Flat Feet (Pes Planus)

Across the entire BVA dataset I work from, aggravation claims grant at 25.3 percent, substantially below the 34.2 percent grant rate for non-aggravation claims. The Allen v. Brown framework is structurally hard, the "clear and unmistakable evidence" standard punishes thin pre-service records, and most aggravation claims I look at underperform direct service connection. The aggravation lane is the hardest path.

Except for one condition. Pes planus.

243 of the 903 flat-feet cases in my dataset are filed as aggravation claims. That's 27 percent, the highest aggravation invocation rate of any condition I've analyzed at this scale. And the grant rate on those aggravation claims is 44.9 percent, almost identical to the 43.8 percent grant rate for direct flat-feet claims. The aggravation theory works at parity with direct connection here, and that's the only place in my dataset where it does. This post is about why pes planus is the structural exception, what the entrance-exam notation actually means in practice, how DC 5276 handles the bilateral-versus-unilateral doubling that produces the 50% ceiling, and what the 27-point lay-statement gap (48.5% versus 22.3%) tells me about how to move this claim.

TL;DR

• 903 pes planus cases at the BVA. Granted 37.2% (336), denied 44.9% (405), remanded 17.9% (162).
• Aggravation is the second-most-used connection type at 243 cases. The grant rate on aggravation claims is 44.9%, almost identical to direct's 43.8%.
• DC 5276 has a bilateral-versus-unilateral doubling structure: severe unilateral is 20%, severe bilateral is 30%; pronounced unilateral is 30%, pronounced bilateral is 50%.
• The modal granted rating is 50% (91 cases, the bilateral pronounced tier), with 30% at 88 cases just behind.
• Lay statement quoted in the decision: 48.5% grant when quoted (524 cases) vs 22.3% when not (368). The 26-point gap is one of the largest I've measured.
• 44.5% C&P inadequacy, better than the 52% dataset average. The medical workup for pes planus is more consistent than for most conditions.

903 Cases, and 27 Percent Are Aggravation Claims

In a dataset where aggravation is the structural underperformer, pes planus is the one condition where aggravation claims are the volume story. The connection-type breakdown for the 903 flat-feet cases:

• Direct: 475 cases (43.8% grant)
• Aggravation: 243 cases (44.9% grant)
• Secondary: 48 cases (35.4% grant)
• Presumptive: small remainder

243 aggravation claims is 26.9 percent of the entire pool. Across the wider dataset, aggravation claims are roughly 11 percent of the total. Pes planus runs more than double the typical aggravation invocation rate. And the grant rate at 44.9 percent is actually slightly higher than the direct path at 43.8 percent.

This is unusual enough that I want to sit with it. The standard aggravation claim (a pre-existing condition documented at entrance, alleged to have been worsened by service beyond what natural progression would produce) typically loses at the BVA. The Wagner v. Principi (2004) framework requires the veteran to show that the increase in disability during service was not due to the natural progression of the condition. The "clear and unmistakable evidence" standard for rebutting the presumption of soundness is structurally hard. The whole system tilts against aggravation claims.

Pes planus is the exception, and the reasons are specific enough that they generalize to other conditions only partially.

Allen v. Brown in Practice: The Pes Planus Specialty

Allen v. Brown (1995) established the doctrinal framework that governs aggravation claims. The case held that when a pre-existing condition is aggravated by military service, the veteran is entitled to service connection for the degree of aggravation: the difference between the level of disability at entrance and the level at separation or at the current evaluation, after subtracting whatever worsening would have occurred from natural progression.

That sounds technical. In practice, it produces a three-part test:

• The condition existed prior to service (the entrance examination notation usually proves this)
• The condition increased in severity during service (in-service medical records, separation examination findings, or post-service treatment records can support this)
• The increase was not due to the natural progression of the condition (this is the contested part, usually requiring a medical opinion)

For most conditions, the third element is where aggravation claims die. The natural-progression presumption is the wall, and the veteran has to produce affirmative evidence that the worsening exceeded what would have happened anyway.

Pes planus has a feature that makes the third element easier to prove than for almost any other condition. The biomechanics of marching, running, and bearing weight in military boots over months and years are well-documented as accelerators of arch collapse, plantar fascia strain, and the secondary degenerative changes that come with prolonged abnormal weight distribution. The clinical literature supports the proposition that the physical demands of military service can and do aggravate pes planus beyond the rate of natural progression in a sedentary population.

When a C&P examiner is willing to write that opinion explicitly (that the documented military service, including specific physical training requirements, the weight of standard-issue boots and equipment, and the duration of weight-bearing activity, contributed to the worsening of the veteran's pes planus beyond what natural progression would have produced in a non-military population), the third element is cleared. And the medical literature gives that opinion a foundation.

The 243 aggravation claims with a 44.9% grant rate reflect veterans whose C&P examiners (or private medical opinion writers) produced that kind of opinion. The 55.1% of aggravation cases that didn't grant reflect cases where the opinion wasn't strong enough or the entrance-exam picture was complicated.

