Army MOS
VA Disability for 13B (Cannon Crewmember)
Army 13B (Cannon Crewmember) is a job that typically involved hazardous noise, blast and overpressure, heavy loads and impact, and repetitive strain, vibration, and posture. That pattern is why veterans who held it commonly claim conditions like tinnitus, hearing loss, back or neck strain, and limited knee flexion. This page covers the general pattern for the job, not your record.
Typical exposures for 13B
These are the general hazards that came with the job. Your own exposure depends on your units, deployments, and duties.
- Hazardous noise
Weapons fire, engines, aircraft, generators, or machinery at levels linked to tinnitus and hearing loss.
- Blast and overpressure
Explosions, artillery, breaching, and demolitions. Repeated blast exposure is tied to concussion, headaches, and hearing damage.
- Heavy loads and impact
Rucks, body armor, lifting, carrying patients or ammunition, and hard landings that wear on the back, knees, and feet.
- Repetitive strain, vibration, and posture
The same motion thousands of times, long hours seated in vehicles or at a console, or constant vibration from vehicles and tools.
- Burn pits and airborne hazards
Smoke and fine particulate from open-air burn pits, dust, and sand during Southwest Asia and post-9/11 deployments. About this exposure →
Conditions commonly associated with 13B
Veterans who held this job commonly claim the conditions below. Each still needs a current diagnosis and evidence linking it to your service.
- TinnitusDC 6260Frequently claimed
Artillery fire - among highest noise exposure in military
- Hearing lossDC 6100Frequently claimed
Howitzer fire, concussive blast repeatedly
- Lumbosacral/cervical strainDC 5237Frequently claimed
Loading artillery rounds (95+ lb projectiles)
- Knee, limitation of flexionDC 5260Frequently claimed
Heavy lifting, running ammunition
- Shoulder, limitation of motionDC 5201Frequently claimed
Overhead loading, ramming rounds
- PTSDDC 9411Also commonly claimed
Fire missions, combat operations, indirect fire
- Migraine headachesDC 8100Also commonly claimed
Repetitive blast overpressure from howitzer fire
- Ankle, limited motionDC 5271Also commonly claimed
Uneven terrain, ruck marches, and obstacle-course training throughout service
- Foot injuries, otherDC 5284Also commonly claimed
Boots, marching, long days on feet, cumulative across any military role
PACT Act presumptives for 13B veterans
Many soldiers in this job deployed to Southwest Asia or the post-9/11 theater. Under the PACT Act, the presumption is based on where and when you served, not on your job title. It covers Gulf War service on or after August 2, 1990 in places such as Bahrain, Iraq, Kuwait, Oman, Qatar, Saudi Arabia, Somalia, and the United Arab Emirates, and post-9/11 service on or after September 11, 2001 in places such as Afghanistan, Djibouti, Egypt, Jordan, Lebanon, Syria, Uzbekistan, and Yemen.
If you served in a qualifying location and are later diagnosed, the VA treats certain conditions as presumed service-connected, so you do not have to prove the exposure caused them. The list includes asthma diagnosed after service, chronic bronchitis, COPD, chronic rhinitis, chronic sinusitis, constrictive bronchiolitis, and a range of cancers. Holding this job does not by itself mean you have any of them.
Full PACT Act burn pit list and locations → Gulf War Illness →
Earlier eras carry their own location-based presumptives, such as Agent Orange and Camp Lejeune water contamination.
This is the general pattern, not your claim. Most veterans held more than one job, served at specific bases, and worked specific aircraft or ships. Which conditions fit you, how they combine, and what they rate together depends on that full record.
Get your version in the app
See your personalized Claim Intel, your exact conditions merged across every MOS you held, your specific exposures cross-referenced, and your combined rating in the app. The combined-rating calculator is free with no account. Claim Intel is part of VA Ready Pro.
Free combined-rating calculator → Find a free accredited VSO →
Common questions
Does the VA have a list of conditions for 13B?
No. The VA does not keep a list of disabilities by MOS, AFSC, or rating. It decides each claim on your own service records, medical evidence, and exam. What a job typically exposed people to can help explain how a condition started, which is why knowing the pattern for 13B Cannon Crewmember is useful.
What conditions do 13B veterans commonly claim?
Veterans who served as Army 13B (Cannon Crewmember) commonly claim conditions such as tinnitus, hearing loss, back or neck strain, limited knee flexion, limited shoulder motion, and PTSD. Each one still needs its own diagnosis and a link to service.
Are 13B veterans covered by the PACT Act?
The PACT Act presumptions are based on where and when you served, not on your job. If you served in a qualifying Gulf War or post-9/11 location, certain respiratory conditions and cancers are presumed service-connected.
Other Army jobs
More from VA Ready: all MOS pages · ratings by condition · toxic exposures
This page is for general informational purposes only and is not legal or medical advice. It describes what a job typically involved, not what any one veteran experienced, and the VA does not keep a list of conditions by MOS, AFSC, or rating. The VA decides service connection and ratings from your own records, evidence, and exam. VA Ready is not affiliated with the U.S. Department of Veterans Affairs. For free help filing, work with a
VA-accredited VSO.