Why Most Veterans With PTSD Leave Money on the Table
If you have a service-connected PTSD rating, there's a good chance you qualify for several thousand dollars more per month — and you don't know it yet. You're not alone. Tens of thousands of veterans with PTSD are compensated only for their psychiatric symptoms while walking around with hypertension, sleep apnea, GERD, migraines, and other conditions that are directly caused or worsened by their PTSD. These conditions are separately ratable under federal law.
This isn't a loophole. It's the law. Under 38 CFR § 3.310, VA is required to service-connect any condition that is proximately due to, or the result of a service-connected disability. PTSD, with its profound physiological effects on the body — chronic stress hormones, disrupted sleep, nervous system dysregulation, and the medications used to treat it — is one of the most powerful generators of secondary conditions in the VA system.
§ 3.310 The federal law that authorizes secondary claims
This guide covers every major condition secondary to PTSD, how VA rates each one, what evidence you'll need, and exactly how to file. Whether you're at 50% for PTSD and wondering what's next, or you've been denied a secondary claim and want to know why — this is your reference guide.
What Is Secondary Service Connection? (38 CFR § 3.310)
Secondary service connection means VA grants disability compensation for a condition that was not directly caused by military service, but was caused or aggravated by a condition that is service-connected.
The legal basis is 38 CFR § 3.310 — Disabilities that are proximately due to, or aggravated by, service-connected disease or injury. It reads:
"Except as provided in § 3.300(c), disability which is proximately due to or the result of a service-connected disease or injury shall be service connected." — 38 CFR § 3.310(a)
There are two pathways under § 3.310:
- Proximately due to (causation): Your service-connected PTSD directly caused a new condition. Example: PTSD-driven chronic stress caused hypertension.
- Aggravation: You had a pre-existing condition, and PTSD has made it permanently worse beyond its natural progression. Example: PTSD worsened a pre-existing IBS diagnosis.
What You Must Prove for Secondary Service Connection
To win a secondary claim, VA requires three things:
- A current diagnosis of the secondary condition
- A service-connected primary condition (PTSD, in this case)
- A medical nexus — a doctor's opinion that the secondary condition is "at least as likely as not" caused or permanently aggravated by the service-connected PTSD
Unlike presumptive conditions (like Agent Orange cancers or burn pit respiratory disease), most PTSD secondary conditions are not presumptive. This means VA will not automatically grant them — you need a nexus letter from a licensed medical provider. We'll cover exactly what that looks like in Section 6.
The VBA M21-1 Adjudication Procedures Manual (Part IV, Subpart ii, Chapter 2, Section C) instructs VA raters to develop secondary service connection claims and request nexus opinions when evidence of record suggests a possible relationship between service-connected and claimed conditions. Veterans should not wait for VA to develop this evidence — submit your own nexus letter proactively.
The Full Secondary Conditions List (Quick Reference Table)
The table below covers the 13 most common and high-value secondary conditions to PTSD. All require a nexus letter unless otherwise noted. "Not presumptive" means VA will not automatically connect these — you must submit medical evidence of the link.