DC 5276: The Bilateral-vs-Unilateral Doubling

Pes planus is rated under 38 CFR § 4.71a, Diagnostic Code 5276 (acquired flatfoot). The rating schedule has a structure that doesn't appear in most other rating codes: bilateral-versus-unilateral doubling at the higher tiers.

The DC 5276 tiers

The tiers under DC 5276:

• 0%: Mild. Symptoms relieved by built-up shoe or arch support.
• 10%: Moderate. Weight-bearing line over or medial to great toe, inward bowing of tendo achillis, pain on manipulation and use of the feet.
• 20% (unilateral) / 30% (bilateral): Severe. Objective evidence of marked deformity (pronation, abduction, etc.), pain on manipulation and use accentuated, indication of swelling on use, characteristic callosities.
• 30% (unilateral) / 50% (bilateral): Pronounced. Marked pronation, extreme tenderness of plantar surfaces of the feet, marked inward displacement and severe spasm of the tendo achillis on manipulation, not improved by orthopedic shoes or appliances.

Notice the structural doubling. Severe is 20% unilateral but 30% bilateral. Pronounced is 30% unilateral but 50% bilateral. The bilateral upgrade isn't a small bump. It's a meaningful tier shift built into the rating schedule.

For a veteran with pes planus in both feet, this matters enormously. The same clinical severity that would land at 30% unilaterally lands at 50% bilaterally. And the 50% bilateral pronounced tier is the schedular ceiling for pes planus alone: there is no 70% or 100% under DC 5276.

Rating-tier distribution in the BVA grants

The rating distribution among granted cases in my dataset:

• 10%: 27 cases
• 30%: 88 cases
• 50%: 91 cases (the modal grant tier)

50% as the modal grant tier is a striking result. For most condition cornerstones I've looked at, the modal grant lands somewhere in the lower-to-middle of the schedule. Pes planus modals at the top of its schedule, because most veterans who reach the BVA with a pes planus claim have bilateral severe or pronounced flat feet, the cases where the bilateral doubling produces 50%.

The 27 cases at 10% reflect veterans who got the schedular minimum but appealed for higher. The 88 cases at 30% reflect either bilateral severe or unilateral pronounced. The 91 cases at 50% are bilateral pronounced, the ceiling.

For a single veteran in 2026, the dollar values:

• 10%: $175.51 per month, $2,106 per year
• 30%: $537.42 per month, $6,449 per year
• 50%: $1,102.04 per month, $13,224 per year

The jump from 10% to 30% is roughly $4,300 per year, and the jump from 30% to 50% is another $6,800 per year. The bilateral doubling captures the difference between unilateral severe and bilateral severe, or unilateral pronounced and bilateral pronounced, and that single distinction is worth thousands of dollars annually in compensation.

Why 50% Is the Bilateral Ceiling

The 50% schedular maximum for pes planus under DC 5276 doesn't include a 70% or 100% tier. Veterans whose pes planus produces functional limitations beyond what the 50% rating reflects have to look elsewhere for additional compensation.

The pathways are:

• Separate ratings for secondary conditions (knee arthritis, hip pain, lumbar spine degeneration, plantar fasciitis as a separate code, hallux valgus, hammer toes, hammertoe deformities, calluses) that flow from the altered biomechanics
• Special Monthly Compensation if the bilateral severity meets the loss-of-use threshold for either foot under SMC criteria
• TDIU (total disability based on individual unemployability) if the foot pain and resulting limitations prevent gainful employment

The secondary-condition path is the most-used. Pes planus that causes documented chronic plantar fasciitis can be rated separately under DC 5276 plus a separate rating for plantar fasciitis. Pes planus that contributes to documented knee arthritis can support a secondary connection claim for the knee under DC 5260 or DC 5261. Pes planus that contributes to documented lumbar spine degeneration can support a secondary connection claim under the General Rating Formula.

The chain is:

• Knees affected by altered weight-bearing and gait
• Lumbar spine affected by altered standing and walking mechanics
• Hips affected by compensatory gait patterns
• Plantar fascia affected by direct stress on the altered arch structure

Each of those secondary chains is well-supported in the orthopedic literature. The Board does grant secondary connections from pes planus to knee, back, and plantar fasciitis claims when the medical opinion supports it. The combined-rating math from a 50% pes planus rating plus 20% knee plus 20% back plus 10% plantar fasciitis adds up to a meaningful compensation picture that exceeds the schedular ceiling for pes planus alone.

I want to note this carefully: the secondary chain only works when each link is medically supported. Pes planus does not automatically produce knee arthritis or back degeneration. The link has to be documented in the clinical record, supported by imaging where applicable, and articulated in a medical opinion that explains the biomechanical pathway. The 48 secondary pes planus cases in my dataset reflect this: secondary connection is a real path, but it's used less often than direct or aggravation, and it requires the medical evidence to support it.

