ICD-10-CM > S00-T88 > S30-S39 > S34 > S34.1 > S34.10 > S34.104 S34.104 Unspecified injury to L4 level of lumbar spinal cord Non-Billable/Non-Specific Applicable To Unspecified injury to lumbar spinal cord level 4 Codes S34.104A..., initial encounterS34.104D..., subsequent encounterS34.104S..., sequela