ICD-10-CM > S00-T88 > S50-S59 > S53 > S53.1 > S53.12 > S53.122 S53.122 Posterior subluxation of left ulnohumeral joint Non-Billable/Non-Specific Codes S53.122A..., initial encounterS53.122D..., subsequent encounterS53.122S..., sequela