All ICD10 Codes

DRG 123

Medical DRG

Neurological Eye Disorders

TypeMedicalMDC02Dx Codes210

What is MS-DRG 123?

MS-DRG 123 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 02 (MDC 02). It maps to 210 ICD-10-CM diagnosis codes. For FY 2026 it carries a relative weight of 0.7986 with a geometric mean length of stay of 2.1 days and an arithmetic mean of 2.6 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.

Classification
Medical DRG
Diagnosis-driven grouping
MDC
Major Diagnostic Category 02
Linked Codes
210 diagnosis
Billable Dx
100%
210 of 210 shown

FY 2026 Payment Data

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

Relative Weight
0.7986
Payment multiplier vs. average case (1.0)
Geometric Mean LOS
2.1 days
Used for transfer payment calculations
Arithmetic Mean LOS
2.6 days
Average length of stay
Post-Acute Transfer
No
Not subject to the transfer policy

Linked ICD-10-CM Diagnosis Mappings

  • A39.82

    Meningococcal retrobulbar neuritis

    BillableChapter 1
  • G45.3

    Amaurosis fugax

    BillableChapter 6
  • H02.401

    Unspecified ptosis of right eyelid

    BillableChapter 7
  • H02.402

    Unspecified ptosis of left eyelid

    BillableChapter 7
  • H02.403

    Unspecified ptosis of bilateral eyelids

    BillableChapter 7
  • H02.409

    Unspecified ptosis of unspecified eyelid

    BillableChapter 7
  • H02.421

    Myogenic ptosis of right eyelid

    BillableChapter 7
  • H02.422

    Myogenic ptosis of left eyelid

    BillableChapter 7
  • H02.423

    Myogenic ptosis of bilateral eyelids

    BillableChapter 7
  • H02.429

    Myogenic ptosis of unspecified eyelid

    BillableChapter 7
  • H02.431

    Paralytic ptosis of right eyelid

    BillableChapter 7
  • H02.432

    Paralytic ptosis of left eyelid

    BillableChapter 7
  • H02.433

    Paralytic ptosis of bilateral eyelids

    BillableChapter 7
  • H02.439

    Paralytic ptosis unspecified eyelid

    BillableChapter 7
  • H02.59

    Other disorders affecting eyelid function

    BillableChapter 7
  • H05.211

    Displacement (lateral) of globe, right eye

    BillableChapter 7
  • H05.212

    Displacement (lateral) of globe, left eye

    BillableChapter 7
  • H05.213

    Displacement (lateral) of globe, bilateral

    BillableChapter 7
  • H05.219

    Displacement (lateral) of globe, unspecified eye

    BillableChapter 7
  • H05.251

    Intermittent exophthalmos, right eye

    BillableChapter 7
  • H05.252

    Intermittent exophthalmos, left eye

    BillableChapter 7
  • H05.253

    Intermittent exophthalmos, bilateral

    BillableChapter 7
  • H05.259

    Intermittent exophthalmos, unspecified eye

    BillableChapter 7
  • H05.261

    Pulsating exophthalmos, right eye

    BillableChapter 7
  • H05.262

    Pulsating exophthalmos, left eye

    BillableChapter 7
  • H05.263

    Pulsating exophthalmos, bilateral

    BillableChapter 7
  • H05.269

    Pulsating exophthalmos, unspecified eye

    BillableChapter 7
  • H05.821

    Myopathy of extraocular muscles, right orbit

    BillableChapter 7
  • H05.822

    Myopathy of extraocular muscles, left orbit

    BillableChapter 7
  • H05.823

    Myopathy of extraocular muscles, bilateral

    BillableChapter 7
  • H05.829

    Myopathy of extraocular muscles, unspecified orbit

    BillableChapter 7
  • H34.00

    Transient retinal artery occlusion, unspecified eye

