Diagnostic Code 5240 · 38 CFR §4.71a
Ankylosing spondylitis is a chronic inflammatory condition that primarily targets the spine. Over time the vertebrae can fuse together, reducing flexibility and creating a hunched-forward posture. It often begins in the sacroiliac joints and moves upward. Many veterans develop symptoms during or shortly after service due to physical demands and repetitive spinal stress.
| Rating | Criteria |
|---|---|
| 20% | |
| 40% | |
| 100% |
Rheumatology records showing diagnosis and treatment history, Imaging such as X-rays or MRI demonstrating sacroiliitis or vertebral fusion, Range of motion measurements from recent medical evaluations, Documentation of flare-ups including frequency, duration, and functional impact, Statements describing how spinal stiffness affects daily activities and work