C09.9

ICD-10Billable

Malignant neoplasm of tonsil, unspecified

Official ICD-10-CM descriptor (FY2026)

Malignant neoplasm of tonsil, unspecified

C09.9 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

  • Malignant neoplasm of tonsil NOS
  • Malignant neoplasm of faucial tonsils
  • Malignant neoplasm of palatine tonsils

Related codes in C09

Where this code sits

Parent code
C09

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.

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