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C09.1 MALIG NEOPLASM OF TONSILLAR PILLAR (ANTERIOR) (POSTERIOR)

Code Information

Diagnosis Code: C09.1

Short Description: Malig neoplasm of tonsillar pillar (anterior) (posterior)

Long Description: Malignant neoplasm of tonsillar pillar (anterior) (posterior)

Code Classification:

  • Neoplasms (C00–D48)
    • Malignant neoplasms of lip, oral cavity and pharynx (C00-C14)
      • Malignant neoplasm of tonsil (C09)
        • C09.1 Malig neoplasm of tonsillar pillar (anterior) (posterior)

Code Version: 2017 ICD-10-CM

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
C09.1 Right Arrow 146.2 Mal neo tonsil pillars
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 C09.0 Malignant neoplasm of tonsillar fossa
3 C09.8 Malignant neoplasm of overlapping sites of tonsil
4 C09.9 Malignant neoplasm of tonsil, unspecified


This page was last updated on: 1/1/2018