2027 ICD-10-CM Diagnosis Code G24.5Blepharospasm

ICD-10-CM Codes›G00–G99›G20-G26›G24

ICD-10-CM G24.5
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

G24.5 is a billable ICD-10-CM diagnosis code for blepharospasm. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 124 through 125. Coders also document this condition as bilateral blepharospasm. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other nervous system disorders (often hereditary or degenerative).

Code Identity

ICD-10-CM Code
G24.5
Billable Status
Yes — Valid for Submission
Code Describes
Blepharospasm
Short Description
Blepharospasm
Same as the full description in the CMS dataset.
Parent Code
G24
Dystonia

Code Classification

ChapterG00–G99Diseases of the nervous system
SectionG20-G26Extrapyramidal and movement disorders
CategoryG24Dystonia
This CodeG24.5Blepharospasm

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Bilateral blepharospasm
  • Blepharospasm
  • Blepharospasm of left eyelid
  • Blepharospasm of right eyelid
  • Isolated blepharospasm
  • Reflex blepharospasm

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to G24.5: its own notes plus those printed at G24 and Chapter 6. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From G24 Dystonia applies to 10 codes
  • dyskinesia

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

  • drug induced blepharospasm (G24.01)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From G24 Dystonia applies to 10 codes
  • athetoid cerebral palsy (G80.3)
From Chapter 6 (G00-G99) Diseases of the nervous system applies to 700 codes
  • 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)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name G24.5, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming G24.5: they are not reported together with it, unless the two conditions are unrelated.

  • R25 Abnormal involuntary movements
    specific movement disorders (G20-G26) names G20-G26, which includes this code

Excludes2 2

These codes carry an Excludes2 note naming G24.5: its condition is not part of those codes, and both may be reported when the patient has both.

  • H02.5 Other disorders affecting eyelid function
    blepharospasm (G24.5)
  • F98.4 Stereotyped movement disorders
    movement disorders of organic origin (G20-G25) names G20-G25, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR NVS006
Other nervous system disorders (often hereditary or degenerative)
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Blepharospasm

    excessive winking; tonic or clonic spasm of the orbicularis oculi muscle.

Patient EducationClinical

Eyelid Disorders

Eyelid disorders include a variety of conditions that affect your eyelids. Your eyelids protect your eyes and help keep them healthy. When you blink, they spread tears across your eyes and help wash away dirt or dust. You also close your eyelids when something comes near your eyes to protect them from injury.

The full article covers:

  • What are eyelid disorders?
  • What causes eyelid disorders?
  • What are common eyelid disorders?
  • What are the symptoms of eyelid disorders?
  • How are eyelid disorders diagnosed?
  • How are eyelid disorders treated?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert G24.5 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
333.81 Blepharospasm
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About G24.5Overview

What is the ICD-10 code for blepharospasm?

The ICD-10-CM code for blepharospasm is G24.5 (sometimes written as G245). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is G24.5 (Dystonia) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report blepharospasm on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does G24.5 group to?

When blepharospasm is the principal diagnosis on an inpatient stay, it groups to MS-DRG 125, 124, with relative weights from 0.7699 to 1.2470 depending on complications. Higher weights mean higher Medicare reimbursement.

Can G24.5 be reported with G24.01?

Not as a rule. The Excludes1 note on G24.5 lists "drug induced blepharospasm (G24.01)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).

What is the ICD-9 equivalent of G24.5?

Under the General Equivalence Mappings, blepharospasm converts to ICD-9-CM 333.81 (blepharospasm). The mapping is a direct match.