    BillableChapter 7
  • H34.01

    Transient retinal artery occlusion, right eye

    BillableChapter 7
  • H34.02

    Transient retinal artery occlusion, left eye

    BillableChapter 7
  • H34.03

    Transient retinal artery occlusion, bilateral

    BillableChapter 7
  • H34.211

    Partial retinal artery occlusion, right eye

    BillableChapter 7
  • H34.212

    Partial retinal artery occlusion, left eye

    BillableChapter 7
  • H34.213

    Partial retinal artery occlusion, bilateral

    BillableChapter 7
  • H34.219

    Partial retinal artery occlusion, unspecified eye

    BillableChapter 7
  • H34.8110

    Central retinal vein occlusion, right eye, with macular edema

    BillableChapter 7
  • H34.8111

    Central retinal vein occlusion, right eye, with retinal neovascularization

    BillableChapter 7
  • H34.8112

    Central retinal vein occlusion, right eye, stable

    BillableChapter 7
  • H34.8120

    Central retinal vein occlusion, left eye, with macular edema

    BillableChapter 7
  • H34.8121

    Central retinal vein occlusion, left eye, with retinal neovascularization

    BillableChapter 7
  • H34.8122

    Central retinal vein occlusion, left eye, stable

    BillableChapter 7
  • H34.8130

    Central retinal vein occlusion, bilateral, with macular edema

    BillableChapter 7
  • H34.8131

    Central retinal vein occlusion, bilateral, with retinal neovascularization

    BillableChapter 7
  • H34.8132

    Central retinal vein occlusion, bilateral, stable

    BillableChapter 7
  • H34.8190

    Central retinal vein occlusion, unspecified eye, with macular edema

    BillableChapter 7
  • H34.8191

    Central retinal vein occlusion, unspecified eye, with retinal neovascularization

    BillableChapter 7
  • H34.8192

    Central retinal vein occlusion, unspecified eye, stable

    BillableChapter 7
  • H34.821

    Venous engorgement, right eye

    BillableChapter 7
  • H34.822

    Venous engorgement, left eye

    BillableChapter 7
  • H34.823

    Venous engorgement, bilateral

    BillableChapter 7
  • H34.829

    Venous engorgement, unspecified eye

    BillableChapter 7
  • H34.8310

    Tributary (branch) retinal vein occlusion, right eye, with macular edema

    BillableChapter 7
  • H34.8311

    Tributary (branch) retinal vein occlusion, right eye, with retinal neovascularization

    BillableChapter 7
  • H34.8312

    Tributary (branch) retinal vein occlusion, right eye, stable

    BillableChapter 7
  • H34.8320

    Tributary (branch) retinal vein occlusion, left eye, with macular edema

    BillableChapter 7
  • H34.8321

    Tributary (branch) retinal vein occlusion, left eye, with retinal neovascularization

    BillableChapter 7
  • H34.8322

    Tributary (branch) retinal vein occlusion, left eye, stable

    BillableChapter 7
  • H34.8330

    Tributary (branch) retinal vein occlusion, bilateral, with macular edema

    BillableChapter 7
  • H34.8331

    Tributary (branch) retinal vein occlusion, bilateral, with retinal neovascularization

    BillableChapter 7
  • H34.8332

    Tributary (branch) retinal vein occlusion, bilateral, stable

    BillableChapter 7
  • H34.8390

    Tributary (branch) retinal vein occlusion, unspecified eye, with macular edema

    BillableChapter 7
  • H34.8391

    Tributary (branch) retinal vein occlusion, unspecified eye, with retinal neovascularization

