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ICD-10-CM 2027 diagnosis code

H83.01Labyrinthitis, right ear

✓ Billable / specific

H83.01 is a valid, billable ICD-10-CM code for labyrinthitis, right ear. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About H83.01

H83.01 is the ICD-10-CM diagnosis code for labyrinthitis, right ear. It belongs to category H83 (other diseases of inner ear), block H80-H83 (diseases of inner ear) and chapter 8 (diseases of the ear and mastoid process). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within H83.0 (labyrinthitis), H83.01 is specifically for labyrinthitis, right ear. Related codes cover left ear (H83.02), bilateral (H83.03) and unspecified ear (H83.09).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 149 (Dysequilibrium, relative weight 0.7527), in MDC 03 (Diseases and Disorders of the Ear, Nose, Mouth and Throat), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 386.30 (labyrinthitis, unspecified), 386.31 (serous labyrinthitis), 386.32 (Circumscribed labyrinthitis) and 3 more.

Notes that apply from higher levels

Instructions written at a parent level also apply to H83.01.

Broader instructions also apply from Chapter 8: Diseases of the ear and mastoid process.

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

MDC 03 · Diseases and Disorders of the Ear, Nose, Mouth and Throat

ICD-9-CM equivalent

Converter →
  • 386.30Labyrinthitis, unspecifiedapproximate
  • 386.31Serous labyrinthitisapproximate
  • 386.32Circumscribed labyrinthitisapproximate
  • 386.33Suppurative labyrinthitisapproximate
  • 386.34Toxic labyrinthitisapproximate
  • 386.35Viral labyrinthitisapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about H83.01

Is H83.01 billable?

Yes. H83.01 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can H83.01 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict H83.01 as a principal diagnosis.

Is H83.01 a CC or MCC?

No. H83.01 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does H83.01 group to?

H83.01 is used in the MS-DRG v44.0 logic for MS-DRG 149 (Dysequilibrium). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for H83.01?

The CMS General Equivalence Mappings map H83.01 to ICD-9-CM 386.30, 386.31, 386.32, 386.33 and 2 more.