ICD-10 diagnosis code

H70 Mastoiditis and related conditions

H70 is the ICD-10 code for Mastoiditis and related conditions. It is a three-character category divided into 5 subcodes; use the subcode whenever the record supports that level of detail. 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: Category (3 characters)
Chapter: VIII · H60–H95
Classification: WHO ICD-10, 2019 version

Subcodes of H70

H70 in national editions

Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.

SwedenICD-10-SE

H70Inflammation i mastoidutskottet och besläktade sjukdomar

DenmarkICD-10-DK

DH70Mastoiditis og beslægtede sygdomme

FinlandICD-10-FI

H70Kartiolisäkkeen tulehdus ja muut samantapaiset sairaustilat

GermanyICD-10-GM

H70Mastoiditis und verwandte Zustände

FranceICD-10-FR

H70Mastoïdite et affections apparentées

NetherlandsICD-10-NL

H70mastoïditis en verwante aandoeningen

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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