ICD-10-CM > S00-T88 > S80-S89 > S82 > S82.4 > S82.42 > S82.421 > S82.421N S82.421N Displaced transverse fracture of shaft of right fibula, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion Billable/Specific Copy Code Copy Description