preferred_name: Nondisplaced posterior arch fracture of first cervical vertebra, subsequent encounter for fracture with nonunion
preferred_name_lc: nondisplaced posterior arch fracture of first cervical vertebra, subsequent encounter for fracture with nonunion
label: Nondisplaced posterior arch fracture of first cervical vertebra, subsequent encounter for fracture with nonunion
label_lc: nondisplaced posterior arch fracture of first cervical vertebra, subsequent encounter for fracture with nonunion