Depression Secondary to Migraines: VA Disability Claim Guide

Overview

Migraine and depression are one of the best-studied pairings in neurology and psychiatry. If a diagnosed depressive disorder was caused by your service-connected migraines, or made worse by them, it can be service-connected on a secondary basis under 38 CFR § 3.310.

The two ratings measure different things. Migraine (DC 8100) is rated on how often you have prostrating attacks. Depression is rated on how psychiatric symptoms impair your work and social functioning. The claim depends on evidence of symptoms over time, not a single bad week.

How Depression Is Connected to Migraines

What the research shows. In a community cohort of adults aged 25–55 followed for two years, migraine at baseline predicted first-onset major depression (OR 5.8). Other severe headaches did not significantly predict it. Major depression at baseline also predicted first-onset migraine (OR 3.4). The authors described this as a bidirectional association (Breslau et al., Neurology, 2003). A German population survey found past-year migraine associated with depression and other mental disorders, and the link with any mood disorder held after adjusting for other mental disorders (adjusted OR 1.61) (Ratcliffe et al., General Hospital Psychiatry, 2009).

Because the link runs both ways, the timeline is central to this claim. An examiner will want to know which came first, or whether migraines worsened depression you already had.

Pathways a clinician can document:

• Disability from attacks. Lost workdays, cancelled plans, and missed family events, and the hopelessness that repetition brings.
• Unpredictability. Living around the next attack narrows daily life and wears down mood.
• Sleep disruption during and after attacks.
• Social withdrawal. Avoiding light, noise, and commitments in case a migraine hits.
• Treatment effects. If a medication prescribed for your migraines affected your mood, ask the prescriber to document it, because that can be another secondary pathway.

Evidence Requirements

• A current depressive disorder diagnosis conforming to DSM-5 (38 CFR § 4.125), such as major depressive disorder (DC 9434), persistent depressive disorder (DC 9433), or unspecified depressive disorder (DC 9435).
• Service-connected migraines. Your rating decision for DC 8100.
• A medical opinion on the link addressing both causation and aggravation.
• A headache log. Dates, duration, and whether you had to lie down, with notes on mood, cancelled plans, and missed work. This documents both conditions and how they interact.
• Mental health records. Diagnosis, medications, therapy notes, and PHQ-9 scores over time.
• Timeline records showing when migraines began or escalated relative to depressive symptoms.
• Work records, noting whether lost time was from attacks, from depression, or from both.
• Lay statements from a spouse or family member about mood changes and when they began.

Rating Criteria for Depression

Depression is rated under the General Rating Formula for Mental Disorders (38 CFR § 4.130). Major depressive disorder is DC 9434.

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.

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.

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, and mild memory loss (such as forgetting names, directions, recent events).

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; impaired judgment; impaired abstract thinking; disturbances of motivation and mood; and difficulty in establishing and maintaining effective work and social relationships.

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; intermittently illogical, obscure, or irrelevant speech; near-continuous panic or depression affecting the ability to function independently, appropriately and effectively; impaired impulse control; spatial disorientation; neglect of personal appearance and hygiene; difficulty in adapting to stressful circumstances; and inability to establish and maintain effective relationships.

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; and memory loss for names of close relatives, own occupation, or own name.

The symptoms listed are examples. VA rates on all the evidence of record, considering frequency, severity, duration, and remissions, not solely on the examiner’s assessment at the moment of the exam (38 CFR § 4.126(a)).

Overlap pitfalls. Time lost to prostrating attacks, and the “severe economic inadaptability” in the 50% migraine criteria, belong to the migraine rating. The depression rating should reflect psychiatric impairment, such as low mood, loss of interest, withdrawal, and poor concentration on non-headache days (38 CFR § 4.14). If you already have a service-connected mental disorder such as PTSD, overlapping depressive symptoms are generally included in that mental health rating. Separate ratings are possible only when medical evidence clearly separates non-overlapping symptoms; the same impairment cannot be compensated twice (38 CFR 4.14; Amberman v. Shinseki, 570 F.3d 1377 (Fed. Cir. 2009)).

C&P Exam Tips

The exam is usually a mental health evaluation using VA’s Mental Disorders (other than PTSD and Eating Disorders) DBQ.

• Describe typical days and your worst days accurately, with frequency and duration.
• Separate headache days from depression. Explain how you feel and function between attacks, not only during them.
• Explain the timeline: when the migraines started or worsened, and when your mood changed.
• Give concrete work and social examples, such as jobs lost, relationships strained, and activities dropped.
• List all treatment, including antidepressants, therapy, and migraine preventives, and note any mood side effects.
• Bring a written summary of symptoms and medications so you do not forget details under stress.
• Report suicidal thoughts honestly. If you are in crisis, call 988 and press 1 for the Veterans Crisis Line.

Nexus Letter Tips

Who can write it. Any competent medical professional. A psychiatrist, psychologist, or treating mental health provider is usually best, and a neurologist can add supporting detail about attack frequency. Reasoning and familiarity with your records matter more than title.

A useful opinion should:

1. Confirm the provider reviewed your records, including your claims file if available, and evaluated you
2. State the DSM-5 depressive diagnosis
3. Lay out the timeline of migraine onset or escalation relative to depressive symptoms, and address the bidirectional literature directly
4. Explain the specific pathway in your case, such as disability from attacks, unpredictability, sleep, or withdrawal
5. Consider other possible causes, and explain why migraines are at least as likely as not a cause or aggravating factor
6. Optionally cite real literature, such as Breslau et al. (2003)
7. Conclude on both causation and aggravation using the “at least as likely as not” standard

Aggravation. If depression predated the migraines, the claim is aggravation under 38 CFR § 3.310(b). VA will not concede aggravation unless the baseline severity is established by medical evidence from before the aggravation, or by the earliest medical evidence between the onset of aggravation and the evidence of current severity. The rating is the current level minus the baseline.

Impact on Combined Rating

Ratings combine under 38 CFR § 4.25.

Example: 50% migraines (very frequent, completely prostrating and prolonged attacks productive of severe economic inadaptability) and 30% depression.

1. Start with 50%, leaving 50% efficiency
2. 30% of 50 = 15
3. 50 + 15 = 65, which rounds to 70% combined

At the 30% migraine level (prostrating attacks averaging once a month over the last several months): 30% migraines + 30% depression = 30 + 21 = 51, which rounds to 50% combined.

TDIU. Schedular TDIU under 38 CFR § 4.16(a) requires one disability at 60% or more, or a combined 70% or more with at least one disability at 40% or more. In the first example, the 50% migraine rating and the 70% combined rating meet that threshold. The veteran must still show that service-connected disabilities prevent substantially gainful employment.

Related Guides

• Migraines VA Disability Rating Guide — rating criteria and C&P exam tips for migraines
• Depression VA Disability Rating Guide — how depression is rated under the General Rating Formula for Mental Disorders
• Anxiety VA Disability Rating Guide — rated under the same formula, with overlapping symptoms generally evaluated together
• VA Disability Calculator — calculate your combined rating
• How to File a Secondary Condition Claim — step-by-step guide for secondary service connection

Correction — October 21, 2026: Clarified that overlapping mental health symptoms usually share one rating, and when separate ratings are possible.

For personalized guidance on your VA disability claim, consult a VA-accredited VSO, attorney, or claims agent.