| Condition | Diagnostic Code | VA Rating Range | Nexus Letter Required? |
|---|---|---|---|
| Hypertension | DC 7101 | 10–60% | Yes — not presumptive |
| Sleep Apnea (OSA) | DC 6847 | 30–50% | Yes — not presumptive |
| Erectile Dysfunction | DC 7522/7523 | 0% + SMC-K (~$130/mo) | Yes — not presumptive |
| GERD | DC 7346 | 10–60% | Yes — not presumptive |
| IBS / Functional GI | DC 7319 | 10–30% | Yes — not presumptive |
| Migraines | DC 8100 | 10–50% | Yes — not presumptive |
| Major Depressive Disorder | DC 9434 | 10–100% (combined or separate) | Yes — but often comorbid |
| Insomnia (Primary) | DC 6847 / 9054 | 0–30% (overlap issues) | Yes — and separate rater needed |
| Substance Use Disorder | DC 9201–9211 | Varies — complex eligibility | Yes + willful misconduct bar |
| Cardiovascular Disease / IHD | DC 7005 | 10–100% | Yes — not presumptive |
| Chronic Pain Syndrome | Various (site-specific) | Varies by location/condition | Yes — central sensitization nexus |
| Kidney Disease (CKD) | DC 7101 → 7502–7505 | 30–100% (tertiary) | Yes — tertiary via hypertension |
| Type 2 Diabetes | DC 7913 | 10–100% | Yes — medication-induced pathway |
| Obesity-Related Conditions | Underlying condition DC | Varies — developing case law | Yes — medication weight gain chain |
Top Conditions — Detailed Breakdown
The following sections cover the highest-value secondary conditions in depth — what the medical link is, how VA rates the condition, what your nexus letter needs to say, and which deep-dive resources to consult.
1. Hypertension (High Blood Pressure)
The PTSD–Hypertension Connection
Hypertension is one of the most powerful secondary claims a veteran with PTSD can make. The physiological link is well-documented in peer-reviewed medical literature. PTSD activates the hypothalamic-pituitary-adrenal (HPA) axis and the sympathetic nervous system, causing chronic elevations in cortisol and catecholamines (adrenaline and noradrenaline). These hormones directly raise blood pressure by causing vasoconstriction and increasing heart rate. Studies published in the Journal of Traumatic Stress and Psychosomatic Medicine have found PTSD to be an independent predictor of hypertension, even after controlling for other cardiovascular risk factors.
A 2014 study of over 300,000 veterans found those with PTSD had a significantly higher prevalence of hypertension than those without. The VA's own research arm (NCPTSD) has acknowledged this relationship. This body of evidence gives your nexus letter a strong scientific foundation.
How VA Rates Hypertension (DC 7101)
- 10%: Diastolic pressure 100–109 mmHg, OR systolic 160–199 mmHg, OR requires continuous medication
- 20%: Diastolic 110–119 mmHg, OR systolic 200 or more mmHg
- 40%: Diastolic 120–129 mmHg
- 60%: Diastolic 130 mmHg or higher
Note: Even a 10% hypertension rating adds $175/month to a veteran already at 70% PTSD (combined ratings math). At higher PTSD ratings, the combined effect can be significant.
What Your Nexus Letter Must Say
Your nexus letter should: (1) state your PTSD diagnosis, (2) state your hypertension diagnosis, (3) explain the HPA axis / sympathetic nervous system mechanism, (4) cite medical literature supporting the link, and (5) state that your hypertension is "at least as likely as not" caused or aggravated by your service-connected PTSD.
→ Read our full guide: Hypertension Secondary to PTSD — Filing & Winning
2. Sleep Apnea (Obstructive Sleep Apnea)
The PTSD–Sleep Apnea Connection
Sleep disturbance is a core symptom of PTSD (DSM-5 Criterion D). Hypervigilance — the state of heightened alertness that keeps veterans scanning for threats — does not turn off at night. This disrupts sleep architecture at the neurological level, interfering with the natural transitions between sleep stages that keep the upper airway muscles toned. Research published in Sleep Medicine Reviews has found that PTSD is significantly associated with the development and worsening of obstructive sleep apnea (OSA), independent of body weight.
Critically, the relationship works in both directions: PTSD disrupts sleep → OSA develops or worsens → OSA worsens PTSD symptoms → cycle continues. VA recognizes sleep apnea as a highly ratable condition, and it's one of the most frequently approved secondary claims nationally.
