Effective May 1, 2026, the VA updated M-21-1 to require "but for" causation language in secondary service connection claims under 38 CFR §3.310. Here's exactly what changed, why it matters, and what your nexus letter needs to say right now.
Effective May 1, 2026, the VA updated M-21-1 to require "but for" causation language in secondary service connection claims under 38 CFR §3.310. Here's exactly what changed, why it matters, and what your nexus letter needs to say right now.
Most veterans don't know that a foot condition from military service can be the hidden root cause of their knee, hip, and back pain — and that all of it can be VA service connected. Learn how the kinetic chain works and how to protect your rating.
Your doctor's note might not be enough. Learn why the VA requires rationale and peer-reviewed literature in a nexus letter — and why one sentence from your physician can get your claim denied.
A service-connected foot or ankle injury rarely stays "just" a foot or ankle injury. Over years of walking on a compromised base of support, altered gait transmits abnormal loads to the knees, hips, and low back — causing measurable, durable damage to adjacent joints. Here's the science, the timeline, and how it maps onto the VA secondary service connection framework.
Most large VA "claim consulting" companies broker your nexus letter to a contracted doctor you'll never meet. Here's why a direct doctor-to-veteran relationship produces stronger letters and better outcomes — and what the VA, FTC, and state attorneys general are doing about the unaccredited claim consulting industry.
VAOPGCPREC 1-2017 lets veterans service-connect diabetes, sleep apnea, hypertension, and heart disease through a two-step path with obesity as the intermediate link. Here's how it works.
DBQ vs Nexus Letter — a DBQ documents severity for your rating, a nexus letter proves service connection. Here's the difference and why your VA claim needs both.
The biggest reason nexus letters fail isn't your case — it's a weak, generic letter. Here's what makes a nexus letter effective, and why meticulous, case-by-case detail is the whole job.
38 CFR Explained — a veteran's plain-English guide to Title 38 of the Code of Federal Regulations: the VA's binding rulebook, the key sections that govern every disability claim, and how to use them.
Most veterans are surprised the consultation is free. Here's why I do it that way — and how a no-pressure, no-obligation process makes getting help on your VA claim simple and convenient.
