ICD-10-CM > M00-M99 > M45-M49 > M48 > M48.5 > M48.55 M48.55 Collapsed vertebra, not elsewhere classified, thoracolumbar region Non-Billable/Non-Specific Codes M48.55XA..., initial encounter for fractureM48.55XD..., subsequent encounter for fracture with routine healingM48.55XG..., subsequent encounter for fracture with delayed healingM48.55XS..., sequela of fracture