ICD10
ICD-10 Code C30: Malignant neoplasm of nasal cavity and middle ear
Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026
What is this code?
ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Neoplasms (C00-D49).
When is it used?
- May be used when a clinician documents malignant neoplasm of nasal cavity and middle ear in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
- This entry may represent a broader category rather than the most specific billable code.
Code hierarchy
chapter
2Neoplasms (C00-D49)
block
C00-C96Malignant neoplasms
block
C00-C75Malignant neoplasms, stated or presumed to be primary (of specified sites), and certain specified histologies, except neuroendocrine, and of lymphoid, hematopoietic and related tissue
block
C30-C39Malignant neoplasms of respiratory and intrathoracic organs
currentC30-C39
Where you may see this code
You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.
Related specialists
OncologistGeneral PhysicianENT Specialist
Sibling codes
C31Malignant neoplasm of accessory sinusesC32Malignant neoplasm of larynxC33Malignant neoplasm of tracheabillableC34Malignant neoplasm of bronchus and lungC37Malignant neoplasm of thymusbillableC38Malignant neoplasm of heart, mediastinum and pleuraC39Malignant neoplasm of other and ill-defined sites in the respiratory system and intrathoracic organs
Coding guidelines
Compatibility
Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
C30
Replacement codes
C30.0 — Malignant neoplasm of nasal cavityC30.1 — Malignant neoplasm of middle ear
Common synonyms
Malignant neoplasm of nasal cavity and middle ear
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.