Delirium — VA Disability Rating Criteria (DC 9300)

Diagnostic Code 9300 · 38 CFR §4.130

What Is It?

Delirium is an acute disturbance in attention, awareness, and cognition that develops over a short period and fluctuates in severity. It is caused by an underlying medical condition, substance intoxication or withdrawal, medication effects, or multiple combined factors. For veterans, delirium may occur as a result of traumatic brain injury, toxic exposures, combat injuries requiring surgery, or medication reactions during service. While delirium itself is typically temporary, it can cause lasting cognitive impairment — particularly in cases of prolonged or repeated episodes. When residual cognitive or psychological symptoms persist, they may be rated under DC 9300 using the General Rating Formula for Mental Disorders. If the lasting decline is diagnosed as a neurocognitive disorder, it is generally coded under the neurocognitive code that fits its cause, such as DC 9304 for traumatic brain injury or DC 9326 for another medical condition or a substance or medication.

Rating Criteria

RatingCriteria
100%Total occupational and social impairment, due to such symptoms as: gross impairment in thought processes or communication; persistent delusions or hallucinations; grossly inappropriate behavior; persistent danger of hurting self or others; intermittent inability to perform activities of daily living (including maintenance of minimal personal hygiene); disorientation to time or place; memory loss for names of close relatives, own occupation, or own name.
70%Occupational and social impairment, with deficiencies in most areas, such as work, school, family relations, judgment, thinking, or mood, due to such symptoms as: suicidal ideation; obsessional rituals which interfere with routine activities; speech intermittently illogical, obscure, or irrelevant; near-continuous panic or depression affecting the ability to function independently, appropriately and effectively; impaired impulse control (such as unprovoked irritability with periods of violence); spatial disorientation; neglect of personal appearance and hygiene; difficulty in adapting to stressful circumstances (including work or a worklike setting); inability to establish and maintain effective relationships.
50%Occupational and social impairment with reduced reliability and productivity due to such symptoms as: flattened affect; circumstantial, circumlocutory, or stereotyped speech; panic attacks more than once a week; difficulty in understanding complex commands; impairment of short- and long-term memory (e.g., retention of only highly learned material, forgetting to complete tasks); impaired judgment; impaired abstract thinking; disturbances of motivation and mood; difficulty in establishing and maintaining effective work and social relationships.
30%Occupational and social impairment with occasional decrease in work efficiency and intermittent periods of inability to perform occupational tasks (although generally functioning satisfactorily, with routine behavior, self-care, and conversation normal), due to such symptoms as: depressed mood, anxiety, suspiciousness, panic attacks (weekly or less often), chronic sleep impairment, mild memory loss (such as forgetting names, directions, recent events).
10%Occupational and social impairment due to mild or transient symptoms which decrease work efficiency and ability to perform occupational tasks only during periods of significant stress, or symptoms controlled by continuous medication.
0%A mental condition has been formally diagnosed, but symptoms are not severe enough either to interfere with occupational and social functioning or to require continuous medication.

Evidence Needed

Medical records documenting the delirium episode during service or caused by a service-connected condition are essential. These may include hospital records showing altered mental status, ICU records, or surgical records noting post-operative delirium. Follow-up neuropsychological testing showing residual cognitive impairment strengthens the claim. A nexus opinion connecting the delirium to service or a service-connected condition is required. Buddy statements from family describing cognitive or behavioral changes after the episode add context.

C&P Exam Tips

If your claim is based on residual symptoms after a delirium episode, describe the current cognitive difficulties you experience: memory problems, difficulty concentrating, confusion, difficulty with complex tasks. Explain when the delirium occurred, what caused it, and how your functioning has been different since. If you underwent neuropsychological testing, reference those results. Describe the practical impact: Can you manage finances? Follow multi-step instructions? Remember appointments?

How to File

File on VA Form 21-526EZ. Include hospital records documenting the delirium episode and its cause. Submit follow-up evaluations showing residual impairment. A nexus letter connecting the episode to a service event or condition is important. If filing as secondary to a service-connected condition (such as TBI or medication side effects), include the primary claim number.

Common Mistakes

The main mistake is not recognizing that a delirium episode during service left lasting cognitive effects. Many veterans attribute persistent cognitive problems to aging or other causes without connecting them to a documented episode. Not obtaining the original hospitalization records is a common oversight.

Frequently Asked Questions

Can I file for delirium that happened during service?

Yes, if the episode left residual cognitive or psychological impairment. The rating is based on your current symptoms, not the acute episode itself. You need documentation of the original episode and evidence of persistent effects.

How is delirium different from TBI for VA purposes?

Delirium is an acute confused state caused by a medical condition, while TBI is caused by physical trauma to the head. They can overlap — a TBI can cause delirium. If both apply, work with your VSO to determine the best rating approach to avoid pyramiding.

Related guides

Related articles