Applicable to Malignant neoplasm of appendix
• The 2025 edition of ICD10-CM C18.1 became effective on October 1, 2024.
• This is the American ICD10-CM version of C18.1 - other international versions of ICD10 C18.1 may differ.
• C18.1 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

The following codes above C18.1 contain annotation back-references that may be applicable to C18.1:

• Chapter: C00-D49 - Neoplasms
• Section: C15-C26 - Malignant neoplasms of digestive organs
• Category: C18 - Malignant neoplasm of colon

Browse other similar CM codes:

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.