VA Diagnostic Code 5237: Lumbosacral Strain Rating Criteria — Forward Flexion Thresholds and C&P Exam Guide
Know Your Lumbar Spine Rating Thresholds
Forward flexion of 30–60° qualifies for 10%. Pain at any point in ROM qualifies for minimum 10% under §4.59. Secondary radiculopathy can add 10–80% additional compensation.
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Why Lumbosacral Strain Claims Are the Most Under-Rated in the VA System
Low back pain (lumbosacral strain, rated under DC 5237) is the most common musculoskeletal VA claim — and also one of the most frequently under-rated. The reason: veterans don't know the exact forward flexion degree thresholds the examiner is measuring, and they miss secondary conditions — particularly lumbar radiculopathy — that can add substantial additional compensation.
DC 5237 covers lumbosacral strain, low back pain, and degenerative changes of the lumbar spine (when not meeting the more specific DC 5242 criteria). The rating is based primarily on forward flexion range of motion — how far you can bend forward from the waist — using a goniometer at your C&P exam.
Key threshold: Normal forward flexion is approximately 90°. The critical cut-points in 38 CFR Part 4 are 60°, 30°, and 15°. Knowing these numbers before your exam is the difference between a 0% and a 20–40% rating.
DC 5237 — Lumbosacral Strain Rating Thresholds
The examiner measures your active forward flexion (bending forward at the waist) with a goniometer or inclinometer. Normal forward flexion is 90°. Ratings are assigned based on measured degrees at the point where pain begins or motion stops:
| Forward Flexion (degrees) | VA Rating | Monthly Compensation (approx.)* |
|---|---|---|
| Greater than 60° (full or near-full range) | 0% | $0 (service-connected, no compensation) |
| Greater than 30° but not more than 60° | 10% | ~$175 |
| Greater than 15° but not more than 30° | 20% | ~$343 |
| 15° or less | 40% | ~$731 |
| Unfavorable ankylosis of entire thoracolumbar spine | 50% | ~$958 |
| Unfavorable ankylosis (forward flexion 30°+ or severe deformity) | 100% | ~$3,737 |
*Approximate single veteran rates as of 2026. Actual compensation varies by dependent status.
Critical gap at 30°: Veterans at exactly 30° are rated at 20%, not 40%. The jump to 40% requires 15° or less. If your examiner measures 30° but you have significant functional impairment, pursue an IMO (Independent Medical Opinion) and document the full functional impact under §4.40 and §4.45.
38 CFR §4.59 — The Painful Motion Rule
This is the rule most veterans never learn, and it frequently represents the difference between a 0% and a 10% rating:
Under 38 CFR §4.59, if you experience pain at any point during range of motion testing — even before reaching a threshold that triggers a percentage rating — VA must assign at minimum a 10% rating. A spine condition that causes pain cannot be rated at 0%.
At your C&P exam: When the examiner asks you to bend forward, if you feel any pain or discomfort at any point during the movement, say so clearly and immediately. "I feel pain at [degrees]" establishes the record. Examiners are required to note pain on motion, but you must verbalize it.
Flare-Up Functional Loss — §4.40 and §4.45
If your back condition causes flare-ups that temporarily increase your functional loss beyond what can be measured at a single exam, VA regulations at §4.40 and §4.45 require examiners to consider this in their rating. A veteran who can achieve 50° forward flexion at the exam but drops to 20° during a flare-up can document the flare-up ROM and request it be factored into the rating.
Ask your treating physician to document: (1) how often flare-ups occur, (2) what triggers them, (3) how much ROM decreases during a flare, and (4) how long the flare-up typically lasts.
Secondary Claims From Lumbosacral Strain
The secondary conditions that flow from lumbar spine impairment under 38 CFR §3.310 represent the most significant rating opportunity for most veterans with back conditions:
DC 8520 — Radiculopathy / Sciatica (Most Common Secondary)
If your lumbar condition compresses nerve roots and causes pain, numbness, or weakness that radiates into your legs, you qualify for a separate DC 8520 (or DC 8521 for the other leg) rating in addition to your DC 5237 rating. Ratings: 10% (mild), 20% (moderate), 40% (moderately severe), 60% (severe), 80% (complete paralysis). Each leg is rated separately; bilateral factor applies.
DC 5271 — Hip Limitation (Gait Compensation Secondary)
Altered gait from lumbar spine impairment frequently causes secondary hip pathology. If you have hip limitation and lumbar spine impairment, document the causal link between the two.
DC 5260/5261 — Knee ROM Changes (Gait Compensation)
The same gait compensation mechanism that affects hips can cause secondary knee ROM changes, particularly in veterans with combined lumbar and hip pathology.
