ICD10BillableValid for clinical use
ICD-10 Code H51.9: Unspecified disorder of binocular movement
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the eye and adnexa (H00-H59).
When is it used?
- May be used when a clinician documents unspecified disorder of binocular movement in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
Code hierarchy
chapter
7Diseases of the eye and adnexa (H00-H59)
block
H49-H52Disorders of ocular muscles, binocular movement, accommodation and refraction
category
H51Other disorders of binocular movement
currentH51
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
Ophthalmologist
Related codes
Sibling codes
Coverage-related procedures and services
HCPCS G0255high
CURRENT PERCEPTION THRESHOLD/SENSORY NERVE CONDUCTION TEST, (SNCT) PER LIMB, ANY NERVE
Source: CMS coverage guidance
CPT 95873high
ELECTRICAL STIMULATION FOR GUIDANCE IN CONJUNCTION WITH CHEMODENERVATION (LIST SEPARATELY IN ADDITION TO CODE FOR PRIMARY PROCEDURE)
Source: CMS coverage guidance
CPT 95905high
MOTOR AND/OR SENSORY NERVE CONDUCTION, USING PRECONFIGURED ELECTRODE ARRAY(S), AMPLITUDE AND LATENCY/VELOCITY STUDY, EACH LIMB, INCLUDES F-WAVE STUDY WHEN PERFORMED, WITH INTERPRETATION AND REPORT
Source: CMS coverage guidance
CPT 95874high
NEEDLE ELECTROMYOGRAPHY FOR GUIDANCE IN CONJUNCTION WITH CHEMODENERVATION (LIST SEPARATELY IN ADDITION TO CODE FOR PRIMARY PROCEDURE)
Source: CMS coverage guidance
CPT 51785high
NEEDLE ELECTROMYOGRAPHY STUDIES (EMG) OF ANAL OR URETHRAL SPHINCTER, ANY TECHNIQUE
Source: CMS coverage guidance
CPT 95872high
NEEDLE ELECTROMYOGRAPHY USING SINGLE FIBER ELECTRODE, WITH QUANTITATIVE MEASUREMENT OF JITTER, BLOCKING AND/OR FIBER DENSITY, ANY/ALL SITES OF EACH MUSCLE STUDIED
Source: CMS coverage guidance
Mapped diagnoses and classifications
SNOMED_CT 232118008high
Anomaly of vergence system
Source: SNOMED International ICD-10 map
SNOMED_CT 366081000high
Disjunctive ocular movements - finding
Source: SNOMED International ICD-10 map
SNOMED_CT 45030009high
Disorder of eye movements
Source: SNOMED International ICD-10 map
SNOMED_CT 127346000high
Neurologic disorder of eye movements
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
H51.9
Common synonyms
Unspecified disorder of binocular movement
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.