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Nexus and Rebuttal Letters: Your Key to VA Claim Success

Dr. Kishan Bhalani
2025-09-15T10:00:00+00:00
6 min read

Understanding Nexus and Rebuttal Letters

Both nexus and rebuttal letters are crucial medical documents in the VA claims process, but they serve different purposes at different stages of your claim.

Nexus Letters: Building Your Initial Case

A nexus letter establishes the connection between your military service and your current medical condition. The term 'nexus' means connection or link.

  • Review of service records
  • Review of medical records
  • Medical rationale
  • Opinion to 'at least as likely as not' standard

Rebuttal Letters: Fighting Unfavorable Decisions

When the VA denies your claim or gives you a lower rating than expected, a rebuttal letter challenges their decision with contrary medical evidence.

  • Addresses specific VA denial reasons
  • Provides alternative medical interpretation
  • Challenges VA examiner conclusions
  • Supports higher disability ratings

When Do You Need Each?

Nexus Letters: For initial claims, reopened claims, or when establishing service connection.

Rebuttal Letters: For appeals, higher level reviews, or when challenging unfavorable VA decisions.

Both types of letters can be the difference between an approved and denied claim, or between a 30% and 70% disability rating.

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