ICD-10-CM > S00-T88 > S40-S49 > S43 > S43.0 > S43.02 > S43.023 S43.023 Posterior subluxation of unspecified humerus Non-Billable/Non-Specific Codes S43.023A..., initial encounterS43.023D..., subsequent encounterS43.023S..., sequela