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H70.0

Non-billable

Acute mastoiditis

H70.0 is the ICD-10-CM code for Acute mastoiditis. It is a non-billable category code — use a more specific child code such as H70.00 for billing.

Status
Header (non-billable)
Chapter
H60-H95
Parent
H70
Subcodes
3
Edition
FY2026

H60-H95 Diseases of the ear and mastoid process

Includes

  • •Abscess of mastoid
  • •Empyema of mastoid

Frequently asked questions

What is ICD-10 code H70.0?
H70.0 is the ICD-10-CM code for "Acute mastoiditis". It falls under H60-H95 Diseases of the ear and mastoid process.
Is H70.0 a billable code?
No — H70.0 is a non-billable header code. Use a more specific child code (such as H70.00) for billing.
What are the subcodes of H70.0?
H70.0 has 3 more specific child codes, including H70.00, H70.01, H70.09.

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

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