ICD-10 Code: H49.12 – Fourth [trochlear] nerve palsy, left eye

ICD-10 code H49.12 corresponds to Fourth [trochlear] nerve palsy, left eye. This code is classified under the chapter H49 Paralytic strabismus, which is part of the H49-H52: Disorders of ocular muscles, binocular movement, accommodation and refraction category.

The parent chapter is Diseases of the eye and adnexa.