H53.13 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
H53.131
Sudden visual loss, right eye
Billable
10
H53.132
Sudden visual loss, left eye
Billable
10
H53.133
Sudden visual loss, bilateral
Billable
10
H53.139
Sudden visual loss, unspecified eye
Billable