Effective from
- Inherited rules changed
Unspecified dementia, severe, with mood disturbance
Billable diagnosis code
CDC/NCHS · FY2025Coverage depends on the payer, service and applicable policy. A billable code does not guarantee payment.
For US diagnosis claims covered by HIPAA, ICD-10-CM is required from October 1, 2015.
Use the service date for outpatient/professional claims and the discharge date for hospital inpatient claims. Earlier encounters use ICD-9-CM; each individual code must also be valid for the applicable date.
Official coding guidelines → · CMS ↗Grouping depends on the complete encounter and CMS grouper logic.
2026-04-01 – 2026-09-30
CMS · MS-DRG 43.1First observed · 2022-10-01
Latest recorded change · FY2025
Effective from
Unspecified dementia, severe, with mood disturbance
Billable diagnosis code
CDC/NCHS · FY2025| All editions | Effective from | Code history |
|---|---|---|
| FY2023 | 2022-10-01 | Added |
| FY2023 · 04-01 | 2023-04-01 | No tabular change |
| FY2024 | 2023-10-01 | No tabular change |
| FY2024 · 04-01 | 2024-04-01 | No tabular change |
| FY2025 | 2024-10-01 | Inherited rules changed |
| FY2025 · 04-01 | 2025-04-01 | No tabular change |
| FY2026 | 2025-10-01 | No tabular change |
| FY2026 · April | 2026-04-01 | No tabular change |
| FY2027 | 2026-10-01 | No tabular change |
Unspecified dementia, severe, with mood disturbance such as depression, apathy, or anhedonia
disorders of psychological development
This block comprises a range of mental disorders grouped together on the basis of their having in common a demonstrable etiology in cerebral disease, brain injury, or other insult leading to cerebral dysfunction. The dysfunction may be primary, as in diseases, injuries, and insults that affect the brain directly and selectively; or secondary, as in systemic diseases and disorders that attack the brain only as one of the multiple organs or systems of the body that are involved.
Historical assignments from the CDC conversion table support data retrieval. They do not authorize substituting a previous code for the current code.
Previous assignment: F03.91
Other entries in the same category; these are not automatic substitutes.
| Code | Description | Category · further specificity required |
|---|---|---|
| F03.C0 | Unspecified dementia, severe, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety | Billable / specific |
| F03.C1 | Unspecified dementia, severe, with behavioral disturbance | Category · further specificity required |
| F03.C2 | Unspecified dementia, severe, with psychotic disturbance | Billable / specific |
| F03.C4 | Unspecified dementia, severe, with anxiety | Billable / specific |
Official titles and instructions are preserved in their source language. Official sources ↗