H20.01 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
H20.011
Primary iridocyclitis, right eye
Billable
10
H20.012
Primary iridocyclitis, left eye
Billable
10
H20.013
Primary iridocyclitis, bilateral
Billable
10
H20.019
Primary iridocyclitis, unspecified eye
Billable