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What a secondary claim actually requires
- A current diagnosis. Named by a doctor, in your records.
- A nexus. That is the medical link — a written opinion from a provider saying your
service-connected spine condition proximately caused or aggravated this condition. VA
usually will not connect the dots for you.
- One claim per condition. File on VA Form 21-526EZ, Application for Disability
Compensation and Related Compensation Benefits
(va.gov/find-forms/about-form-21-526ez).
Do not shotgun it. Filing eighteen conditions with no nexus evidence gets you eighteen
denials and burns the effective date on conditions you could have won later with an opinion in
hand.
Aggravation counts too. 38 CFR 3.310(b): if your service-connected back makes a condition
you already had worse, VA pays for the worsening. But it only pays the amount above a
baseline — and that baseline has to be documented by medical evidence created before
the worsening started, or the earliest records after it, with the disease's own natural progression
subtracted. Pre-existing knee arthritis worsened by a limp needs old imaging or old treatment
records, or it fails on baseline even with a good nexus letter.
✅ Diagnosis. Nexus. One claim each.
The four traps
Do not claim these on top of your spine rating
38 CFR 4.14 bars rating the same problem twice under a second name. VA calls it
pyramiding. These four are automatic denials — and each has a better door.
- Degenerative arthritis of the spine / degenerative disc disease. That is diagnostic code
5242, rated under the very same General Rating Formula that already produced your spine rating.
Instead: degenerative arthritis of a different joint — knee, hip —
caused or worsened by your back or your altered walk is a real secondary claim.
- Sacroiliac joint dysfunction. Diagnostic code 5236, also inside the spine series
5235–5243, also under the same formula.
Instead: if sacroiliac pain is cutting down how far your back bends,
file a claim for an increase on the spine rating.
- Muscle spasms. Spasm is already written into the spine criteria — 10 percent for
"muscle spasm, guarding, or localized tenderness not resulting in abnormal gait or abnormal spinal
contour."
Instead: see the increase panel below.
- Gait abnormality. Abnormal walk is a criterion at the 20 percent level of the
spine formula — "muscle spasm or guarding severe enough to result in an abnormal gait or abnormal
spinal contour such as scoliosis, reversed lordosis, or abnormal kyphosis."
Instead: if you are rated under 20 percent and your spasm causes a
documented abnormal gait, that is an increase. And an altered gait is the reason you argue a
hip, knee, ankle or foot secondary — it is the theory, not the claim.
✅ Closed door, open window. Use the window.
Money
File an intent to file first. Today.
This is the single cheapest thing on this page and the one most people skip.
Submit
VA Form 21-0966, Intent to File a Claim
(
va.gov/find-forms/about-form-21-0966).
It locks your effective date. If your complete application arrives within
one year, VA treats
the claim as filed on the intent-to-file date (38 CFR 3.155(b)).
Every month between that date and the day you actually file is back pay. Spend six months
gathering nexus opinions without an intent to file and you hand back six months of retroactive
money on every condition VA later grants.
✅ Two minutes now. Months of back pay later.
The big one
Nerve damage is rated separately — and foot drop is 80 percent
Note (1) to the spine formula requires objective neurologic abnormalities to be
rated separately under their own code and combined with your spine rating. They are not swallowed
by it.
Sciatic nerve, diagnostic code 8520 — per leg:
- Mild incomplete paralysis — 10%
- Moderate — 20%
- Moderately severe — 40%
- Severe, with marked muscle wasting — 60%
- Complete paralysis — 80%. VA's own words: "the foot dangles and drops, no active
movement possible of muscles below the knee, flexion of knee weakened or (very rarely) lost."
This is where lists get it wrong. Foot drop coming off a lumbar spine condition is most
often complete sciatic paralysis — DC 8520, 80 percent per leg. Code 8521 (the common
peroneal nerve) tops out at 40 percent and applies only when the deficit is confined to that one
nerve. If your decision capped you at 40 percent for a dangling foot, read the code it was rated
under.
Both legs? The bilateral factor under 38 CFR 4.26 adds to the combined figure.
Bowel or bladder trouble? Note (1) also requires associated bowel or bladder impairment to be
evaluated separately under its own code. That is an added rating, not a favor.
✅ Separate ratings. Not absorbed.
How to word it
Claim the diagnosis, not the symptom
There is no diagnostic code for "knee pain" or "lower extremity pain." File the
condition your provider names.
