| H50641 | Lateral rectus muscle entrapment, right eye |
| H50642 | Lateral rectus muscle entrapment, left eye |
| H50649 | Lateral rectus muscle entrapment, unspecified eye |
| H5065 | Medial rectus muscle entrapment |
| H50651 | Medial rectus muscle entrapment, right eye |
| H50652 | Medial rectus muscle entrapment, left eye |
| H50659 | Medial rectus muscle entrapment, unspecified eye |
| H5066 | Superior oblique muscle entrapment |
| H50661 | Superior oblique muscle entrapment, right eye |
| H50662 | Superior oblique muscle entrapment, left eye |
| H50669 | Superior oblique muscle entrapment, unspecified eye |
| H5067 | Superior rectus muscle entrapment |
| H50671 | Superior rectus muscle entrapment, right eye |
| H50672 | Superior rectus muscle entrapment, left eye |
| H50679 | Superior rectus muscle entrapment, unspecified eye |
| H5068 | Extraocular muscle entrapment, unspecified |
| H50681 | Extraocular muscle entrapment, unspecified, right eye |
| H50682 | Extraocular muscle entrapment, unspecified, left eye |
| H50689 | Extraocular muscle entrapment, unspecified, unspecified eye |
| H5069 | Other mechanical strabismus |
| H508 | Other specified strabismus |
| H5081 | Duane's syndrome |
| H50811 | Duane's syndrome, right eye |
| H50812 | Duane's syndrome, left eye |
| H5089 | Other specified strabismus |
| H509 | Unspecified strabismus |
| H51 | Other disorders of binocular movement |
| H510 | Palsy (spasm) of conjugate gaze |
| H511 | Convergence insufficiency and excess |
| H5111 | Convergence insufficiency |
| H5112 | Convergence excess |
| H512 | Internuclear ophthalmoplegia |
| H5120 | Internuclear ophthalmoplegia, unspecified eye |
| H5121 | Internuclear ophthalmoplegia, right eye |
| H5122 | Internuclear ophthalmoplegia, left eye |
| H5123 | Internuclear ophthalmoplegia, bilateral |
| H518 | Other specified disorders of binocular movement |
| H519 | Unspecified disorder of binocular movement |
| H52 | Disorders of refraction and accommodation |
| H520 | Hypermetropia |
| H5200 | Hypermetropia, unspecified eye |
| H5201 | Hypermetropia, right eye |
| H5202 | Hypermetropia, left eye |
| H5203 | Hypermetropia, bilateral |
| H521 | Myopia |
| H5210 | Myopia, unspecified eye |
| H5211 | Myopia, right eye |
| H5212 | Myopia, left eye |
| H5213 | Myopia, bilateral |
| H522 | Astigmatism |