Educational Resources

VA Disability Blog

Expert guidance on nexus letters, VA disability ratings, medical evidence, and the claims process — written by the Semper Solutus medical documentation team.

The Semper Solutus VA Disability Blog provides authoritative, veteran-focused educational content covering nexus letters, C&P exams, VA combined ratings, secondary service connection, and the medical evidence the VA requires to evaluate disability claims. Every article is written from a medical documentation authority perspective to help veterans understand the process and make informed decisions about their claims.

Nexus Letters April 10, 2026 · 8 min read

What Is a Nexus Letter? The Complete Guide for Veterans (2026)

Everything veterans need to know about nexus letters — what they are, who writes them, what the VA looks for, and how to get one that meets VA adjudication standards.

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Nexus Letters April 10, 2026 · 7 min read

How Much Does a Nexus Letter Cost in 2026?

Price ranges, what affects nexus letter cost, quality versus price tradeoffs, and red flags to watch for when evaluating medical documentation providers.

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Mental Health April 10, 2026 · 9 min read

Nexus Letter for PTSD: What Veterans Need to Know

How PTSD is rated by the VA (0–100%), what a PTSD nexus letter must address, stressor documentation requirements, and secondary conditions linked to PTSD.

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Sleep Apnea April 10, 2026 · 8 min read

Nexus Letter for Sleep Apnea: VA Rating Guide & Medical Evidence

VA rating criteria for sleep apnea (0/30/50/100%), CPAP documentation requirements, how to establish service connection, and secondary-to-PTSD pathways.

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VA Ratings April 10, 2026 · 9 min read

VA Combined Rating Calculator: How VA Math Actually Works (2026)

A step-by-step breakdown of the VA's combined rating formula, the bilateral factor, rounding rules, and real-number examples that show exactly how the VA calculates your rating.

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Secondary Claims April 10, 2026 · 9 min read

Secondary Service Connection: How to Claim Conditions Caused by Your Service-Connected Disability

What secondary conditions are, the most common secondary pairings, and how to build the medical documentation needed to support a secondary claim.

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Medical Evidence April 10, 2026 · 8 min read

What Medical Evidence Does the VA Need to Evaluate Your Disability Claim?

The three required elements of any VA disability claim, types of medical evidence, how to organize your records, and the role of independent medical opinions.

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Tinnitus April 10, 2026 · 7 min read

Tinnitus VA Disability: Rating, Nexus Letters & Secondary Conditions

Why tinnitus is the most commonly claimed VA condition, how the flat 10% rating works, and the secondary conditions — migraines, insomnia, anxiety — that often accompany it.

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Musculoskeletal April 10, 2026 · 9 min read

Nexus Letter for Back Pain: VA Rating Criteria & How to Build Your Claim

Lumbosacral strain ratings, range of motion criteria, the painful motion doctrine, and secondary conditions like radiculopathy and knee problems linked to back conditions.

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C&P Exam April 10, 2026 · 9 min read

C&P Exam Tips: What Every Veteran Needs to Know Before Your Exam

What happens at a Compensation and Pension exam, how to prepare, what to communicate accurately, common mistakes veterans make, and how nexus letters can support your case.

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