C90.3 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
C90.30
Solitary plasmacytoma not having achieved remission
Billable
10
C90.31
Solitary plasmacytoma in remission
Billable
10
C90.32
Solitary plasmacytoma in relapse
Billable