L55 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
L55.0
Sunburn of first degree
Billable
10
L55.1
Sunburn of second degree
Billable
10
L55.2
Sunburn of third degree
Billable
10
L55.9
Sunburn, unspecified
Billable