Primary service-connected condition

DC 8045 — Residuals of traumatic brain injury (TBI)

Also known as: head injury, tbi, traumatic brain injury, Traumatic brain injury residuals, concussion, brain injury, blast injury, IED, memory loss, brain fog, cognitive issues, cognitive decline, traumatic brain injury residuals

Mapped secondary conditions
8

These are commonly claimed secondary connections linked to this primary disability. Use them as a screening tool for conversations with your doctor, VSO, or VA-accredited attorney.

Primary Secondary

Residuals of traumatic brain injury (TBI) Major depressive disorder

9434
Strong

How the connection is commonly explained

TBI directly affects brain chemistry and mood regulation.

Filing tip

Ask your doctor to clearly state that the secondary condition is at least as likely as not caused or aggravated by the primary service-connected condition. For this pairing, ask the provider to explain how residuals of traumatic brain injury (tbi) led to or worsened major depressive disorder.

Relationship type: Caused by
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Primary Secondary

Residuals of traumatic brain injury (TBI) Migraine

8100
Strong

How the connection is commonly explained

Post-traumatic headaches are one of the most common TBI sequelae.

Filing tip

Ask your doctor to clearly state that the secondary condition is at least as likely as not caused or aggravated by the primary service-connected condition. For this pairing, ask the provider to explain how residuals of traumatic brain injury (tbi) led to or worsened migraine.

Relationship type: Caused by
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Primary Secondary

Residuals of traumatic brain injury (TBI) Posttraumatic stress disorder

9411
Strong

How the connection is commonly explained

The traumatic event causing TBI frequently also causes PTSD.

Filing tip

Ask your doctor to clearly state that the secondary condition is at least as likely as not caused or aggravated by the primary service-connected condition. For this pairing, ask the provider to explain how residuals of traumatic brain injury (tbi) led to or worsened posttraumatic stress disorder.

Relationship type: Caused by
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Primary Secondary

Residuals of traumatic brain injury (TBI) Grand mal

8910
Moderate

How the connection is commonly explained

TBI increases the risk of post-traumatic epilepsy and seizures.

Filing tip

A nexus letter and treatment records explaining the progression from the primary condition to the secondary condition can make a big difference. For this pairing, ask the provider to explain how residuals of traumatic brain injury (tbi) led to or worsened grand mal.

Relationship type: Caused by
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Primary Secondary

Residuals of traumatic brain injury (TBI) Major or mild neurocognitive disorder due to another medical condition or substance/medication-induced major or mild neurocognitive disorder

9326
Moderate

How the connection is commonly explained

TBI can cause lasting cognitive impairment.

Filing tip

A nexus letter and treatment records explaining the progression from the primary condition to the secondary condition can make a big difference. For this pairing, ask the provider to explain how residuals of traumatic brain injury (tbi) led to or worsened major or mild neurocognitive disorder due to another medical condition or substance/medication-induced major or mild neurocognitive disorder.

Relationship type: Caused by
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Primary Secondary

Residuals of traumatic brain injury (TBI) Retinopathy or maculopathy not otherwise specified

6006
Moderate

How the connection is commonly explained

TBI can damage visual processing pathways and lead to chronic vision problems.

Filing tip

A nexus letter and treatment records explaining the progression from the primary condition to the secondary condition can make a big difference. For this pairing, ask the provider to explain how residuals of traumatic brain injury (tbi) led to or worsened retinopathy or maculopathy not otherwise specified.

Relationship type: Caused by
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Primary Secondary

Residuals of traumatic brain injury (TBI) Sleep Apnea Syndromes

6847
Moderate

How the connection is commonly explained

TBI can cause neurological changes that affect breathing during sleep.

Filing tip

A nexus letter and treatment records explaining the progression from the primary condition to the secondary condition can make a big difference. For this pairing, ask the provider to explain how residuals of traumatic brain injury (tbi) led to or worsened sleep apnea syndromes.

Relationship type: Caused by
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Primary Secondary

Residuals of traumatic brain injury (TBI) Tinnitus, recurrent

6260
Moderate

How the connection is commonly explained

Blast injuries that cause TBI also frequently damage hearing and worsen tinnitus.

Filing tip

A nexus letter and treatment records explaining the progression from the primary condition to the secondary condition can make a big difference. For this pairing, ask the provider to explain how residuals of traumatic brain injury (tbi) led to or worsened tinnitus, recurrent.

Relationship type: Caused by
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This condition may also be secondary to

Grand mal
DC 8910
Strong

Seizures can worsen or be caused by TBI — bidirectional

Sleep Apnea Syndromes
DC 6847
Emerging

Sleep apnea worsens TBI recovery and cognitive symptoms.

How to File a Secondary Claim

1. Have your primary condition already service-connected.
2. Get diagnosed with the secondary condition.
3. Get a nexus letter from a doctor linking them.
4. File VA Form 21-526EZ and select the claim as a secondary claim.
5. Attend the C&P exam if one is scheduled.

Disclaimer: Secondary connections shown are based on commonly established medical links. Individual claims require medical evidence. Consult a VSO or VA-accredited attorney.