ICD-10-CM > S00-T88 > S00-S09 > S06 > S06.8 > S06.8A > S06.8AA S06.8AA Primary blast injury of brain, not elsewhere classified with loss of consciousness status unknown Non-Billable/Non-Specific Applicable To Primary blast injury of brain NOS Codes S06.8AAA..., initial encounterS06.8AAD..., subsequent encounterS06.8AAS..., sequela