ICD-10-CM > Z00-Z99 > Z69-Z76 > Z73 > Z73.8 > Z73.81 Z73.81 Behavioral insomnia of childhood Non-Billable/Non-Specific Codes Z73.810Behavioral insomnia of childhood, sleep-onset association typeZ73.811Behavioral insomnia of childhood, limit setting typeZ73.812Behavioral insomnia of childhood, combined typeZ73.819Behavioral insomnia of childhood, unspecified type