ICD-10-CM > S00-T88 > S20-S29 > S27 > S27.0 S27.0 Traumatic pneumothorax Non-Billable/Non-Specific Type 1 Excludes spontaneous pneumothorax (J93.-) Codes S27.0XXA..., initial encounterS27.0XXD..., subsequent encounterS27.0XXS..., sequela