ICD-10-CM > Q00-QA0 > QA0-QA0 > QA0 > QA0.0 > QA0.01 > QA0.010 > QA0.0109 QA0.0109 Neurodevelopmental disorder related to pathogenic variant in other ion channel gene Billable/Specific Copy Code Copy Description Applicable To SCN8A-related neurodevelopmental disorder