ICD-10-CM > R00-R99 > R10-R19 > R10 > R10.8 > R10.8A R10.8A Flank tenderness Non-Billable/Non-Specific Codes R10.8A1Right flank tendernessR10.8A2Left flank tendernessR10.8A3Suprapubic tendernessR10.8A9Flank tenderness, unspecified