ICD-10 Code C09.0 – Malignant neoplasm of tonsillar fossa (2026): Diagnosis, Symptoms & Billing Guide
The ICD-10 code for Malignant neoplasm of tonsillar fossa is C09.0.2026 ICD-10-CM Diagnosis Code C09.0 – Malignant neoplasm of tonsillar fossa Related ICD-10 Codes Parent code: C09 – Malignant neoplasm of tonsil Other codes in same category: C09.1 – Malignant neoplasm of tonsillar pillar (anterior) (posterior), C09.8 – Malignant neoplasm of overlapping sites of tonsil,…