TDIU Under 38 CFR §4.16
If your lumbar spine alone reaches 60%, or your combined rating reaches 70% with lumbar at 40%, you may qualify for Total Disability Individual Unemployability (TDIU) — which pays at the 100% rate. Lumbar-primary TDIU claims are among the most successful because the functional impact of severe back impairment on physical employment is well-documented.
Bilateral factor opportunity: If lumbar spine causes radiculopathy in both legs (both DC 8520 and DC 8521), the combined rating for the two radiculopathy conditions receives an additional 10% bilateral factor before final combined calculation. This can push a 70% combined to 77% (rounded to 80%).
What the C&P Examiner Is Measuring
Understanding what the examiner is doing during your C&P exam allows you to cooperate fully and ensure accurate documentation:
- Active forward flexion: Bend forward as far as you can go. The point where motion stops (due to pain or anatomical limitation) is measured. Say "I'm stopping because of pain" if applicable.
- Active extension: Lean backward. Normal is 30°. Measured separately but contributes to the "combined ROM" threshold (170° or less triggers the same 20% rating as 30° forward flexion).
- Lateral flexion (each side): Lean to each side. Normal is 30° per side. Part of the combined ROM calculation.
- Rotation (each direction): Rotate your upper body. Normal is 30° per direction. Also part of combined ROM.
- Pain documentation: At each motion, if pain occurs, state it explicitly. The examiner notes this. It supports the §4.59 painful motion claim.
Combined ROM threshold: If the sum of all lumbar ROM measurements (forward flexion + extension + bilateral lateral flexion + bilateral rotation) is 120° or less, this triggers the same 20% rating as forward flexion of 30° or less — regardless of individual measurements. This benefits veterans with global limitation even if no single motion is severely limited.
Imaging Evidence and DBQ Documentation
Your VA treatment records and private MRI/X-ray reports should document:
- Degenerative disc disease at specific levels (L4-L5, L5-S1 are most common)
- Disc herniation or protrusion with nerve root compression
- Facet arthropathy or stenosis contributing to limitation
- Spondylolisthesis or spondylosis
If your imaging shows structural findings that would explain significant limitation but your C&P ROM measurement was taken on a "good day," your treating physician's records showing worse functional ROM on other dates are essential supporting evidence.
38 CFR §3.310 — Secondary Service Connection
To establish secondary service connection for radiculopathy, hip, or knee conditions, you need a nexus letter from a physician stating that the secondary condition is "at least as likely as not" caused or aggravated by your service-connected lumbar spine condition. This letter is the key document that unlocks additional ratings.
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The full VA Claims guide covers DC 5237 thresholds, the §4.59 painful motion rule, secondary radiculopathy nexus evidence, and TDIU qualification criteria for lumbar-primary claims.
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Frequently Asked Questions — DC 5237 Lumbosacral Strain
Can I be rated under both DC 5237 and DC 5242 for the same back?
No. VA rates your lumbar spine under a single diagnostic code. DC 5237 (lumbosacral strain) and DC 5242 (degenerative disc disease) rate the same anatomical location; VA will apply the code that results in the higher rating. The criteria for both are nearly identical — forward flexion ROM — so the distinction is usually academic. However, if you have a formal DDD diagnosis on imaging, ensure the C&P examiner documents that condition to support a DC 5242 claim as an alternative.
My C&P examiner measured my ROM at 45° but my back hurts more than that suggests. What can I do?
File for an increase and submit a private DBQ (Disability Benefits Questionnaire) from your treating physician documenting your functional ROM, including during flare-ups. The §4.40 and §4.45 provisions require VA to consider functional loss, not just the measurement taken at the exam. A buddy statement from a family member documenting your day-to-day limitations also supports the claim.
How does TDIU work with a lumbar spine claim?
If your lumbar spine alone is rated at 60%+, or if your combined rating is 70%+ with lumbar at 40%+, you qualify for TDIU consideration under 38 CFR §4.16. TDIU pays at the 100% rate. The key evidence is documentation from employers or vocational rehabilitation specialists showing that your back condition prevents you from maintaining substantially gainful employment (earning above the federal poverty line).
My radiculopathy is in both legs. Does that mean two separate ratings?
Yes. Right leg radiculopathy (DC 8520) and left leg radiculopathy (DC 8521) are rated separately, then combined. Because they affect both extremities, a 10% bilateral factor applies to the combined rating before the final calculation. For example, 20% right + 20% left = 36% combined, then +10% bilateral factor = 39.6%, rounded to 40%.