2026 ICD-10-CM Diagnosis Code H51.8Other specified disorders of binocular movement

ICD-10-CM Codes›H00–H59›H49-H52›H51

ICD-10-CM H51.8
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

H51.8 is a billable ICD-10-CM diagnosis code for other specified disorders of binocular movement. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Neuro-ophthalmology.

Code Identity

ICD-10-CM Code
H51.8
Billable Status
Yes — Valid for Submission
Code Describes
Other specified disorders of binocular movement
Short Description
Other specified disorders of binocular movement
Same as the full description in the CMS dataset.
Parent Code
H51
Other disorders of binocular movement

Code Classification

ChapterH00–H59Diseases of the eye and adnexa
SectionH49-H52Disorders of ocular muscles, binocular movement, accommodation and refraction
CategoryH51Other disorders of binocular movement
This CodeH51.8Other specified disorders of binocular movement

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • A pattern vergence
  • Ablepharon
  • Abnormal lateral conjugate gaze
  • Abnormal ocular motility
  • Abnormal vertical conjugate gaze
  • Abnormal visual fixation
  • Acquired esotropia
  • Acquired oculomotor apraxia
  • Anomaly of divergence
  • Anomaly of vergence system
  • Associated movements on eye movement - finding
  • Autosomal recessive cerebellar ataxia with oculomotor apraxia type 1
  • Autosomal recessive cerebellar ataxia with oculomotor apraxia type 2
  • Autosomal recessive cerebellar ataxia, pyramidal signs, nystagmus, oculomotor apraxia syndrome
  • Balint syndrome
  • Becomes binocular
  • Benign paroxysmal tonic upgaze of childhood with ataxia
  • Body movements associated with eye movement
  • Cerebellar ataxia with oculomotor apraxia type 4
  • Cerebellar ataxia, intellectual disability, oculomotor apraxia, cerebellar cysts syndrome
  • Congenital absence of lacrimal drainage structure
  • Conjugate gaze
  • Disjunctive ocular movements - finding
  • Disorder of zinc metabolism
  • Dissociated deviation
  • Dissociated gaze palsy
  • Divergence excess
  • Divergence insufficiency
  • Divergence paralysis
  • Doll's head reflex absent
  • Doll's head reflex equivocal
  • Double elevator palsy
  • Downdrift of eyes
  • Downward conjugate gaze
  • Downward gaze deviation
  • Drift on horizontal movement of eyes
  • Dysconjugate gaze
  • Dysgenesis of lacrimal punctum
  • Esotropia with dissociated vertical deviation
  • Eye movement with both eyes open - finding
  • Finding of ocular balance
  • Frontal type acquired oculomotor apraxia
  • Fronto-parietal type acquired oculomotor apraxia
  • Horizontal doll's head reflex absent
  • Horizontal doll's head reflex equivocal
  • Horizontal doll's head reflex finding
  • Infantile esotropia
  • Intermittent downward gaze deviation
  • Inverted Y pattern vergence
  • Left ocular fixation preference
  • Lower lacrimal punctum finding
  • Ocular fixation - finding
  • Ocular fixation preference - finding
  • Ocular head posture - finding
  • Ocular head posture abnormal
  • Ocular motor apraxia Cogan type
  • Ocular neuromyotonia
  • Ocular posture chin down
  • Ocular posture chin up
  • Ocular posture face turn
  • Ocular posture head nod
  • Ocular posture head thrust
  • Ocular posture head tilt
  • Ocular tilt reaction
  • Oculogyric crisis
  • Oculomotor apraxia
  • Oculomotor nerve synkinesis
  • Optic ataxia
  • Optical axis alignment - finding
  • Optical axis deviation - finding
  • Parietal type acquired oculomotor apraxia
  • Partial ablepharon
  • Postbasic stare
  • Pseudoophthalmoplegia
  • Psychomotor regression, oculomotor apraxia, movement disorder, nephropathy syndrome
  • Ptosis, upper ocular movement limitation, absence of lacrimal punctum syndrome
  • Right ocular fixation preference
  • Rolling of eyes
  • Skew deviation
  • Sounds associated with eye movement - finding
  • Staring
  • Superior oblique click on eye movement
  • Sustained downward gaze deviation
  • Synergistic divergence
  • Synkinesis
  • Third cranial nerve finding
  • Torsion deviation of eye
  • Unstable visual fixation
  • Updrift of eyes
  • Upward conjugate gaze
  • Vergence on vertical movement of eyes
  • Vertical conjugate gaze
  • Vertical dissociated gaze palsy
  • Vertical doll's head reflex absent
  • Vertical doll's head reflex equivocal
  • Vertical doll's head reflex finding
  • Visual gaze preference
  • V-pattern vergence
  • X pattern vergence
  • Y pattern vergence

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Apraxia(classic) (ideational) (ideokinetic) (ideomotor) (motor) (verbal)
      • oculomotor, congenital
    • Cogan's syndrome
      • oculomotor apraxia
    • Crisis
      • oculogyric
    • Deviation(in)
      • eye, skew
    • Disorder(of)
      • binocular
        • movement
          • specified type NEC
    • Disturbance(s)
      • oculogyric
    • Esophoria
      • divergence, insufficiency
    • Excess, excessive, excessively
      • divergence
    • Exophoria
      • divergence, excess
    • Insufficiency, insufficient
      • divergence
    • Oculogyric crisis or disturbance
    • Paralysis, paralytic(complete) (incomplete)
      • divergence (nuclear)
    • Spasm(s), spastic, spasticity
      • conjugate
    • Spasm(s), spastic, spasticity
      • inferior oblique, eye
    • Spasm(s), spastic, spasticity
      • oculogyric
    • Syndrome
      • spasmodic
        • upward movement, eyes
    • Syndrome
      • upward gaze

Clinical ClassificationClinical

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

CCSR EYE006
Neuro-ophthalmology
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Synkinesis

    an involuntary movement accompanying a volitional movement. it often refers to facial movements that accompany facial paralysis.

  • Facial Paralysis

    severe or complete loss of facial muscle motor function. this condition may result from central or peripheral lesions. damage to cns motor pathways from the cerebral cortex to the facial nuclei in the pons leads to facial weakness that generally spares the forehead muscles. facial nerve diseases generally results in generalized hemifacial weakness. neuromuscular junction diseases and muscular diseases may also cause facial paralysis or paresis.

Patient EducationClinical

Eye Movement Disorders

When you look at an object, you're using several muscles to move both eyes to focus on it. If you have a problem with the muscles, the eyes don't work properly.

Read the full article at MedlinePlus

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

Convert H51.8 to ICD-9-CMHistory

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

ICD-9-CM
378.85 Anomalies of divergence
Approximate The match is approximate rather than exact.
ICD-9-CM
378.87 Skew deviation, eye
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About H51.8Overview

Is H51.8 (Other disorders of binocular movement) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other specified disorders of binocular movement on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of H51.8?

Under the General Equivalence Mappings, other specified disorders of binocular movement converts to ICD-9-CM 378.85 (anomalies of divergence) and 378.87 (skew deviation, eye). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.