VA rating for back pain: spine formula and codes
By BilateralFactor Editorial Team · Published June 9, 2026
The short answer
VA rates most back conditions under the General Rating Formula for Diseases and Injuries of the Spine in 38 CFR §4.71a. The formula uses thoracolumbar range of motion (ROM) as the primary yardstick. Ratings run from 10% to 100% depending on forward flexion loss, combined ROM, muscle spasm, or ankylosis. Intervertebral disc syndrome (IVDS) has an alternative path based on incapacitating episodes.
One critical rule: the formula states that “objective neurologic abnormalities, including but not limited to bowel or bladder impairment” are rated separately under an appropriate diagnostic code. Leg radiculopathy secondary to your back condition can stack on top of the spine rating. That is not double-counting.
Diagnostic codes for back conditions
All three codes below are rated under the same General Rating Formula. The code you receive depends on the diagnosis, not the formula tier.
- DC 5237 (lumbosacral or cervical strain): The most common code for low back pain.
- DC 5242 (degenerative arthritis of the spine / degenerative disc disease) (other than IVDS): Rated under the General Rating Formula.
- DC 5243 (intervertebral disc syndrome, IVDS): Rated under the General Rating Formula or the incapacitating episodes alternative, whichever produces the higher evaluation.
The General Rating Formula: ROM tiers
The table below reflects the thoracolumbar spine thresholds verified from 38 CFR §4.71a, retrieved 2026-06-09. Any single criterion in a row is sufficient to reach that rating level.
| Rating | Forward flexion (thoracolumbar) | OR combined ROM | OR other criterion |
|---|---|---|---|
| 40% | 30° or less | — | Favorable ankylosis of the entire thoracolumbar spine |
| 20% | Greater than 30° but not greater than 60° | Not greater than 120° | Muscle spasm or guarding severe enough to result in abnormal gait or abnormal spinal contour (scoliosis, reversed lordosis, abnormal kyphosis) |
| 10% | Greater than 60° but not greater than 85° | Greater than 120° but not greater than 235° | Muscle spasm, guarding, or localized tenderness not resulting in abnormal gait or abnormal contour; or vertebral body fracture with loss of 50% or more of height |
| 50% | — | — | Unfavorable ankylosis of the entire thoracolumbar spine |
| 100% | — | — | Unfavorable ankylosis of the entire spine |
“Combined ROM” for the thoracolumbar spine adds forward flexion, extension, right lateral flexion, left lateral flexion, right rotation, and left rotation.
Normal thoracolumbar forward flexion is about 90 degrees. A veteran who can only flex to 55 degrees reaches the 20% tier on forward flexion alone, even if no other finding is present.
Painful motion matters
38 CFR §4.59 states that joints that are actually painful on motion are entitled to at least the minimum compensable rating. For the spine, that means documented pain during the ROM exam can support a 10% rating even if the raw arc technically clears the 85-degree threshold. The examiner must document pain response, not just the endpoint measurement.
If your back is worse on bad days than it was during the C&P exam, a lay statement describing functional loss during flare-ups is part of the record VA must consider under §4.126.
IVDS alternative: incapacitating episodes
For DC 5243, VA must rate the condition under the General Rating Formula and under the incapacitating episodes schedule, then assign whichever is higher.
The regulation defines an incapacitating episode as “a period of acute signs and symptoms due to intervertebral disc syndrome that requires bed rest prescribed by a physician and treatment by a physician.” Self-rest does not count. The tiers based on total incapacitating weeks in the past 12 months are:
| Weeks of incapacitating episodes | Rating |
|---|---|
| At least 6 weeks | 60% |
| At least 4 weeks but less than 6 | 40% |
| At least 2 weeks but less than 4 | 20% |
| At least 1 week but less than 2 | 10% |
If your IVDS flares badly enough for a physician to prescribe bed rest multiple times a year, add up those weeks. Four weeks of physician-prescribed bed rest in one year supports a 40% rating under the episodes path, potentially higher than the ROM path would yield.
Radiculopathy: a separate rating on top
The General Rating Formula explicitly requires VA to rate objective neurologic abnormalities separately. If your lumbar disc disease causes radiculopathy (nerve root compression producing leg pain, numbness, or weakness), that radiculopathy is rated under the peripheral nerve schedule in 38 CFR §4.124a on top of your spine rating.
