H52.20 is a "category code," which means it's non-billable. Billable codes require more specificity. Use the list below to navigate to codes that are more specific:
10
H52.201
Unspecified astigmatism, right eye
Billable
10
H52.202
Unspecified astigmatism, left eye
Billable
10
H52.203
Unspecified astigmatism, bilateral
Billable
10
H52.209
Unspecified astigmatism, unspecified eye
Billable