2020 ICD-10-CM Diagnosis Code G23.1

Progressive supranuclear ophthalmoplegia [Steele-Richardson-Olszewski]

    2016 2017 2018 2019 2020 Billable/Specific Code
  • G23.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Progressive supranuclear ophthalmoplegia
  • The 2020 edition of ICD-10-CM G23.1 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of G23.1 - other international versions of ICD-10 G23.1 may differ.
Applicable To
  • Progressive supranuclear palsy
The following code(s) above G23.1 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to G23.1:
  • G00-G99
    2020 ICD-10-CM Range G00-G99

    Diseases of the nervous system

    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    Diseases of the nervous system
  • G23
    ICD-10-CM Diagnosis Code G23

    Other degenerative diseases of basal ganglia

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • multi-system degeneration of the autonomic nervous system (G90.3)
    Other degenerative diseases of basal ganglia
Approximate Synonyms
  • Progressive supranuclear ophthalmoplegia
  • Progressive supranuclear palsy
Clinical Information
  • A degenerative disease of the central nervous system characterized by balance difficulties; ocular motility disorders (supranuclear ophthalmoplegia); dysarthria; swallowing difficulties; and axial dystonia. Onset is usually in the fifth decade and disease progression occurs over several years. Pathologic findings include neurofibrillary degeneration and neuronal loss in the dorsal mesencephalon; subthalamic nucleus; red nucleus; pallidum; dentate nucleus; and vestibular nuclei. (from Adams et al., Principles of Neurology, 6th ed, pp1076-7)
  • A progressive neurological disorder characterized by ophthalmoplegia, dystonia, memory impairment, personality disorders, and dementia. Etiology is unknown.
  • A rare neurodegenerative disorder characterized by gait and balance difficulties and loss of coordination of eye movements.
  • Progressive supranuclear palsy (psp) is a rare brain disease. It affects brain cells that control the movement of your eyes. This leads to serious and permanent problems with balance and the way you walk. It usually occurs in middle-aged or elderly people. Symptoms are very different in each person, but may include personality changes, speech, vision and swallowing problems. Doctors sometimes confuse psp with parkinson's disease or alzheimer's disease. Psp has no cure and no effective treatments. Walking aids, special glasses and certain medicines might help somewhat. Although the disease gets worse over time, it isn't fatal on its own. However, psp is dangerous because it increases your risk of pneumonia and choking from swallowing problems and injuries from falling.
  • Spastic weakness of the muscles innervated by the cranial nerves, i.e., the muscle of the face, pharynx, and tongue, due to bilateral lesions of the corticospinal tract.
ICD-10-CM G23.1 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 056 Degenerative nervous system disorders with mcc
  • 057 Degenerative nervous system disorders without mcc

Convert G23.1 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
Code annotations containing back-references to G23.1:
  • Type 2 Excludes: H49
    ICD-10-CM Diagnosis Code H49

    Paralytic strabismus

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • internal ophthalmoplegia (H52.51-)
    • internuclear ophthalmoplegia (H51.2-)
    • progressive supranuclear ophthalmoplegia (G23.1)

Diagnosis Index entries containing back-references to G23.1:
  • Ophthalmoplegia - see also Strabismus, paralytic
    • supranuclear, progressive G23.1
  • Palsy G83.9
    - see also Paralysis
    ICD-10-CM Diagnosis Code G83.9

    Paralytic syndrome, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code
    • bulbar (progressive) (chronic) G12.22
      ICD-10-CM Diagnosis Code G12.22

      Progressive bulbar palsy

        2016 2017 2018 2019 2020 Billable/Specific Code
      • supranuclear G23.1 (progressive)
    • progressive supranuclear G23.1
  • Paralysis, paralytic (complete) (incomplete) G83.9
    ICD-10-CM Diagnosis Code G83.9

    Paralytic syndrome, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code
    • progressive (atrophic) (bulbar) (spinal) G12.22
      ICD-10-CM Diagnosis Code G12.22

      Progressive bulbar palsy

        2016 2017 2018 2019 2020 Billable/Specific Code
      • supranuclear G23.1
    • supranuclear G23.1 (progressive)
  • Steele-Richardson-Olszewski disease or syndrome G23.1
  • Willige-Hunt disease or syndrome G23.1

ICD-10-CM Codes Adjacent To G23.1
G21.1 Other drug-induced secondary parkinsonism
G21.11 Neuroleptic induced parkinsonism
G21.19 Other drug induced secondary parkinsonism
G21.2 Secondary parkinsonism due to other external agents
G21.3 Postencephalitic parkinsonism
G21.4 Vascular parkinsonism
G21.8 Other secondary parkinsonism
G21.9 Secondary parkinsonism, unspecified
G23 Other degenerative diseases of basal ganglia
G23.0 Hallervorden-Spatz disease
G23.1 Progressive supranuclear ophthalmoplegia [Steele-Richardson-Olszewski]
G23.2 Striatonigral degeneration
G23.8 Other specified degenerative diseases of basal ganglia
G23.9 Degenerative disease of basal ganglia, unspecified
G24 Dystonia
G24.0 Drug induced dystonia
G24.01 Drug induced subacute dyskinesia
G24.02 Drug induced acute dystonia
G24.09 Other drug induced dystonia
G24.1 Genetic torsion dystonia
G24.2 Idiopathic nonfamilial dystonia

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.