ICD-10-CM > S00-T88 > S30-S39 > S34 > S34.1 > S34.10 > S34.101 S34.101 Unspecified injury to L1 level of lumbar spinal cord Non-Billable/Non-Specific Applicable To Unspecified injury to lumbar spinal cord level 1 Codes S34.101A..., initial encounterS34.101D..., subsequent encounterS34.101S..., sequela