All ICD10 Codes

DRG 149

Medical DRG

Dysequilibrium

TypeMedicalMDC03Dx Codes51

What is MS-DRG 149?

MS-DRG 149 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 03 (MDC 03). It maps to 51 ICD-10-CM diagnosis codes. For FY 2026 it carries a relative weight of 0.7516 with a geometric mean length of stay of 1.9 days and an arithmetic mean of 2.4 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.

Classification
Medical DRG
Diagnosis-driven grouping
MDC
Major Diagnostic Category 03
Linked Codes
51 diagnosis
Billable Dx
100%
51 of 51 shown

FY 2026 Payment Data

Official values from Table 5 of the FY 2026 IPPS Final Rule (CMS).

Relative Weight
0.7516
Payment multiplier vs. average case (1.0)
Geometric Mean LOS
1.9 days
Used for transfer payment calculations
Arithmetic Mean LOS
2.4 days
Average length of stay
Post-Acute Transfer
No
Not subject to the transfer policy

Linked ICD-10-CM Diagnosis Mappings

  • H81.01

    Meniere's disease, right ear

    BillableChapter 8
  • H81.02

    Meniere's disease, left ear

    BillableChapter 8
  • H81.03

    Meniere's disease, bilateral

    BillableChapter 8
  • H81.09

    Meniere's disease, unspecified ear

    BillableChapter 8
  • H81.10

    Benign paroxysmal vertigo, unspecified ear

    BillableChapter 8
  • H81.11

    Benign paroxysmal vertigo, right ear

    BillableChapter 8
  • H81.12

    Benign paroxysmal vertigo, left ear

    BillableChapter 8
  • H81.13

    Benign paroxysmal vertigo, bilateral

    BillableChapter 8
  • H81.20

    Vestibular neuronitis, unspecified ear

    BillableChapter 8
  • H81.21

    Vestibular neuronitis, right ear

    BillableChapter 8
  • H81.22

    Vestibular neuronitis, left ear

    BillableChapter 8
  • H81.23

    Vestibular neuronitis, bilateral

    BillableChapter 8
  • H81.311

    Aural vertigo, right ear

    BillableChapter 8
  • H81.312

    Aural vertigo, left ear

    BillableChapter 8
  • H81.313

    Aural vertigo, bilateral

    BillableChapter 8
  • H81.319

    Aural vertigo, unspecified ear

    BillableChapter 8
  • H81.391

    Other peripheral vertigo, right ear

    BillableChapter 8
  • H81.392

    Other peripheral vertigo, left ear

    BillableChapter 8
  • H81.393

    Other peripheral vertigo, bilateral

    BillableChapter 8
  • H81.399

    Other peripheral vertigo, unspecified ear

    BillableChapter 8
  • H81.4

    Vertigo of central origin

    BillableChapter 8
  • H81.8X1

    Other disorders of vestibular function, right ear

    BillableChapter 8
  • H81.8X2

    Other disorders of vestibular function, left ear

    BillableChapter 8
  • H81.8X3

    Other disorders of vestibular function, bilateral

    BillableChapter 8
  • H81.8X9

    Other disorders of vestibular function, unspecified ear

    BillableChapter 8
  • H81.90

    Unspecified disorder of vestibular function, unspecified ear

    BillableChapter 8
  • H81.91

    Unspecified disorder of vestibular function, right ear

    BillableChapter 8
  • H81.92

    Unspecified disorder of vestibular function, left ear

    BillableChapter 8
  • H81.93

    Unspecified disorder of vestibular function, bilateral

    BillableChapter 8
  • H82.1

    Vertiginous syndromes in diseases classified elsewhere, right ear

    BillableChapter 8
  • H82.2

    Vertiginous syndromes in diseases classified elsewhere, left ear

    BillableChapter 8
  • H82.3

    Vertiginous syndromes in diseases classified elsewhere, bilateral

    BillableChapter 8
  • H82.9

    Vertiginous syndromes in diseases classified elsewhere, unspecified ear

    BillableChapter 8
  • H83.01

    Labyrinthitis, right ear

    BillableChapter 8
  • H83.02

    Labyrinthitis, left ear

    BillableChapter 8
  • H83.03

    Labyrinthitis, bilateral

    BillableChapter 8
  • H83.09

    Labyrinthitis, unspecified ear

    BillableChapter 8
  • H83.2X1

    Labyrinthine dysfunction, right ear

    BillableChapter 8
  • H83.2X2

    Labyrinthine dysfunction, left ear

    BillableChapter 8
  • H83.2X3

    Labyrinthine dysfunction, bilateral

    BillableChapter 8
  • H83.2X9

    Labyrinthine dysfunction, unspecified ear

    BillableChapter 8
  • H83.8X1

    Other specified diseases of right inner ear

    BillableChapter 8
  • H83.8X2

    Other specified diseases of left inner ear

    BillableChapter 8
  • H83.8X3

    Other specified diseases of inner ear, bilateral

    BillableChapter 8
  • H83.8X9

    Other specified diseases of inner ear, unspecified ear

    BillableChapter 8
  • H83.90

    Unspecified disease of inner ear, unspecified ear

    BillableChapter 8
  • H83.91

    Unspecified disease of right inner ear

    BillableChapter 8
  • H83.92

    Unspecified disease of left inner ear

    BillableChapter 8
  • H83.93

    Unspecified disease of inner ear, bilateral

    BillableChapter 8
  • R42

    Dizziness and giddiness

    BillableChapter 18
  • T75.3XXA

    Motion sickness, initial encounter

    BillableChapter 19