H51.2 is the ICD-10 code for Internuclear ophthalmoplegia. It is a four-character subcategory of H51 (Other disorders of binocular movement), the most specific level in the WHO edition. It belongs to the block H49–H52 (Disorders of ocular muscles, binocular movement, accommodation and refraction) in Chapter VII, Diseases of the eye and adnexa.
- Code type
- Subcategory (4 characters)
- Chapter
- VII · H00–H59
- Classification
- WHO ICD-10, 2019 version
H51.2 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
H51.2Internukleær oftalmoplegi
DH512Internukleær oftalmoplegi
H51.2Internukleaarinen silmälihashalvaus
H51.2Internukleäre Ophthalmoplegie
H51.2Ophtalmoplégie internucléaire
H51.2internucleaire oftalmoplegie
Listed through more specific codes:
- H51.20Internuclear ophthalmoplegia, unspecified eye
- H51.21Internuclear ophthalmoplegia, right eye
- H51.22Internuclear ophthalmoplegia, left eye
- H51.23Internuclear ophthalmoplegia, bilateral
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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