Migraine and Headache Evidence: Diagnosis, DBQs and Nexus Letters
A headache diagnosis is important, but the record also needs to communicate what happens during an attack. How long does it last? What symptoms accompany it? What activities do you have to stop?
Those details help a clinician understand your condition and document its effects accurately.
Get the diagnosis clear first
Headaches have different causes and patterns. Migraine may involve nausea and sensitivity to light or sound as well as head pain. A provider evaluates the history and determines the appropriate diagnosis. MedlinePlus explains migraine assessment and symptoms.
If your records repeatedly mention headaches but do not establish a diagnosis—or your symptoms have changed since an older assessment—ask whether a current evaluation is appropriate. Some presentations require further testing or an in-person assessment.
Record what an attack actually does
A headache diary can help you describe the pattern. Include:
- The date, start time and approximate duration.
- The symptoms you experienced.
- Treatment used and what happened afterward.
- Activities interrupted, rest needed and time away from work.
- Changes in the pattern that you discussed with your provider.
Keep entries truthful and consistent. Record ordinary episodes as well as severe ones; do not exaggerate symptoms to match rating language. A diary adds history but does not replace a clinical assessment.
How a headache DBQ may help
VA provides a public Headaches, Including Migraines DBQ. It gives an appropriate clinician a structured way to record the diagnosis, treatment, symptoms, attack characteristics and functional impact.
If your treatment notes do not clearly describe the current pattern, a DBQ may help organize the relevant findings. The provider determines whether the available evidence and assessment are sufficient. A completed form does not guarantee a particular rating or remove the need to attend an examination VA requires.
When a nexus letter may be useful
A nexus review addresses a different question: whether the individual medical evidence supports a relationship to military service or another service-connected condition. Your records should give the clinician the relevant history rather than simply name two diagnoses.
An association, a possible trigger or two conditions occurring together is not automatically proof of a connection. The provider must explain the reasoning supported in your case. If service connection is already established and the concern is current severity, ask whether updated functional documentation is the more relevant need.
Bring the history together
Prepare the headache diary, relevant treatment notes, prior diagnoses and test reports, and a clear account of what has changed. Do not stop medical care while gathering evidence. This article concerns documentation; your treating clinician remains the right person to discuss treatment.
Choose your next step
Need the diagnosis clarified? Explore a telehealth evaluation. Need severity documented? Ask about a DBQ. Need a supported medical connection explained? Start with a nexus letter review.
Nexus letters, DBQs and evaluations are $600–$795 per service, with a quote identifying the service and documents included before purchase. The medical records review is $195. An evaluation does not automatically include a separate nexus letter or DBQ.
Start a free inquiry. Tell us what is missing from your records; you do not need to choose a document before contacting us. No obligation to purchase.
Claim Launchers by Stern HealthWorks is owned and operated by Stern Health LLC. Our licensed providers independently assess the medical evidence. A diagnosis or favorable opinion is not guaranteed, and VA decides benefit claims. We do not file claims or provide legal representation. This article is general education and does not replace individual medical care.