H70

Non-billable

Mastoiditis and related conditions

H70 is the ICD-10-CM code for Mastoiditis and related conditions. It is a non-billable category code — use a more specific child code such as H70.0 for billing.

Status
Header (non-billable)
Chapter
H60-H95
Subcodes
5
Edition
FY2026

H60-H95 Diseases of the ear and mastoid process

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code H70?
H70 is the ICD-10-CM code for "Mastoiditis and related conditions". It falls under H60-H95 Diseases of the ear and mastoid process.
Is H70 a billable code?
No — H70 is a non-billable header code. Use a more specific child code (such as H70.0) for billing.
What are the subcodes of H70?
H70 has 5 more specific child codes, including H70.0, H70.1, H70.2.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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