Other disorders of middle ear and mastoid in diseases classified elsewhere
In Diseases of middle ear and mastoid (H65-H75), chapter 8: Diseases of the Ear and Mastoid Process
8 billable codes under H75: none are a CC or MCC; none map to an HCC.
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Instructional notes
Code first: code the underlying condition first, then this code
- underlying disease
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
There are no chapter-specific rules for Chapter 8 yet, so the general rules in Section I.B apply.
All codes under H75
H75 can't be used on a claim. Pick a billable code below; grey headings group them.
- H75.0Mastoiditis in infectious and parasitic diseases classified elsewhere
- H75.00Mastoiditis in infectious and parasitic diseases classified elsewhere, unspecified ear
- H75.01Mastoiditis in infectious and parasitic diseases classified elsewhere, right ear
- H75.02Mastoiditis in infectious and parasitic diseases classified elsewhere, left ear
- H75.03Mastoiditis in infectious and parasitic diseases classified elsewhere, bilateral
- H75.8Other specified disorders of middle ear and mastoid in diseases classified elsewhere
- H75.80Other specified disorders of middle ear and mastoid in diseases classified elsewhere, unspecified ear
- H75.81Other specified disorders of right middle ear and mastoid in diseases classified elsewhere
- H75.82Other specified disorders of left middle ear and mastoid in diseases classified elsewhere
- H75.83Other specified disorders of middle ear and mastoid in diseases classified elsewhere, bilateral
H75 MS-DRGs
As the principal diagnosis, all 8 billable codes under H75 group to MS-DRG 154, 155, or 156 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Ear Disorders
An ear disorder is any condition that changes or harms the shape or structure of your ear. This can include abnormal ear shapes you're born with, injuries that change your ear's shape, and a growth on or in the ear.
Read more about ear disorders on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.