How VA Rates Sleep Apnea (DC 6847)
- 0%: Asymptomatic, no treatment required
- 30%: Persistent daytime hypersomnolence
- 50%: Requires use of a breathing assistance device (CPAP, BiPAP) — this is the most common rating
- 100%: Chronic respiratory failure with carbon dioxide retention, cor pulmonale, or requires tracheostomy
Most veterans with PTSD-secondary sleep apnea receive a 50% rating because treatment requires a CPAP machine. Combined with PTSD, this can push total combined disability to 80–90%.
What Your Nexus Letter Must Address
Get a sleep study (polysomnography) first — you need an actual OSA diagnosis (usually AHI ≥5). Then have your primary care physician or a sleep medicine specialist write a nexus letter linking the PTSD hypervigilance/sleep disruption mechanism to the development of OSA.
→ Read our full guide: Sleep Apnea Secondary to PTSD — Complete Filing Guide
3. Erectile Dysfunction (ED)
The PTSD–ED Connection
Erectile dysfunction secondary to PTSD has two distinct pathways, both of which VA recognizes:
- Medication-induced ED: SSRIs (sertraline, paroxetine, fluoxetine) and SNRIs are first-line PTSD treatments. Sexual dysfunction — including erectile dysfunction, delayed ejaculation, and reduced libido — is among the most common side effects, affecting 30–80% of men on these medications per studies in the Journal of Clinical Psychiatry.
- Psychogenic ED: PTSD's core symptoms — emotional numbing, hypervigilance, avoidance, depression — directly disrupt sexual function at the psychological level. This is well-documented in the VA's own mental health literature.
The Critical SMC-K Benefit
ED itself is rated at 0% under 38 CFR Part 4 — meaning no monthly dollar amount from the rating alone. However, a 0% service-connected ED diagnosis qualifies the veteran for Special Monthly Compensation (SMC-K) under 38 CFR § 3.350(a), which pays approximately $130/month as of 2026 regardless of your combined disability rating. This is free money that thousands of veterans with PTSD are leaving on the table because they assume a 0% rating is worthless.
→ Read our full SMC-K guide: Erectile Dysfunction VA Rating & Special Monthly Compensation
4. GERD, IBS & Digestive Disorders
The PTSD–GI Connection
The gut-brain axis is one of the most well-studied biological pathways in psychosomatic medicine. Chronic psychological stress — exactly the kind PTSD produces — directly affects gastrointestinal motility, acid secretion, mucosal integrity, and the gut microbiome. Research published in Clinical Gastroenterology and Hepatology and the American Journal of Gastroenterology consistently shows veterans with PTSD have significantly higher rates of GERD, IBS, functional dyspepsia, and other GI disorders.
The autonomic nervous system dysregulation in PTSD — chronic "fight or flight" activation — disrupts the normal parasympathetic ("rest and digest") control of the GI tract. This causes both increased acid production (GERD) and disrupted motility (IBS).
How VA Rates These Conditions
GERD (DC 7346 — Hiatal Hernia / Esophageal Reflux):
- 10%: Symptoms controlled by continuous medication
- 30%: Persistently recurrent epigastric distress, dysphagia, pyrosis, regurgitation, or prolonged treatment required
- 60%: Symptoms causing considerable impairment of health
IBS (DC 7319 — Irritable Colon):
- 10%: Moderate — diarrhea or alternating diarrhea/constipation, with moderately frequent episodes of abdominal distress
- 30%: Severe — diarrhea or alternating diarrhea/constipation, with frequent episodes of abdominal distress
5. Migraines & Persistent Headaches
The PTSD–Migraine Connection
Migraines have a documented bidirectional relationship with PTSD. Chronic stress alters the trigeminal pain pathway and raises cortisol levels, both of which are migraine triggers. Additionally, many veterans have comorbid Traumatic Brain Injury (TBI), which is an independent cause of post-traumatic headaches — and TBI with PTSD creates a compounded effect. Studies in Headache: The Journal of Head and Face Pain have found that PTSD is one of the strongest independent predictors of migraine chronification.
