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