ICD-10-CM > S00-T88 > S50-S59 > S53 > S53.4 > S53.44 S53.44 Ulnar collateral ligament sprain Non-Billable/Non-Specific Codes S53.441Ulnar collateral ligament sprain of right elbowS53.441A..., initial encounterS53.441D..., subsequent encounterS53.441S..., sequelaS53.442Ulnar collateral ligament sprain of left elbowS53.442A..., initial encounterS53.442D..., subsequent encounterS53.442S..., sequelaS53.449Ulnar collateral ligament sprain of unspecified elbowS53.449A..., initial encounterS53.449D..., subsequent encounterS53.449S..., sequela