C30.1

ICD-10Billable

Malignant neoplasm of middle ear

Official ICD-10-CM descriptor (FY2026)

Malignant neoplasm of middle ear

C30.1 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

  • Malignant neoplasm of antrum tympanicum
  • Malignant neoplasm of auditory tube
  • Malignant neoplasm of eustachian tube
  • Malignant neoplasm of inner ear
  • Malignant neoplasm of mastoid air cells
  • Malignant neoplasm of tympanic cavity

Excludes1

Not coded here. An Excludes1 code should never be reported at the same time as the code above it.

  • malignant neoplasm of auricular canal (external) (C43.2-,C44.2-)
  • malignant neoplasm of bone of ear (meatus) (C41.0)
  • malignant neoplasm of cartilage of ear (C49.0)
  • malignant melanoma of skin of (external) ear (C43.2-)
  • other and unspecified malignant neoplasm of skin of (external) ear (C44.2-)

Related codes in C30

Where this code sits

Parent code
C30

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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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