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H70.01

Non-billable

Subperiosteal abscess of mastoid

H70.01 is the ICD-10-CM code for Subperiosteal abscess of mastoid. It is a non-billable category code — use a more specific child code such as H70.011 for billing.

Status
Header (non-billable)
Chapter
H60-H95
Parent
H70.0
Subcodes
4
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 H70.01?
H70.01 is the ICD-10-CM code for "Subperiosteal abscess of mastoid". It falls under H60-H95 Diseases of the ear and mastoid process.
Is H70.01 a billable code?
No — H70.01 is a non-billable header code. Use a more specific child code (such as H70.011) for billing.
What are the subcodes of H70.01?
H70.01 has 4 more specific child codes, including H70.011, H70.012, H70.013.

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

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