ICD-10-CM Tabular Index · Chapter 8 · FY 2027 H80

Otosclerosis (H80) ICD-10-CM

The H80 code range covers otosclerosis with 26 ICD-10-CM diagnosis codes. 20 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.

✓ Built from the official CMS FY 2027 datasetEffective Oct 1, 2026 – Sep 30, 2027
26
Diagnosis Codes
20
Billable Codes
H80
Code Range
H80–H83
Parent Section

Includes

This note appears immediately under a three character code title to further define, or give examples of, the content of the category.

ICD-10-CM

Codes in the H80 Range 26 codes · 20 billable

26 of 26 shown
  • H80 OtosclerosisNon-billable
  • H80.0 Otosclerosis involving oval window, nonobliterativeNon-billable
  • H80.00 Otosclerosis involving oval window, nonobliterative, unspecified ear
  • H80.01 Otosclerosis involving oval window, nonobliterative, right ear
  • H80.02 Otosclerosis involving oval window, nonobliterative, left ear
  • H80.03 Otosclerosis involving oval window, nonobliterative, bilateral
  • H80.1 Otosclerosis involving oval window, obliterativeNon-billable
  • H80.10 Otosclerosis involving oval window, obliterative, unspecified ear
  • H80.11 Otosclerosis involving oval window, obliterative, right ear
  • H80.12 Otosclerosis involving oval window, obliterative, left ear
  • H80.13 Otosclerosis involving oval window, obliterative, bilateral
  • H80.2 Cochlear otosclerosisNon-billable
  • H80.20 Cochlear otosclerosis, unspecified ear
  • H80.21 Cochlear otosclerosis, right ear
  • H80.22 Cochlear otosclerosis, left ear
  • H80.23 Cochlear otosclerosis, bilateral
  • H80.8 Other otosclerosisNon-billable
  • H80.80 Other otosclerosis, unspecified ear
  • H80.81 Other otosclerosis, right ear
  • H80.82 Other otosclerosis, left ear
  • H80.83 Other otosclerosis, bilateral
  • H80.9 Unspecified otosclerosisNon-billable
  • H80.90 Unspecified otosclerosis, unspecified ear
  • H80.91 Unspecified otosclerosis, right ear
  • H80.92 Unspecified otosclerosis, left ear
  • H80.93 Unspecified otosclerosis, bilateral

Clinical Terms in This Code Range

Definitions from the National Library of Medicine for conditions coded in the H80 range.

Otosclerosis

Formation of spongy bone in the labyrinth capsule which can progress toward the STAPES (stapedial fixation) or anteriorly toward the COCHLEA leading to conductive, sensorineural, or mixed HEARING LOSS. Several genes are associated with familial otosclerosis with varied clinical signs.

About the H80 Code Range

Otosclerosis involves spongy bone forming in the inner ear’s bony covering and can lead to hearing loss.

H80.0 and H80.1 distinguish nonobliterative and obliterative involvement of the oval window. H80.2 identifies cochlear otosclerosis, while H80.8 and H80.9 identify other and unspecified forms. Each group then separates the right ear, left ear, both ears, and an unspecified ear.

Questions About This Page

How many billable codes are in the H80 range?

Of the 26 codes in this range, 20 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 H80 range classify?

The range classifies otosclerosis. 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.