ICD-10-CM>Q00-QA1>Q80-Q89>Q85>Q85.8Q85.8Other phakomatoses, not elsewhere classifiedNon-Billable/Non-SpecificType 1 ExcludesMeckel-Gruber syndrome (Q61.9)CodesQ85.81PTEN hamartoma tumor syndromeQ85.82Other Cowden syndromeQ85.83Von Hippel-Lindau syndromeQ85.89Other phakomatoses, not elsewhere classified