How VA Rates Migraines (DC 8100)
- 10%: Characteristic prostrating attacks averaging one in two months over the last several months
- 30%: Characteristic prostrating attacks occurring on average once a month over the last several months
- 50%: With very frequent completely prostrating and prolonged attacks productive of severe economic inadaptability
"Prostrating" is the key word — it means an attack severe enough to require bed rest. Document the frequency and severity of your migraine episodes meticulously in a headache diary before your C&P exam.
6. Major Depressive Disorder (MDD) / Depression
The PTSD–Depression Relationship
PTSD and major depressive disorder (MDD) have an extremely high co-occurrence rate — studies estimate 48–55% of veterans with PTSD also meet criteria for MDD. The question for VA purposes is whether the depression is distinct and separable from PTSD symptoms. Under the VA's "sympathetic reading" doctrine and applicable M21-1 guidance, a veteran can receive separate ratings for PTSD and depression if the conditions have distinct symptom profiles that are not "overlapping" under 38 CFR § 4.14 (pyramiding).
Alternatively, if depression developed as a result of chronic PTSD — which is a clearly recognized pathway in psychiatric literature — it can be separately service-connected as secondary under § 3.310. This can result in a higher combined rating or a higher individual rating if MDD is rated more severely than the PTSD symptoms alone would support.
Key practice note: VA raters often try to combine PTSD and MDD into a single rating. You may need to actively argue for a separate rating. Get a private psychiatrist's opinion that clearly delineates the two diagnoses and their independent functional limitations.
7. Substance Use Disorder (Alcohol/Drug Use)
The PTSD–SUD Connection & the Willful Misconduct Bar
Many veterans with PTSD self-medicate with alcohol, cannabis, opioids, or other substances. The "self-medication hypothesis" is well-supported in addiction research — substances temporarily suppress the hypervigilance and emotional pain of PTSD. However, VA law contains a willful misconduct bar at 38 CFR § 3.301(a) that prohibits service connection for conditions resulting from the veteran's own "willful misconduct."
The critical legal distinction: using substances to manage PTSD symptoms ≠ willful misconduct when the substance use developed as a direct coping mechanism for service-connected PTSD. Multiple Board of Veterans' Appeals (BVA) decisions and the Veterans Court (CAVC) have granted secondary service connection for substance use disorders when: (1) PTSD is service-connected, (2) the substance use clearly post-dates or co-develops with PTSD, and (3) the medical nexus establishes self-medication as the etiology.
This is one of the most complex secondary claims to make. We strongly recommend working with a VA-accredited attorney or an experienced VSO on this claim type.
8. Cardiovascular Disease / Ischemic Heart Disease (IHD)
The PTSD–Heart Disease Connection
Chronic psychological stress is one of the most powerful independent risk factors for cardiovascular disease. PTSD drives this through multiple mechanisms: chronic cortisol elevation causing arterial inflammation, sympathetic nervous system overstimulation raising heart rate and blood pressure, disrupted sleep increasing cardiovascular stress, and behavioral factors (smoking, alcohol, physical inactivity) associated with PTSD coping. Research in JAMA Internal Medicine and the American Heart Journal has established PTSD as an independent predictor of coronary artery disease and major adverse cardiac events.
Note: For Vietnam-era veterans with Agent Orange exposure, ischemic heart disease is also a presumptive condition — meaning no nexus letter is required for direct service connection. But for veterans whose IHD developed post-service secondary to PTSD, a § 3.310 claim with nexus letter is the correct pathway.
9. Insomnia (Primary Insomnia Disorder)
Insomnia vs. PTSD — The Overlap Problem
Sleep disturbance is a listed criterion under the PTSD rating formula (38 CFR § 4.130), which creates a pyramiding concern under 38 CFR § 4.14 — VA cannot rate the same symptom twice. However, if a veteran's insomnia constitutes a separate and distinct diagnosis (Primary Insomnia Disorder, or Chronic Insomnia Disorder under DSM-5) with functional limitations beyond those captured in the PTSD rating, a separate rating may be justified.