    BillableChapter 7
  • H34.8392

    Tributary (branch) retinal vein occlusion, unspecified eye, stable

    BillableChapter 7
  • H34.9

    Unspecified retinal vascular occlusion

    BillableChapter 7
  • H40.1210

    Low-tension glaucoma, right eye, stage unspecified

    BillableChapter 7
  • H40.1211

    Low-tension glaucoma, right eye, mild stage

    BillableChapter 7
  • H40.1212

    Low-tension glaucoma, right eye, moderate stage

    BillableChapter 7
  • H40.1213

    Low-tension glaucoma, right eye, severe stage

    BillableChapter 7
  • H40.1214

    Low-tension glaucoma, right eye, indeterminate stage

    BillableChapter 7
  • H40.1220

    Low-tension glaucoma, left eye, stage unspecified

    BillableChapter 7
  • H40.1221

    Low-tension glaucoma, left eye, mild stage

    BillableChapter 7
  • H40.1222

    Low-tension glaucoma, left eye, moderate stage

    BillableChapter 7
  • H40.1223

    Low-tension glaucoma, left eye, severe stage

    BillableChapter 7
  • H40.1224

    Low-tension glaucoma, left eye, indeterminate stage

    BillableChapter 7
  • H40.1230

    Low-tension glaucoma, bilateral, stage unspecified

    BillableChapter 7
  • H40.1231

    Low-tension glaucoma, bilateral, mild stage

    BillableChapter 7
  • H40.1232

    Low-tension glaucoma, bilateral, moderate stage

    BillableChapter 7
  • H40.1233

    Low-tension glaucoma, bilateral, severe stage

    BillableChapter 7
  • H40.1234

    Low-tension glaucoma, bilateral, indeterminate stage

    BillableChapter 7
  • H40.1290

    Low-tension glaucoma, unspecified eye, stage unspecified

    BillableChapter 7
  • H40.1291

    Low-tension glaucoma, unspecified eye, mild stage

    BillableChapter 7
  • H40.1292

    Low-tension glaucoma, unspecified eye, moderate stage

    BillableChapter 7
  • H40.1293

    Low-tension glaucoma, unspecified eye, severe stage

    BillableChapter 7
  • H40.1294

    Low-tension glaucoma, unspecified eye, indeterminate stage

    BillableChapter 7
  • H46.00

    Optic papillitis, unspecified eye

    BillableChapter 7
  • H46.01

    Optic papillitis, right eye

    BillableChapter 7
  • H46.02

    Optic papillitis, left eye

    BillableChapter 7
  • H46.03

    Optic papillitis, bilateral

    BillableChapter 7
  • H46.10

    Retrobulbar neuritis, unspecified eye

    BillableChapter 7
  • H46.11

    Retrobulbar neuritis, right eye

    BillableChapter 7
  • H46.12

    Retrobulbar neuritis, left eye

    BillableChapter 7
  • H46.13

    Retrobulbar neuritis, bilateral

    BillableChapter 7
  • H46.2

    Nutritional optic neuropathy

    BillableChapter 7
  • H46.3

    Toxic optic neuropathy

    BillableChapter 7
  • H46.8

    Other optic neuritis

    BillableChapter 7
  • H46.9

    Unspecified optic neuritis

    BillableChapter 7
  • H47.011

    Ischemic optic neuropathy, right eye

    BillableChapter 7
  • H47.012

    Ischemic optic neuropathy, left eye

    BillableChapter 7
  • H47.013

    Ischemic optic neuropathy, bilateral

    BillableChapter 7
  • H47.019

    Ischemic optic neuropathy, unspecified eye

    BillableChapter 7
  • H47.021

    Hemorrhage in optic nerve sheath, right eye

    BillableChapter 7
  • H47.022

    Hemorrhage in optic nerve sheath, left eye

    BillableChapter 7
  • H47.023

    Hemorrhage in optic nerve sheath, bilateral

    BillableChapter 7
  • H47.029

    Hemorrhage in optic nerve sheath, unspecified eye

    BillableChapter 7
  • H47.031

    Optic nerve hypoplasia, right eye

    BillableChapter 7
  • H47.032

    Optic nerve hypoplasia, left eye

    BillableChapter 7
  • H47.033

    Optic nerve hypoplasia, bilateral

    BillableChapter 7
  • H47.039

    Optic nerve hypoplasia, unspecified eye

    BillableChapter 7
  • H47.091

    Other disorders of optic nerve, not elsewhere classified, right eye

