Nondisplaced posterior arch fracture of first cervical vertebra, subsequent encounter for fracture with nonunion
nondisplaced posterior arch fracture of first cervical vertebra, subsequent encounter for fracture with nonunion
Nondisplaced posterior arch fracture of first cervical vertebra, subsequent encounter for fracture with nonunion
nondisplaced posterior arch fracture of first cervical vertebra, subsequent encounter for fracture with nonunion