146.1 MAL NEO TONSILLAR FOSSA

Code Information

Diagnosis Code: 146.1

Short Description: Mal neo tonsillar fossa

Long Description: Malignant neoplasm of tonsillar fossa

Code Classification:

  • Neoplasms (140–239)
    • Malignant neoplasm of lip, oral cavity, and pharynx (140-149)
      • 146 Malignant neoplasm of oropharynx
        • 146.1 Mal neo tonsillar fossa

Code Version: 2015 ICD-9-CM

References to Index of Diseases and Injuries

The code 146.1 has the following ICD-9-CM references to the Index of Diseases and Injuries
  •  
    • fossa (of)
      • tonsillar���������������������������������������� 146.1��� 198.89��� 230.0����� 210.6����� 235.1����� 239.0
    • glossopharyngeal sulcus��������������������� 146.1��� 198.89��� 230.0����� 210.6����� 235.1����� 239.0
    • tonsillar fossa������������������������������������� 146.1��� 198.89��� 230.0����� 210.6����� 235.1����� 239.0

Crosswalk Information

The code 146.1 converts into the following ICD-10 code(s):
ICD-9 Code ICD-10 Code ICD-10 Description
146.1 Right Arrow C09.0 Malignant neoplasm of tonsillar fossa
This ICD-9 to ICD-10 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-9 Code ICD-9 Description
1 146.0 Malignant neoplasm of tonsil
2 146.2 Malignant neoplasm of tonsillar pillars (anterior) (posterior)
3 146.3 Malignant neoplasm of vallecula epiglottica
4 146.4 Malignant neoplasm of anterior aspect of epiglottis
5 146.5 Malignant neoplasm of junctional region of oropharynx
6 146.6 Malignant neoplasm of lateral wall of oropharynx
7 146.7 Malignant neoplasm of posterior wall of oropharynx
8 146.8 Malignant neoplasm of other specified sites of oropharynx
9 146.9 Malignant neoplasm of oropharynx, unspecified site

This page was last updated on: 10/1/2014