ICD-10-CM > S00-T88 > S20-S29 > S28 > S28.0 S28.0 Crushed chest Non-Billable/Non-Specific Use Additional code for all associated injuries Type 1 Excludes flail chest (S22.5) Codes S28.0XXA..., initial encounterS28.0XXD..., subsequent encounterS28.0XXS..., sequela