| Code | Description |
| H52.201 | Unspecified astigmatism, right eye |
| H52.202 | Unspecified astigmatism, left eye |
| H52.203 | Unspecified astigmatism, bilateral |
| H52.209 | Unspecified astigmatism, unspecified eye |
| H52.211 | Irregular astigmatism, right eye |
| H52.212 | Irregular astigmatism, left eye |
| H52.213 | Irregular astigmatism, bilateral |
| H52.219 | Irregular astigmatism, unspecified eye |
| H52.221 | Regular astigmatism, right eye |
| H52.222 | Regular astigmatism, left eye |
| H52.223 | Regular astigmatism, bilateral |
| H52.229 | Regular astigmatism, unspecified eye |