H66.10
ICD-10-CMThis code represents a persistent, long-standing infection of the middle ear and eustachian tube, characterized by chronic inflammation and pus formation. The "tubotympanic" aspect indicates involvement of both the eustachian tube and the tympanic cavity, while "unspecified" denotes a lack of further detail regarding laterality or specific complications.
Use this code when documentation clearly indicates chronic suppurative otitis media affecting the tubotympanic region, but the provider has not specified whether it is unilateral or bilateral, or if any associated complications are present. This code is appropriate when the medical record lacks the specificity to assign a more detailed code from the H66.1 subcategory.
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