C30.1 – Malignant neoplasm of middle ear

ICD-10-CM 2027 diagnosis code · Malignant neoplasms of respiratory and intrathoracic organs

Billable code

ICD-10-CM code C30.1
Code
C30.1 (claims format: C301)
Description
Malignant neoplasm of middle ear
Billable
Yes – valid for HIPAA-covered transactions
Valid for
Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter
2. Neoplasms (C00-D49)
Block
C30-C39 Malignant neoplasms of respiratory and intrathoracic organs
Parent codes
C30

Notes for C30.1

Applicable to:
  • 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):
  • 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-)

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

Block C30-C39

Includes:
  • malignant neoplasm of middle ear
Excludes1 (not coded here):
  • mesothelioma (C45.-)

Related codes in C30

Frequently asked questions

What is ICD-10 code C30.1?

C30.1 is the ICD-10-CM code for malignant neoplasm of middle ear, in the block C30-C39 (Malignant neoplasms of respiratory and intrathoracic organs).

Is C30.1 a billable code?

Yes. C30.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does C30.1 belong to?

It belongs to category C30 – Malignant neoplasm of nasal cavity and middle ear.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.