C30.1
Billable

Malignant neoplasm of middle ear

Billable / Specific Code

What is Malignant neoplasm of middle ear?

ICD-10-CM C30.1 is the diagnosis code for Malignant neoplasm of middle ear. This code falls under the section "Malignant neoplasms of respiratory and intrathoracic organs" within Chapter 2 — Neoplasms (C00-D49). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

💡 Inclusions
⛔ Excludes1

Coding Guidelines for C30.1

✅ This Code Includes

  • 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

⛔ Type 1 Excludes (Never code together)

The following conditions should never be coded at the same time as C30.1. They are mutually exclusive:

  • 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-)

ICD-10-CM Code Hierarchy

Understanding where C30.1 sits in the ICD-10-CM classification helps ensure proper coding:

Related Codes

Frequently Asked Questions

Is C30.1 a billable ICD-10-CM code?

Yes, C30.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

What does C30.1 mean?

C30.1 is the ICD-10-CM diagnosis code for "Malignant neoplasm of middle ear". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What is the parent code of C30.1?

The parent code of C30.1 is C30 ("Malignant neoplasm of nasal cavity and middle ear"). C30.1 provides a more specific classification within this category.

What section is C30.1 in?

C30.1 is located in Section C30-C39 — "Malignant neoplasms of respiratory and intrathoracic organs" within Chapter 2 of the ICD-10-CM Tabular List.

When should I use C30.1?

Use C30.1 when the patients documented diagnosis matches "Malignant neoplasm of middle ear" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Malignant neoplasm of middle ear?

The ICD-10-CM code for Malignant neoplasm of middle ear is C30.1.

Can C30.1 be used for primary diagnosis?

Yes, C30.1 can be used as a primary diagnosis code since it is billable and specific.

What chapter is C30.1 in?

C30.1 is in Chapter 2 of the ICD-10-CM Tabular List.

What conditions are excluded from C30.1?

Type 1 Excludes for C30.1 include: 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) and more.

Is C30.1 valid for 2026?

Yes, C30.1 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousC30.0Malignant neoplasm of nasal cavityNext →C31Malignant neoplasm of accessory sinuses
Code Details
C30.1
Malignant neoplasm of middle ear
Billable / Specific Code
2 — Neoplasms (C00-D49)
C30-C39 — Malignant neoplasms of respiratory and intrathoracic organs
2026 ICD-10-CM