Both legs can carry separate radiculopathy ratings, and if both are service-connected at 10% or higher, the bilateral factor under 38 CFR §4.26 applies to that leg pair.
Worked example: 40% back + bilateral leg radiculopathy
A veteran has:
- DC 5242 lumbar spine: 40%
- DC 8520 right leg radiculopathy: 20%
- DC 8520 left leg radiculopathy: 10%
Step 1: bilateral pair for the two leg radiculopathies
Both legs are service-connected at compensable ratings, so the bilateral factor applies first.
Combine 20% and 10%: 20 + (10 × 80/100) = 20 + 8 = 28
Add the bilateral factor (10% of 28): 28 + 2.8 = 30.8, rounded to 31%
The bilateral leg group is treated as a single 31% disability.
Step 2: combine the spine rating with the bilateral group
Combine 40% and 31%: 40 + (31 × 60/100) = 40 + 18.6 = 58.6, rounded to 59
Step 3: convert to final rating
59 converts to the nearest 10: 60%
Without the bilateral factor, the leg pair would combine to 28, rounding to 27 after adding non-bilateral, and the final math shifts. The bilateral factor here raises the intermediate value enough that the final rating is 60% rather than 50%. Use the VA Combined Ratings Calculator to check your own numbers.
If your decision letter shows a lower combined rating than this math produces, see what to do after a VA decision you disagree with.
C&P exam prep for back conditions
Bring all imaging: X-rays, MRI reports, CT scans. The examiner will measure ROM with a goniometer. Describe your pain level at its worst, not just on a good day. Mention any radiating symptoms into your legs. That is the examiner’s cue to evaluate radiculopathy separately. If you have had physician-prescribed bed rest for disc flare-ups, bring those treatment notes.
For related topics:
- Radiculopathy VA rating
- How VA combined ratings work
- The bilateral factor explained
- VA Combined Ratings Calculator
This page explains schedular rating math only. Individual VA decisions depend on service-connection evidence, exam findings, and claim-specific facts. See our disclaimer for the limits of this information.
Frequently asked questions
What is the most common VA rating for back pain?
10% and 20% are the most common schedular ratings for lumbar conditions. A 10% rating requires forward flexion limited to 85 degrees or less (but greater than 60 degrees), or muscle spasm and tenderness without abnormal gait. A 20% requires forward flexion of 60 degrees or less (but greater than 30 degrees), or combined thoracolumbar ROM of 120 degrees or less.
Can VA rate radiculopathy on top of a back rating?
Yes. The General Rating Formula for Diseases and Injuries of the Spine expressly states that objective neurologic abnormalities are evaluated separately under an appropriate diagnostic code. A lumbar spine rating and a radiculopathy rating for the same leg are not pyramiding. They measure distinct disabilities.
What counts as an incapacitating episode under DC 5243?
The regulation defines an incapacitating episode as a period of acute signs and symptoms due to intervertebral disc syndrome that requires bed rest prescribed by a physician and treatment by a physician. Self-imposed rest does not qualify. You need physician documentation of the prescribed bed rest and the duration.
Does the bilateral factor apply to back conditions?
Not to the back rating itself, which is a midline structure. The bilateral factor applies to paired extremity disabilities (such as radiculopathy affecting both legs secondary to the back condition). If both legs have service-connected radiculopathy at 10% or higher, combine them as a bilateral pair first, add 10%, then combine the result with the spine rating.
How does VA measure thoracolumbar forward flexion?
VA examiners use a goniometer with the veteran standing. Normal thoracolumbar forward flexion is about 90 degrees. The examiner measures the endpoint of motion, notes any pain or guarding during the arc, and should also assess motion after repetitive use and during flare-up conditions per §4.126.
Sources
- 38 CFR §4.71a, Schedule of ratings: musculoskeletal system — Cornell LII / eCFR, retrieved 2026-06-09
- 38 CFR §4.26, Bilateral factor — eCFR, retrieved 2026-06-09
- 38 CFR §4.25, Combined ratings table — eCFR, retrieved 2026-06-09
- About VA disability ratings — VA.gov, retrieved 2026-06-09
This article is informational only and is not legal advice. See our editorial policy.