H91.2
Non-Billable
ChapterH60–H95
Ranksubcategory
Official Description
Sudden idiopathic hearing loss
Metadata & Insights
- •2026 ICD-10-CM Edition - Effective October 1, 2025.
- •Non-billable category (requires more specific sub-code).
- •Chapter 8: Diseases of the Ear and Mastoid Process (H60-H95).
Instructional Notes
Includes
- Sudden hearing loss NOS
General instructions are available for the parent sections:
Clinical Hierarchy
CH8Diseases of the ear and mastoid process (H60-H95)
H90-H94Other disorders of ear (H90-H94)
H91Other and unspecified hearing loss
H91.2Sudden idiopathic hearing loss
H91.20Sudden idiopathic hearing loss, unspecified ear
H91.21Sudden idiopathic hearing loss, right ear
H91.22Sudden idiopathic hearing loss, left ear
H91.23Sudden idiopathic hearing loss, bilateral
Applicable Ancestor Context
The following parent sections contain instructions or notes that apply to H91.2:
Alphabetic Index Mentions
These are Diagnosis Index lookup paths that route to H91.2. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.
1 raw paths
MS-DRG Classification
No direct MS-DRG triggers identified.
Cross Reference
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Find surgical and procedural codes related to Sudden idiopathic hearing loss.
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