The best approach: have your psychiatrist or sleep physician document insomnia as a distinct diagnosable condition with its own functional impact, and explicitly state that the insomnia symptoms are not fully captured in the existing PTSD rating. This is an area where BVA decisions vary — get specific legal guidance.
→ Read our guide: Insomnia Secondary to PTSD/TBI — Rating Issues & DC 6847 Explained
10. Chronic Pain Syndrome / Central Sensitization
How PTSD Amplifies Pain
PTSD and chronic pain share overlapping neurobiological pathways. Both involve the amygdala, anterior cingulate cortex, and the HPA axis. PTSD causes central sensitization — a state of heightened neural excitability in pain-processing circuits that lowers the pain threshold and amplifies pain signals. Research in Pain (the journal) and Neuroscience & Biobehavioral Reviews shows veterans with PTSD experience pain more intensely and recover from pain more slowly than veterans without PTSD.
For VA purposes, chronic pain is typically rated by reference to the underlying condition causing it (back pain rated as lumbar spine, joint pain rated as knee/hip, etc.) rather than as a standalone diagnosis. A nexus letter connecting the increased severity of pain conditions to PTSD-driven central sensitization can support higher ratings for existing musculoskeletal conditions.
11. Type 2 Diabetes (Medication-Induced)
The PTSD Medication → Diabetes Chain
Several atypical antipsychotic medications commonly prescribed for PTSD — including quetiapine (Seroquel), risperidone (Risperdal), and olanzapine (Zyprexa) — have a well-documented metabolic side effect profile that includes significant weight gain and insulin resistance, leading to Type 2 diabetes. The FDA requires black-box warnings on these medications for hyperglycemia and diabetes risk. If a veteran is prescribed these medications for service-connected PTSD and develops Type 2 diabetes, VA can service-connect the diabetes under § 3.310 via the medication chain: PTSD → prescribed antipsychotic → induced Type 2 diabetes.
This pathway requires careful documentation: your PTSD treatment records showing antipsychotic prescription, your diabetes diagnosis timeline, and a nexus letter from an endocrinologist or primary care physician explaining the medication-induced mechanism.
12. Chronic Kidney Disease (Tertiary Claim)
The Three-Tier Chain: PTSD → Hypertension → Kidney Disease
Hypertension is the second leading cause of chronic kidney disease (CKD) in the United States. If a veteran has service-connected PTSD → secondary hypertension → tertiary CKD from hypertensive nephropathy, the CKD can be service-connected under 38 CFR § 3.310. This is called a tertiary service connection — there's no limit in § 3.310 on how many steps removed a condition can be, as long as each causal link is supported by medical evidence.
This is a high-value claim path: CKD stage 4 or 5 (or dialysis) can be rated 80% or 100%, significantly impacting combined disability and TDIU eligibility.
How to File a Secondary Claim (Step-by-Step)
Filing a secondary service connection claim follows the same basic process as any VA disability claim, with a few important additions.
- Confirm your primary PTSD is already service-connected. Secondary claims require an established service-connected primary condition. If your PTSD is still pending or was denied, address that first.
- Get a current diagnosis of the secondary condition. VA cannot rate a condition you haven't been diagnosed with. See your VA provider or a private physician. Get the diagnosis in writing.
- File an Intent to File (VA Form 21-0966). This preserves your effective date (and thus your back-pay start date) while you gather evidence. Submit it online at VA.gov or have a VSO submit it on your behalf. You then have 12 months to submit your full claim.
- Obtain a nexus letter from a qualified medical provider linking the secondary condition to your PTSD. See Section 6 for exactly what this letter needs to contain.
- File VA Form 21-526EZ (Application for Disability Compensation and Related Compensation Benefits). In the "Remarks" section, explicitly state: "Claiming [condition] as secondary to service-connected PTSD under 38 CFR § 3.310." Upload the nexus letter and any supporting medical records.
