Other disorders of middle ear and mastoid in diseases classified elsewhere (H75) ICD-10-CM
The H75 code range covers other disorders of middle ear and mastoid in diseases classified elsewhere with 11 ICD-10-CM diagnosis codes. 8 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Code First
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
- underlying disease
Codes in the H75 Range 11 codes · 8 billable
- H75 Other disorders of middle ear and mastoid in diseases classified elsewhereNon-billable
- H75.0 Mastoiditis in infectious and parasitic diseases classified elsewhereNon-billable
- H75.00 Mastoiditis in infectious and parasitic diseases classified elsewhere, unspecified ear
- H75.01 Mastoiditis in infectious and parasitic diseases classified elsewhere, right ear
- H75.02 Mastoiditis in infectious and parasitic diseases classified elsewhere, left ear
- H75.03 Mastoiditis in infectious and parasitic diseases classified elsewhere, bilateral
- H75.8 Other specified disorders of middle ear and mastoid in diseases classified elsewhereNon-billable
- H75.80 Other specified disorders of middle ear and mastoid in diseases classified elsewhere, unspecified ear
- H75.81 Other specified disorders of right middle ear and mastoid in diseases classified elsewhere
- H75.82 Other specified disorders of left middle ear and mastoid in diseases classified elsewhere
- H75.83 Other specified disorders of middle ear and mastoid in diseases classified elsewhere, bilateral
About the H75 Code Range
These codes describe middle ear and mastoid disorders in diseases classified elsewhere.
H75.0 identifies mastoiditis, a mastoid disorder, in infectious or parasitic diseases classified elsewhere. H75.8 identifies other specified middle ear and mastoid disorders in diseases classified elsewhere. Both branches distinguish an unspecified ear, the right ear, the left ear, and both ears.
Questions About This Page
How many billable codes are in the H75 range?
Of the 11 codes in this range, 8 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the H75 range classify?
The range classifies other disorders of middle ear and mastoid in diseases classified elsewhere. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
