ICD-10-CM > F01-F99 > F01-F09 > F02 > F02.8 > F02.81 F02.81 Dementia in other diseases classified elsewhere, unspecified severity, with behavioral disturbance Non-Billable/Non-Specific Codes F02.811Dementia in other diseases classified elsewhere, unspecified severity, with agitationF02.818Dementia in other diseases classified elsewhere, unspecified severity, with other behavioral disturbance