ICD-10-CM > S00-T88 > S50-S59 > S53 > S53.3 S53.3 Traumatic rupture of ulnar collateral ligament Non-Billable/Non-Specific Type 1 Excludes sprain of ulnar collateral ligament (S53.44-) Codes S53.30Traumatic rupture of unspecified ulnar collateral ligamentS53.30XA..., initial encounterS53.30XD..., subsequent encounterS53.30XS..., sequelaS53.31Traumatic rupture of right ulnar collateral ligamentS53.31XA..., initial encounterS53.31XD..., subsequent encounterS53.31XS..., sequelaS53.32Traumatic rupture of left ulnar collateral ligamentS53.32XA..., initial encounterS53.32XD..., subsequent encounterS53.32XS..., sequela