What Is Causation
In Social Security disability claims, causation means the medical connection between your condition and your functional limitations. The SSA must establish that your diagnosed impairment actually causes the symptoms and work limitations you report. This is distinct from simply having a diagnosis; you need medical evidence showing how that diagnosis prevents you from working.
How the SSA Evaluates Causation
The SSA uses medical evidence to trace the causal chain from your condition to your inability to work. Here's the process:
- Medical records review: The SSA examines treatment notes, imaging results, lab work, and provider statements that document your symptoms and functional restrictions.
- Consultative exams: If your file lacks sufficient evidence, SSA may order an exam to establish the connection between your diagnosis and limitations. These exams cost the SSA approximately $400-800 per appointment.
- RFC assessment: A residual functional capacity (RFC) determination explicitly connects your medical conditions to what you can and cannot do physically or mentally during an eight-hour workday.
- ALJ consideration: At a hearing before an Administrative Law Judge, causation becomes critical. Your representative must present medical testimony linking your impairment to specific work limitations. ALJs approve approximately 60% of cases that go to hearing, compared to 30% of initial denials, often due to stronger causation evidence presented at that stage.
Common Causation Problems
Many denials stem from weak causation evidence. These issues include:
- No treating provider statement connecting your diagnosis to functional limits
- Gaps in treatment that suggest your condition improved or wasn't severe enough to justify claims
- Vague complaints without corresponding objective findings (imaging, lab results, exam findings)
- Claims of limitations unsupported by what medical providers actually document
Causation and Back Pay
Establishing causation affects when benefits start. Your onset date, the point when causation begins, determines your back pay. If you're approved with an onset date of January 2022, you receive back pay from January 2022 forward, minus any work earnings above the substantial gainful activity level ($1,470 monthly in 2024). Strong causation evidence helps establish an earlier onset date, increasing your back pay award.
Common Questions
- What if my doctor won't write a statement about my limitations?
- Request a detailed RFC or functional capacity evaluation from your treatment provider. If they decline, your representative can request SSA order a consultative exam with an independent physician who can evaluate causation directly.
- Does having objective test results guarantee causation is established?
- Not necessarily. You need evidence showing how those test results cause your specific work limitations. An abnormal MRI alone doesn't prove you can't sit for eight hours; medical testimony must connect the imaging finding to that functional limit.
- Can I win at a hearing without my treating doctor present?
- Yes, but you need strong medical testimony. Many claimants win with testimony from a medical expert (doctor or psychologist) hired by their representative, combined with thorough medical records documenting causation.
Related Concepts
Understanding causation works best alongside these related terms:
- Proximate Cause - the legal distinction between direct and indirect causal links
- Negligence - relevant in cases where disability stems from another party's actions