ICD-10-CM Diagnosis Code (2025)
Official Description for C09
Malignant neoplasm of tonsil
Coding Notes & Guidelines for C09
Excludes2: Not Included Here
- malignant neoplasm of lingual tonsil (C02.4)
- malignant neoplasm of pharyngeal tonsil (C11.1)
Use Additional Code
- code to identify:
- alcohol abuse and dependence (F10.-)
- exposure to environmental tobacco smoke (Z77.22)
- exposure to tobacco smoke in the perinatal period (P96.81)
- history of tobacco dependence (Z87.891)
- occupational exposure to environmental tobacco smoke (Z57.31)
- tobacco dependence (F17.-)
- tobacco use (Z72.0)
Inclusion Terms
- Malignant neoplasm of tonsil NOS
- Malignant neoplasm of faucial tonsils
- Malignant neoplasm of palatine tonsils
Child Codes (More Specific Codes for C09):
About ICD-10-CM Code C09 (Malignant neoplasm of tonsil)
ICD-10-CM code C09 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM C09 became effective on October 1, 2024.
This page provides detailed information about C09 - Malignant neoplasm of tonsil. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Malignant neoplasm of tonsil.