    BillableChapter 7
  • H47.092

    Other disorders of optic nerve, not elsewhere classified, left eye

    BillableChapter 7
  • H47.093

    Other disorders of optic nerve, not elsewhere classified, bilateral

    BillableChapter 7
  • H47.099

    Other disorders of optic nerve, not elsewhere classified, unspecified eye

    BillableChapter 7
  • H47.20

    Unspecified optic atrophy

    BillableChapter 7
  • H47.211

    Primary optic atrophy, right eye

    BillableChapter 7
  • H47.212

    Primary optic atrophy, left eye

    BillableChapter 7
  • H47.213

    Primary optic atrophy, bilateral

    BillableChapter 7
  • H47.219

    Primary optic atrophy, unspecified eye

    BillableChapter 7
  • H47.22

    Hereditary optic atrophy

    BillableChapter 7
  • H47.291

    Other optic atrophy, right eye

    BillableChapter 7
  • H47.292

    Other optic atrophy, left eye

    BillableChapter 7
  • H47.293

    Other optic atrophy, bilateral

    BillableChapter 7
  • H47.299

    Other optic atrophy, unspecified eye

    BillableChapter 7
  • H47.321

    Drusen of optic disc, right eye

    BillableChapter 7
  • H47.322

    Drusen of optic disc, left eye

    BillableChapter 7
  • H47.323

    Drusen of optic disc, bilateral

    BillableChapter 7
  • H47.329

    Drusen of optic disc, unspecified eye

    BillableChapter 7
  • H47.331

    Pseudopapilledema of optic disc, right eye

    BillableChapter 7
  • H47.332

    Pseudopapilledema of optic disc, left eye

    BillableChapter 7
  • H47.333

    Pseudopapilledema of optic disc, bilateral

    BillableChapter 7
  • H47.339

    Pseudopapilledema of optic disc, unspecified eye

    BillableChapter 7
  • H49.00

    Third [oculomotor] nerve palsy, unspecified eye

    BillableChapter 7
  • H49.01

    Third [oculomotor] nerve palsy, right eye

    BillableChapter 7
  • H49.02

    Third [oculomotor] nerve palsy, left eye

    BillableChapter 7
  • H49.03

    Third [oculomotor] nerve palsy, bilateral

    BillableChapter 7
  • H49.10

    Fourth [trochlear] nerve palsy, unspecified eye

    BillableChapter 7
  • H49.11

    Fourth [trochlear] nerve palsy, right eye

    BillableChapter 7
  • H49.12

    Fourth [trochlear] nerve palsy, left eye

    BillableChapter 7
  • H49.13

    Fourth [trochlear] nerve palsy, bilateral

    BillableChapter 7
  • H49.20

    Sixth [abducent] nerve palsy, unspecified eye

    BillableChapter 7
  • H49.21

    Sixth [abducent] nerve palsy, right eye

    BillableChapter 7
  • H49.22

    Sixth [abducent] nerve palsy, left eye

    BillableChapter 7
  • H49.23

    Sixth [abducent] nerve palsy, bilateral

    BillableChapter 7
  • H49.30

    Total (external) ophthalmoplegia, unspecified eye

    BillableChapter 7
  • H49.31

    Total (external) ophthalmoplegia, right eye

    BillableChapter 7
  • H49.32

    Total (external) ophthalmoplegia, left eye

    BillableChapter 7
  • H49.33

    Total (external) ophthalmoplegia, bilateral

    BillableChapter 7
  • H49.40

    Progressive external ophthalmoplegia, unspecified eye

    BillableChapter 7
  • H49.41

    Progressive external ophthalmoplegia, right eye

    BillableChapter 7
  • H49.42

    Progressive external ophthalmoplegia, left eye

    BillableChapter 7
  • H49.43

    Progressive external ophthalmoplegia, bilateral

    BillableChapter 7
  • H49.881

    Other paralytic strabismus, right eye

    BillableChapter 7
  • H49.882

    Other paralytic strabismus, left eye

    BillableChapter 7
  • H49.883

    Other paralytic strabismus, bilateral

    BillableChapter 7
  • H49.889

    Other paralytic strabismus, unspecified eye

    BillableChapter 7
  • H49.9

    Unspecified paralytic strabismus

    BillableChapter 7
  • H50.89

    Other specified strabismus

    BillableChapter 7
  • H51.8

