H70.891
ICD-10-CMThis code signifies inflammation or infection of the mastoid bone and surrounding structures in the right ear, excluding acute, chronic, or unspecified mastoiditis. It encompasses various less common or atypical mastoid-related conditions affecting the right side.
Apply this code when documentation specifies a mastoiditis or related condition in the right ear that doesn't fit the descriptions for acute, chronic, or unspecified forms. Examples include mastoid osteomyelitis, Bezold's abscess, or other specific mastoid complications localized to the right ear. Ensure the physician's notes clearly indicate the laterality and the specific "other" nature of the condition.
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