But pain is not worthless. 38 CFR 4.59: "It is the intention to recognize actually painful,
unstable, or malaligned joints, due to healed injury, as entitled to at least the minimum
compensable rating for the joint." 38 CFR 4.40 and 4.45 require VA to account for functional loss
and pain on use. Make sure your exam records pain on motion.
Codes to name on the form:
Plantar fasciitis — DC 5269 (10/20/30) ·
Ankle limitation of motion — DC 5271 (10/20/30) ·
Knee recurrent subluxation or instability — DC 5257 (10/20/30) ·
Hip limitation of flexion of thigh — DC 5252 (10/20/30/40) ·
Spine — DC 5235–5243, all one formula.
✅ A name beats a symptom every time.
Sleep and mood
Chronic pain does not stay in your back
- Depression and anxiety secondary to chronic spine pain are filed the same way as any
other secondary: diagnosis, plus a nexus opinion, on Form 21-526EZ.
- Chronic sleep impairment is not its own code, but it is plainly compensable — 38 CFR
4.130, the rating formula for mental disorders, lists "chronic sleep impairment" word for word in
the 30 percent criteria. Have your provider write it into the mental health record.
- Sleep apnea is separately ratable under DC 6847. That one needs a sleep study.
If any of this is heavier than paperwork today — 988, press 1. You do not need to be
enrolled in anything.
✅ Get it in the record, in those words.
Money
Erectile dysfunction: the 0 percent that pays
Diagnostic code 7522 is "Erectile dysfunction, with or without penile deformity,"
and it is rated 0 percent by rule. That is the expected outcome, not a loss.
The code carries a footnote requiring VA to review you for special monthly compensation
under 38 CFR 3.350. ED granted as secondary establishes loss of use of a creative organ, which pays
SMC-K — a flat monthly amount added on top of your regular compensation, at any rating from
0 to 100 percent. VA notes a veteran may hold one to three SMC-K awards.
✅ Zero percent, real money.
Not a secondary
When the back itself is worse: file for an increase
- Spasm now causing an abnormal gait or abnormal spinal contour, and you are rated below 20
percent — that is the 20 percent criterion. File for an increase.
- Intervertebral disc syndrome, DC 5243, has a second scoring method: the Formula for
Rating IVDS Based on Incapacitating Episodes, counted over the past 12 months — at least 1 but
under 2 weeks 10%; at least 2 but under 4 weeks 20%; at least 4 but under 6 weeks
40%; at least 6 weeks 60%. VA must rate you under whichever method gives the higher
number.
✅ Higher of the two. Make them run both.
Money
TDIU — paid at 100 percent without a 100 percent rating
Total Disability based on Individual Unemployability, 38 CFR 4.16. If service-connected
conditions keep you from holding substantially gainful work, VA can pay you at the 100 percent rate.
- One disability at 60 percent is enough on its own — and 4.16(a) says several things count
as one disability for this: disabilities of one or both lower extremities including the
bilateral factor, disabilities from a common cause or a single accident, and disabilities affecting
a single body system.
- That matters here. A lumbar spine rating plus radiculopathy in both legs, all flowing from the
same spine pathology, can be treated as one disability. Combined to 60 percent that way, you meet the
single-disability test without ever reaching a 70 percent combined rating.
- Or one disability at 40 percent or more with enough additional disability to reach 70
percent combined.
- Below the percentages and still unemployable? 4.16(b) requires your case to be referred
for extraschedular consideration. Ask for it by name.
✅ The math is not always the obvious math.
If it comes back denied
Three routes, and one clock nobody explains
"No deadline" is not the whole truth. A Supplemental Claim has no filing deadline, but 38 CFR
3.2500 sets the effective date no earlier than the day VA receives it if you file more than a year
after the decision. Keep filing in succession within one year and your original effective date holds.
Take eighteen months to get a nexus letter and you keep the grant but lose every month of back pay
behind it. File within one year.
✅ Win it late, still get paid from the start.
Help that is free
You do not have to pay anyone to file
- An accredited Veterans Service Organization representative will help you prepare and file
a claim at no charge. Not a discount — no charge.
- An accredited attorney or claims agent may charge a fee, but only after VA issues its
initial decision on the claim. Under 38 CFR 14.636 a fee up to 20 percent of past-due benefits is
presumed reasonable.
- Anyone charging you to file an original claim before a decision exists is outside the rules.
Walk.
✅ Free help exists. Use it first.