    Other specified disorders of binocular movement

    BillableChapter 7
  • H52.511

    Internal ophthalmoplegia (complete) (total), right eye

    BillableChapter 7
  • H52.512

    Internal ophthalmoplegia (complete) (total), left eye

    BillableChapter 7
  • H52.513

    Internal ophthalmoplegia (complete) (total), bilateral

    BillableChapter 7
  • H52.519

    Internal ophthalmoplegia (complete) (total), unspecified eye

    BillableChapter 7
  • H53.121

    Transient visual loss, right eye

    BillableChapter 7
  • H53.122

    Transient visual loss, left eye

    BillableChapter 7
  • H53.123

    Transient visual loss, bilateral

    BillableChapter 7
  • H53.129

    Transient visual loss, unspecified eye

    BillableChapter 7
  • H53.131

    Sudden visual loss, right eye

    BillableChapter 7
  • H53.132

    Sudden visual loss, left eye

    BillableChapter 7
  • H53.133

    Sudden visual loss, bilateral

    BillableChapter 7
  • H53.139

    Sudden visual loss, unspecified eye

    BillableChapter 7
  • H53.2

    Diplopia

    BillableChapter 7
  • H53.40

    Unspecified visual field defects

    BillableChapter 7
  • H53.411

    Scotoma involving central area, right eye

    BillableChapter 7
  • H53.412

    Scotoma involving central area, left eye

    BillableChapter 7
  • H53.413

    Scotoma involving central area, bilateral

    BillableChapter 7
  • H53.419

    Scotoma involving central area, unspecified eye

    BillableChapter 7
  • H53.431

    Sector or arcuate defects, right eye

    BillableChapter 7
  • H53.432

    Sector or arcuate defects, left eye

    BillableChapter 7
  • H53.433

    Sector or arcuate defects, bilateral

    BillableChapter 7
  • H53.439

    Sector or arcuate defects, unspecified eye

    BillableChapter 7
  • H53.451

    Other localized visual field defect, right eye

    BillableChapter 7
  • H53.452

    Other localized visual field defect, left eye

    BillableChapter 7
  • H53.453

    Other localized visual field defect, bilateral

    BillableChapter 7
  • H53.459

    Other localized visual field defect, unspecified eye

    BillableChapter 7
  • H53.461

    Homonymous bilateral field defects, right side

    BillableChapter 7
  • H53.462

    Homonymous bilateral field defects, left side

    BillableChapter 7
  • H53.469

    Homonymous bilateral field defects, unspecified side

    BillableChapter 7
  • H53.47

    Heteronymous bilateral field defects

    BillableChapter 7
  • H53.481

    Generalized contraction of visual field, right eye

    BillableChapter 7
  • H53.482

    Generalized contraction of visual field, left eye

    BillableChapter 7
  • H53.483

    Generalized contraction of visual field, bilateral

    BillableChapter 7
  • H53.489

    Generalized contraction of visual field, unspecified eye

    BillableChapter 7
  • H53.52

    Acquired color vision deficiency

    BillableChapter 7
  • H55.00

    Unspecified nystagmus

    BillableChapter 7
  • H55.02

    Latent nystagmus

    BillableChapter 7
  • H55.04

    Dissociated nystagmus

    BillableChapter 7
  • H55.81

    Deficient saccadic eye movements

    BillableChapter 7
  • H57.00

    Unspecified anomaly of pupillary function

    BillableChapter 7
  • H57.02

    Anisocoria

    BillableChapter 7
  • H57.03

    Miosis

    BillableChapter 7
  • H57.04

    Mydriasis

    BillableChapter 7
  • H57.051

    Tonic pupil, right eye

    BillableChapter 7
  • H57.052

    Tonic pupil, left eye

    BillableChapter 7
  • H57.053

    Tonic pupil, bilateral

    BillableChapter 7
  • H57.059

    Tonic pupil, unspecified eye

    BillableChapter 7
  • H57.09

    Other anomalies of pupillary function

    BillableChapter 7
  • Z45.31

    Encounter for adjustment and management of implanted visual substitution device

    BillableChapter 21