ICD-10-CM>Q00-QA1>Q65-Q79>Q73Q73Reduction defects of unspecified limbNon-Billable/Non-SpecificCodesQ73.0Congenital absence of unspecified limb(s)Q73.1Phocomelia, unspecified limb(s)Q73.8Other reduction defects of unspecified limb(s)