ICD-10-CM > Q00-QA0 > Q65-Q79 > Q72 > Q72.5 Q72.5 Longitudinal reduction defect of tibia Non-Billable/Non-Specific Codes Q72.50Longitudinal reduction defect of unspecified tibiaQ72.51Longitudinal reduction defect of right tibiaQ72.52Longitudinal reduction defect of left tibiaQ72.53Longitudinal reduction defect of tibia, bilateral