ICD-10-CM > F01-F99 > F01-F09 > F03 > F03.C F03.C Unspecified dementia, severe Non-Billable/Non-Specific Codes F03.C0Unspecified dementia, severe, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxietyF03.C1Unspecified dementia, severe, with behavioral disturbanceF03.C11Unspecified dementia, severe, with agitationF03.C18Unspecified dementia, severe, with other behavioral disturbanceF03.C2Unspecified dementia, severe, with psychotic disturbanceF03.C3Unspecified dementia, severe, with mood disturbanceF03.C4Unspecified dementia, severe, with anxiety