ICD-10-CM > S00-T88 > S00-S09 > S06 > S06.0 > S06.0X > S06.0X1 S06.0X1 Concussion with loss of consciousness of 30 minutes or less Non-Billable/Non-Specific Applicable To Concussion with brief loss of consciousness Codes S06.0X1A..., initial encounterS06.0X1D..., subsequent encounterS06.0X1S..., sequela