ICD-10-CM>Q00-QA1>Q80-Q89>Q80Q80Congenital ichthyosisNon-Billable/Non-SpecificType 1 ExcludesRefsum's disease (G60.1)CodesQ80.0Ichthyosis vulgarisQ80.1X-linked ichthyosisQ80.2Lamellar ichthyosisQ80.3Congenital bullous ichthyosiform erythrodermaQ80.4Harlequin fetusQ80.8Other congenital ichthyosisQ80.9Congenital ichthyosis, unspecified