ICD-10-CM > S00-T88 > S30-S39 > S39 > S39.0 > S39.00 > S39.002 S39.002 Unspecified injury of muscle, fascia and tendon of lower back Non-Billable/Non-Specific Codes S39.002A..., initial encounterS39.002D..., subsequent encounterS39.002S..., sequela