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Evidence checklist

Thoracic Outlet Syndrome

DC 8599-851038 CFR § 4.124aNeurological

Evidence strength

Mark what you already have below and your evidence strength appears here.

Target
Saved locally
01

Specialist opinion

Highest value0 of 3 collected
Vascular studies (duplex ultrasound, CTA, MRA) confirming neurovascular compressionCritical

Imaging studies documenting subclavian artery or vein compression with positional maneuvers. Required for arterial or venous TOS; neurogenic TOS may have normal vascular imaging.

Private provider · independent opinion
EMG/nerve conduction study documenting lower brachial plexus involvementCritical

Electrodiagnostic testing documenting C8-T1 nerve root or lower trunk brachial plexus involvement with reduced ulnar and medial antebrachial cutaneous sensory amplitudes.

Private provider · independent opinion
Nexus opinion linking TOS to service (at least as likely as not)Critical

Medical opinion connecting TOS to in-service cervical rib, repetitive overhead military duties, rucksack or load-bearing shoulder straps, or direct trauma to the shoulder/neck area.

Private provider · independent opinion
02

Treatment records

0 of 2 collected
Chest X-ray or CT showing cervical rib or scalene anomaly

Imaging documenting a cervical rib, elongated C7 transverse process, or fibromuscular band that compresses the neurovascular bundle.

VA or private records · written request
Treatment records (physical therapy, first rib resection, scalenectomy)

Records of physical therapy, scalene injections, or surgical decompression (first rib resection, cervical rib removal, scalenectomy) with functional outcomes.

VA or private records · written request
03

Lay statements

0 of 2 collected
Buddy statement from spouse, family, or fellow service member

A written statement from someone who can describe observable symptoms and how your condition affects daily life.

You or a witness · VA Form 21-4138 or 21-10210How to get this →
Personal statement describing symptoms and functional impact

Your own written account of how this condition affects your daily activities, work, and relationships. Describe your worst days.

You or a witness · VA Form 21-4138 or 21-10210How to get this →
04

Benefits questionnaire

0 of 1 collected
Completed DBQ Peripheral Nerves ConditionsCritical

VA standardized form capturing brachial plexus and peripheral nerve deficits from TOS.

Provider-completed · VA DBQ formHow to get this →
05

Service records

0 of 1 collected
Service treatment records (STRs)Critical

Military medical records showing in-service treatment, complaints, or injuries related to this condition.

NPRC / milConnect · SF-180
Condition guideRating criteria and what VA looks forBuddy statement builderGuided VA Form 21-10210

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