PIP Appeal Medical Evidence: GP Letters, Specialist Reports, and What Actually Helps

What the Tribunal Actually Wants to See

The most common mistake in gathering medical evidence for a PIP appeal is treating a diagnosis letter as proof of entitlement. PIP is not assessed on what conditions you have — it is assessed on how those conditions affect your ability to carry out daily living and mobility activities. A letter that says "this patient has fibromyalgia" tells the tribunal almost nothing it can use.

What the panel needs is functional evidence: specific detail about what you struggle to do, how often, and what help or supervision you require. A consultant letter that describes how your condition affects your ability to prepare food safely, wash and dress independently, or walk a certain distance is worth far more than a diagnostic confirmation.

DWP Parliamentary data shows that 59% of overturned PIP decisions result from the tribunal drawing different conclusions from the same underlying facts — and 91% of successful appeals succeed without any new written evidence being submitted. Oral testimony at the hearing itself is often the deciding factor. Medical evidence supports your account; it does not replace it.

Requesting a GP Letter

Your GP is often the easiest starting point, but the letter needs to say the right things. When you request one, be specific about what you need. A useful approach:

Ask your GP to describe how your condition affects your daily functioning — not just the diagnosis, but the practical impact. You might write a short note beforehand listing the activities you struggle with and ask the GP to comment on each one based on their clinical knowledge of your case.

A helpful GP letter typically includes:

• The conditions you have and how long you have had them
• How the conditions affect specific daily activities (cooking, washing, dressing, communicating, managing money, planning journeys, walking)
• Whether your condition fluctuates and what bad days look like
• What treatment or therapy you receive and whether it helps or has side effects that create additional difficulties
• Their professional opinion on whether you can do these activities safely, repeatedly, and in a reasonable time

GPs may charge for medical evidence letters — there is no standard fee, and some do not charge at all if you explain it is for a benefit appeal. A brief letter addressing function is better than a long one repeating your medical history.

Specialist and Consultant Evidence

If you are under a consultant, occupational therapist, physiotherapist, community psychiatric nurse, or other specialist, their evidence often carries more weight for the specific activities they treat. A consultant psychiatrist can speak to your cognitive and social functioning. An occupational therapist can describe what you cannot manage in your home environment. A physiotherapist can address mobility and pain.

Ask them to write in terms of function, not just clinical observations. "This patient has difficulty with meal preparation due to fatigue and pain that prevents standing for more than five minutes" is evidence the tribunal can map directly to a PIP descriptor. "This patient attends monthly appointments" is not.

What Does Not Help

Diagnosis-only letters. The panel already has your diagnoses from the DWP bundle. Repeating them adds nothing.

Letters that say "I support this appeal." An opinion without functional detail gives the tribunal nothing to work with.

Evidence from after the decision date. The tribunal assesses your condition as it was at the date of the DWP decision under appeal. Evidence generated after that date is admissible only if it sheds light on your functional state at the decision date. If your condition has genuinely worsened since, that needs a new claim or change of circumstances notification — it cannot be resolved within the pending appeal.

Timing and Submission

Send any new medical evidence to HMCTS and the DWP at least seven to fourteen days before your hearing. Evidence submitted on the day may be excluded under Rule 15(2)(b) if admitting it would create procedural unfairness.

Include your HMCTS appeal reference number on every document, and list the new evidence in a cover index so the panel knows what they are receiving.

Our PIP Tribunal Appeals guide includes an evidence checklist that maps each type of medical document to the PIP activities it supports, so you know which evidence strengthens which part of your case.

See more England and Wales guides →