H70.0 is the ICD-10 code for Acute mastoiditis. It is a four-character subcategory of H70 (Mastoiditis and related conditions), the most specific level in the WHO edition. It belongs to the block H65–H75 (Diseases of middle ear and mastoid) in Chapter VIII, Diseases of the ear and mastoid process.
- Code type
- Subcategory (4 characters)
- Chapter
- VIII · H60–H95
- Classification
- WHO ICD-10, 2019 version
What H70.0 includes
Conditions and terms that are coded here.
- Abscess
- of mastoid
- Empyema
- of mastoid
H70.0 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
H70.0Akut mastoidit
H70.0Akutt mastoiditt
DH700Akut mastoiditis
H70.0Akuutti kartiolisäkkeen tulehdus
H70.0Akute Mastoiditis
H70.0Mastoïdite aigüe
H70.0acute mastoïditis
Listed through more specific codes:
- H70.001Acute mastoiditis without complications, right ear
- H70.002Acute mastoiditis without complications, left ear
- H70.003Acute mastoiditis without complications, bilateral
- H70.009Acute mastoiditis without complications, unspecified ear
- H70.011Subperiosteal abscess of mastoid, right ear
- H70.012Subperiosteal abscess of mastoid, left ear
- H70.013Subperiosteal abscess of mastoid, bilateral
- H70.019Subperiosteal abscess of mastoid, unspecified ear
- and 4 more national subcodes
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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