ICD-10-CM > S00-T88 > S00-S09 > S06 > S06.2 > S06.2X > S06.2X0 S06.2X0 Diffuse traumatic brain injury without loss of consciousness Non-Billable/Non-Specific Codes S06.2X0A..., initial encounterS06.2X0D..., subsequent encounterS06.2X0S..., sequela