ICD-10-CM > Q00-QA0 > Q65-Q79 > Q76 > Q76.4 > Q76.42 Q76.42 Congenital lordosis Non-Billable/Non-Specific Codes Q76.425Congenital lordosis, thoracolumbar regionQ76.426Congenital lordosis, lumbar regionQ76.427Congenital lordosis, lumbosacral regionQ76.428Congenital lordosis, sacral and sacrococcygeal regionQ76.429Congenital lordosis, unspecified region