ICD-10-CM > Q00-QA0 > Q65-Q79 > Q71 > Q71.4 Q71.4 Longitudinal reduction defect of radius Non-Billable/Non-Specific Applicable To Clubhand (congenital)Radial clubhand Codes Q71.40Longitudinal reduction defect of unspecified radiusQ71.41Longitudinal reduction defect of right radiusQ71.42Longitudinal reduction defect of left radiusQ71.43Longitudinal reduction defect of radius, bilateral