- Attend your C&P exam. VA will likely schedule a Compensation & Pension (C&P) exam. Bring your nexus letter, medical records, and be prepared to discuss how the secondary condition developed in relation to your PTSD.
- Review your rating decision and appeal if necessary. If denied, use a Supplemental Claim (VA Form 20-0995) with new and relevant evidence, or request a Higher-Level Review (VA Form 20-0996).
Ready to File Your Secondary Claims?
Use claim.vet's guided claim builder to file your secondary service connection claims correctly the first time.
File My Secondary Claim → I Was Denied — File SupplementalThe Nexus Letter: What You Need and How to Get One
A nexus letter (also called an Independent Medical Opinion, or IMO) is a written statement from a licensed medical provider that provides the medical opinion connecting your secondary condition to your service-connected PTSD. It is the single most important piece of evidence in a secondary service connection claim.
The Legal Standard: "At Least As Likely As Not"
Under 38 CFR § 3.102, VA uses a "benefit of the doubt" standard. A nexus letter doesn't need to prove causation to a medical certainty. The opinion needs to state that the secondary condition is "at least as likely as not" (≥50% probability) caused or permanently aggravated by the primary service-connected condition. This is a relatively low legal bar — you don't need to prove PTSD definitely caused the hypertension, only that it's at least as probable as not.
What a Strong Nexus Letter Must Include
- Provider credentials — Name, medical degree, specialty, license number, and clinical experience relevant to the condition being addressed
- Review of records — Statement that the provider reviewed the veteran's service treatment records, current medical records, and relevant history
- Primary condition confirmation — Acknowledgment that the veteran has a service-connected PTSD diagnosis
- Secondary diagnosis — Confirmation of the current secondary condition diagnosis
- Medical rationale — Explanation of the biological or physiological mechanism connecting PTSD to the secondary condition (this is where citing peer-reviewed literature strengthens the opinion)
- The nexus opinion itself — The explicit statement: "It is my medical opinion that [condition] is at least as likely as not caused by / aggravated beyond its natural progression by [veteran]'s service-connected PTSD."
- Signature — Signed and dated by the provider
Where to Get a Nexus Letter
- Your VA primary care physician or VA mental health provider — You can ask your VA doctor to write a nexus letter. Some will; many won't due to institutional concerns. It's worth asking.
- Private physician familiar with VA ratings — A private internist, cardiologist, neurologist, or psychiatrist who understands the "at least as likely as not" standard. This is often the most reliable route.
- Telehealth IMO services — Several companies specialize in nexus letters for VA claims (Nexus Letters Pro, IMO providers, etc.). Quality varies — review sample letters before committing.
- VA-accredited attorney's recommended providers — If you work with an attorney, they typically have relationships with qualified nexus letter providers.
→ Use our Nexus Letter Generator to draft the framework for your secondary claim
6 Mistakes That Sink Secondary Claims
- Filing without a nexus letter. VA will deny a secondary claim that has no medical nexus opinion, even if the medical connection is widely understood. Never file without one. This is the number one reason secondary claims fail.
- Getting a generic nexus letter. A letter that says "PTSD is associated with hypertension in the medical literature" without explicitly opining on your case will be assigned little weight. VA raters are trained to distinguish between generic medical literature and case-specific opinions.
- Not establishing the timeline correctly. VA looks for evidence that the secondary condition developed or worsened after the onset of the primary service-connected condition. If your medical records show hypertension starting before your PTSD diagnosis, the claim becomes much harder. Work with your provider to document the chronological relationship.
- Claiming conditions already captured in the PTSD rating. Under 38 CFR § 4.14 (prohibition against pyramiding), you cannot receive separate ratings for symptoms already evaluated in your existing rating. Sleep disturbance and anxiety, for instance, are listed in the PTSD rating formula. You need evidence that a separate diagnosable condition exists with distinct functional limitations beyond what PTSD alone accounts for.
