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3. Chapter - C00-D49
4. Section - C00-C14
5. Category - C09
6. C09.1

C09.1 - Malignant neoplasm of tonsillar pillar (anterior) (posterior)

• Applicable to Malignant neoplasm of tonsillar pillar (anterior) (posterior)
• The 2025 edition of ICD10-CM C09.1 became effective on October 1, 2024.
• This is the American ICD10-CM version of C09.1 - other international versions of ICD10 C09.1 may differ.
• C09.1 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

The following codes above C09.1 contain annotation back-references that may be applicable to C09.1:

• Chapter: C00-D49 - Neoplasms
• Section: C00-C14 - Malignant neoplasms of lip, oral cavity and pharynx
• Category: C09 - Malignant neoplasm of tonsil

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.