Other disorders of binocular movement (H51)
The ICD-10 code section H51 represents other disorders of binocular movement, which are conditions affecting how both eyes work together to move in coordination. These codes are used when diagnosing specific problems with eye movement such as gaze palsies, convergence issues, and internuclear ophthalmoplegia.
This section includes codes for varied binocular movement disorders. For example, H51.0 covers palsy of conjugate gaze, also known by many terms like dysconjugate gaze, horizontal or vertical gaze palsies, and Parinaud's syndrome. Codes H51.11 and H51.12 address convergence insufficiency and convergence excess, indicating difficulty focusing both eyes together, commonly referred to as convergence palsy or spasm. The H51.2 series specifies internuclear ophthalmoplegia, a disorder impairing coordinated eye movement due to nerve pathway damage, often called dissociated gaze palsy. Other specified and unspecified binocular movement disorders fall under codes like H51.8 and H51.9, which describe various abnormal eye movement patterns and anomalies of the vergence system that affect binocular vision.
Diseases of the eye and adnexa (H00–H59)
Disorders of ocular muscles, binocular movement, accommodation and refraction (H49-H52)
H51 Other disorders of binocular movement
- H51.0 Palsy (spasm) of conjugate gaze
H51.1 Convergence insufficiency and excess
- H51.11 Convergence insufficiency
- H51.12 Convergence excess
H51.2 Internuclear ophthalmoplegia
- H51.20 Internuclear ophthalmoplegia, unspecified eye
- H51.21 Internuclear ophthalmoplegia, right eye
- H51.22 Internuclear ophthalmoplegia, left eye
- H51.23 Internuclear ophthalmoplegia, bilateral
- H51.8 Other specified disorders of binocular movement
- H51.9 Unspecified disorder of binocular movement
Other disorders of binocular movement (H51)
Clinical Terms
The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.
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.
Synkinesis
An involuntary movement accompanying a volitional movement. It often refers to facial movements that accompany FACIAL PARALYSIS.