- Missing the C&P exam. Missing a scheduled C&P exam without rescheduling is treated as a waiver of evidence and will typically result in a denial. Reschedule if needed — never simply skip.
- Not appealing initial denials. VA denies many legitimate secondary claims on the first pass, often citing insufficient nexus evidence. A Supplemental Claim with a stronger nexus letter reverses a significant percentage of denials. Don't accept a denial as final.
Frequently Asked Questions
Yes. The percentage of your PTSD rating does not limit your ability to file secondary claims. As long as PTSD is service-connected at any level (even 0%), you can claim secondary conditions under 38 CFR § 3.310. The primary condition just needs to exist as a service-connected disability — not be rated at a specific level.
There is no limit. You can file for multiple secondary conditions simultaneously on the same VA Form 21-526EZ. In fact, filing all secondary claims together is efficient — it creates a single effective date for all conditions. Many veterans file for hypertension, sleep apnea, GERD, and erectile dysfunction all in one submission. Each condition will be evaluated independently.
A negative C&P examiner opinion is not the end. You have the right to submit a private nexus letter (IMO) that rebuts the C&P opinion. Under VA regulations, the rater must weigh all medical opinions, and a well-reasoned private nexus letter can outweigh a cursory negative C&P opinion. This is exactly the scenario where working with a VA-accredited attorney adds significant value. File a Supplemental Claim with your IMO as new and relevant evidence.
No. Filing secondary claims does not trigger a review of your existing PTSD rating unless you specifically request an increase (or VA has a clear and unmistakable error to correct). Secondary claims are additive — they can only increase your total combined rating, not reduce it. The only exception is if VA independently decides to propose a rating reduction based on improvement in your PTSD, which requires a separate process with specific procedural protections.
The legal framework for secondary service connection (38 CFR § 3.310) has not changed dramatically in recent years. However, ongoing BVA and CAVC case law continues to expand what VA will accept as sufficient nexus evidence for specific conditions. The obesity/medication weight gain pathway and medication-induced diabetes claims have seen growing acceptance in 2024–2026. Additionally, VA's updated M21-1 guidance has clarified how raters should evaluate nexus opinions, making strong IMOs more influential than ever. There are no new presumptive secondary conditions for PTSD as of 2026 — nexus letters remain required for all of the conditions listed in this guide.
Next Steps: File Your Secondary Claims Today
If you have service-connected PTSD and you're living with hypertension, sleep apnea, GI disorders, erectile dysfunction, migraines, or any of the other conditions in this guide — there's a very real chance you're owed thousands of dollars per month in additional VA compensation that you're not receiving.
The path forward is straightforward:
- Identify which secondary conditions apply to you. Review the table and condition cards above. If you have a diagnosis, it may qualify.
- File an Intent to File today to lock in your effective date for all future claims.
- Get a nexus letter from a qualified provider — or use our generator to start drafting the framework.
- File your secondary claims using claim.vet's guided claim builder.
- If denied, file a Supplemental Claim with stronger evidence. Most initial secondary claim denials are reversible.
Don't Leave VA Benefits on the Table
Most veterans with PTSD qualify for $500–$1,500/month more through secondary conditions. Use claim.vet to file correctly — free, with no account required.
Start My Secondary Claim → Generate My Nexus LetterRelated Resources on claim.vet
- → Hypertension Secondary to PTSD — Complete Guide
- → Sleep Apnea Secondary to PTSD — Complete Guide
- → Erectile Dysfunction & SMC-K — What Veterans Need to Know
- → Insomnia Secondary to PTSD/TBI — Rating & DC 6847 Issues
- → VA Disability Ratings for PTSD: The Complete 2026 Guide
- → How to Get a Nexus Letter That Actually Works
- → Secondary Service Connection: Everything Veterans Need to Know