2027 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 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

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 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 123. 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
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 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
  • Divergence weakness esophoria
  • 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
  • Esophoria
  • 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

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to H51.8: its own notes plus those printed at block H49-H52 and Chapter 7. A note printed at a category, block or chapter applies to every code under it.

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 Block H49-H52 Disorders of ocular muscles, binocular movement, accommodation and refraction applies to 150 codes
  • nystagmus and other irregular eye movements (H55)
From Chapter 7 (H00-H59) Diseases of the eye and adnexa applies to 2,677 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)
  • diabetes mellitus related eye conditions (E09.3-, E10.3-, E11.3-, E13.3-)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury (trauma) of eye and orbit (S05.-)
  • 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)
  • syphilis related eye disorders (A50.01, A50.3-, A51.43, A52.71)

Notes

General instructions on how these codes are used.

From Chapter 7 (H00-H59) Diseases of the eye and adnexa applies to 2,677 codes
  • Use an external cause code following the code for the eye condition, if applicable, to identify the cause of the eye condition

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

Index to Diseases and InjuriesGuidance

Clinical ClassificationClinical

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

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

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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About H51.8Overview

What is the ICD-10 code for other specified disorders of binocular movement?

The ICD-10-CM code for other specified disorders of binocular movement is H51.8 (sometimes written as H518). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

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, 2026 through September 30, 2027.

What MS-DRG does H51.8 group to?

When other specified disorders of binocular movement is the principal diagnosis on an inpatient stay, it groups to MS-DRG 123 (neurological Eye Disorders), which carries a relative weight of 0.8218. Higher weights mean higher Medicare reimbursement.

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.