H70
⚠ Non-billable (Header)Mastoiditis and related conditions
Diseases of the ear and mastoid process (H60-H95)
⚠️ This is a category header code — not billable. Use a more specific child code below.
Child Codes (5)
Clinical Description
ICD-10-CM code H70 represents mastoiditis and related conditions. This code falls under the Diseases of the ear and mastoid process (H60-H95) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.
Frequently Asked Questions
What is ICD-10 code H70?
ICD-10-CM code H70 is "Mastoiditis and related conditions". It belongs to the category: Diseases of the ear and mastoid process (H60-H95).
Is H70 a billable ICD-10 code?
No, H70 is a non-billable header code. A more specific child code must be used for billing.
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Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)