C09.0 MALIGNANT NEOPLASM OF TONSILLAR FOSSA

Code Information

Diagnosis Code: C09.0

Short Description: Malignant neoplasm of tonsillar fossa

Long Description: Malignant neoplasm of tonsillar fossa

Code Classification:

  • Neoplasms (C00–D48)
    • Malignant neoplasms of lip, oral cavity and pharynx (C00-C14)
      • Malignant neoplasm of tonsil (C09)
        • C09.0 Malignant neoplasm of tonsillar fossa

Code Version: 2017 ICD-10-CM

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
C09.0 Right Arrow 146.1 Mal neo tonsillar fossa
This ICD-10 to ICD-9 data is based on the 2015 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

No. ICD-10 Code ICD-10 Description
1 C09 Malignant neoplasm of tonsil
2 C09.1 Malignant neoplasm of tonsillar pillar (anterior) (posterior)
3 C09.8 Malignant neoplasm of overlapping sites of tonsil
4 C09.9 Malignant neoplasm of tonsil, unspecified



This page was last updated on: 1/1/2017