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