H91.2Header code — not billable
Sudden idiopathic hearing loss
- Chapter
- 8. Diseases of the ear and mastoid process
- Category
- H91
- Effective date
- October 1, 2026
Related codes in category H91
H91Other and unspecified hearing lossH91.0Ototoxic hearing lossH91.01Ototoxic hearing loss, right earYesH91.02Ototoxic hearing loss, left earYesH91.03Ototoxic hearing loss, bilateralYesH91.09Ototoxic hearing loss, unspecified earYesH91.1PresbycusisH91.10Presbycusis, unspecified earYesH91.11Presbycusis, right earYesH91.12Presbycusis, left earYesH91.13Presbycusis, bilateralYesH91.20Sudden idiopathic hearing loss, unspecified earYes
Frequently asked questions
What is ICD-10 code H91.2?
H91.2 is an ICD-10-CM diagnosis code for Sudden idiopathic hearing loss.
Is H91.2 a billable code?
No. H91.2 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is H91.2 in?
H91.2 falls under Chapter 8: Diseases of the ear and mastoid process.
When did H91.2 become effective?
H91.2 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to H91.2?
H91.2 belongs to category H91, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.