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ICD-10-CM 2027 diagnosis code

H83.2X2Labyrinthine dysfunction, left ear

✓ Billable / specific

H83.2X2 is a valid, billable ICD-10-CM code for labyrinthine dysfunction, left 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 H83.2X2

H83.2X2 is the ICD-10-CM diagnosis code for labyrinthine dysfunction, left 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 H83.2X (labyrinthine dysfunction), H83.2X2 is specifically for labyrinthine dysfunction, left ear. Related codes cover right ear (H83.2X1), bilateral (H83.2X3) and unspecified ear (H83.2X9).

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 386.50 (labyrinthine dysfunction, unspecified), 386.51 (hyperactive labyrinth, unilateral), 386.53 (Hypoactive labyrinth, unilateral) and 2 more.

Notes that apply from higher levels

Instructions written at a parent level also apply to H83.2X2.

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 →
  • 386.50Labyrinthine dysfunction, unspecifiedapproximate
  • 386.51Hyperactive labyrinth, unilateralapproximate
  • 386.53Hypoactive labyrinth, unilateralapproximate
  • 386.55Loss of labyrinthine reactivity, unilateralapproximate
  • 386.58Other forms and combinations of labyrinthine dysfunctionapproximate

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 H83.2X2

Is H83.2X2 billable?

Yes. H83.2X2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can H83.2X2 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict H83.2X2 as a principal diagnosis.

Is H83.2X2 a CC or MCC?

No. H83.2X2 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does H83.2X2 group to?

H83.2X2 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 H83.2X2?

The CMS General Equivalence Mappings map H83.2X2 to ICD-9-CM 386.50, 386.51, 386.53, 386.55 and 1 more.