The Entrance Exam Trap (and Why It's a Tool, Not a Wall)

The pes planus claim hinges on what the entrance examination says. This is where veterans get confused, because the conventional advice is "if your entrance exam noted pes planus, you can't get service connection because it pre-existed your service."

That advice is wrong. The entrance exam notation is the tool that opens the aggravation lane.

Here's the actual mechanic. If pes planus is noted on the entrance examination, the presumption of soundness under 38 USC § 1111 doesn't apply to that condition. The condition is treated as pre-existing for VA purposes. Direct service connection is unavailable, but aggravation service connection is available.

If pes planus is NOT noted on the entrance examination, the presumption of soundness applies. The condition is treated as having arisen during service unless the VA can rebut the presumption with clear and unmistakable evidence that it pre-existed. If the VA can't rebut the presumption (and the standard is high), the claim proceeds as a direct service-connection claim.

So the entrance exam notation creates a fork in the road:

• Notation present: aggravation claim under § 3.306 and Allen v. Brown
• Notation absent: direct claim under § 3.303

For pes planus specifically, the aggravation lane is mature law, well-supported by the orthopedic literature on military biomechanics, and grants at 44.9 percent in my dataset. The direct lane is also available and grants at 43.8 percent. The two paths are close to parity in outcome, and the choice between them is dictated by what the entrance exam shows.

What this means in practice is that veterans whose entrance exams document pes planus shouldn't conclude they have no claim. They have an aggravation claim, and that claim works for pes planus far better than it works for almost any other condition.

The 243 aggravation cases in my dataset represent veterans who recognized the lane and filed under it. The 405 denied cases overall include some that probably should have been filed as aggravation but were filed as direct (or vice versa) and ran into the soundness-presumption mechanics on the wrong side.

The Aggravation Claim Has 44.9% Grant, Almost as High as Direct

I want to come back to the direct-vs-aggravation comparison because it's the central finding of this analysis.

• Direct service connection: 475 cases, 43.8% grant
• Aggravation: 243 cases, 44.9% grant

The aggravation lane outperforms the direct lane by 1.1 percentage points in this dataset. That's within the margin of statistical noise. I wouldn't claim aggravation is "better" than direct for pes planus. What I would claim is that the two paths are at parity, which is unusual enough to be worth naming.

For comparison, across the wider BVA dataset:

• Direct claims: 34.2% grant
• Aggravation claims: 25.3% grant

A 9-point gap, with aggravation underperforming direct. Pes planus closes that gap almost entirely.

The structural reasons I think this happens:

First, the orthopedic mechanics are well-understood. The connection between military service (especially infantry-coded MOSs, but also any role with sustained weight-bearing) and worsening of pes planus is well-supported in the literature. C&P examiners and Board members both recognize the biomechanical pathway, which makes the aggravation opinion easier to support.

Second, the entrance exam usually has the notation when relevant. For most conditions, pre-service medical records are thin and the "did this exist before service" question is genuinely unclear. For pes planus, the entrance exam is supposed to evaluate foot structure as part of routine military entry screening, and the notation either exists or doesn't. The factual record on the front end is cleaner than for most aggravation claims.

Third, the rating schedule under DC 5276 captures the increment. Allen v. Brown requires rating only the increment of aggravation: the difference between entrance severity and current severity. DC 5276's tier structure (mild, moderate, severe, pronounced, with the bilateral doubling) makes the increment measurable. A veteran entering service with mild pes planus and leaving with pronounced bilateral pes planus has a clearly measurable aggravation increment of 50 percent on the rating schedule.

Fourth, the natural-progression rebuttal is harder for the VA to make. For conditions that progress naturally with age (degenerative arthritis, cataracts, certain cancers), the VA can argue that the worsening during service was natural progression rather than service-induced. For pes planus in a relatively young veteran completing a 4-to-20-year enlistment, the natural-progression argument is weaker. The arch collapse over a 6-year enlistment in an active-duty infantry MOS is harder to attribute to "natural progression" than the same collapse over 30 years in a desk job.

These structural features make pes planus the rare condition where the aggravation framework actually works on its own terms.

Lay Statements Worth 26 Points (48.5% vs 22.3%)

The lay-statement effect on pes planus claims is one of the largest I've measured for any condition:

• Lay statement quoted in the Board decision: 524 cases, 48.5% grant
• Lay statement not quoted: 368 cases, 22.3% grant

That's a 26-point gap. For comparison, the lay-statement gap for chronic fatigue was 7 points, for sinusitis was about 30 points (similar magnitude), and for many condition cornerstones it ranges from 15 to 25 points. Pes planus sits in the higher end of the range.

Why does the lay statement matter so much here? Because the rating criteria under DC 5276 are heavily descriptive. "Pain on manipulation and use." "Characteristic callosities." "Marked pronation." "Extreme tenderness of plantar surfaces." "Severe spasm of the tendo achillis on manipulation." These are qualitative descriptions that the C&P examiner is supposed to document but often doesn't capture with the specificity the higher tiers require.

A lay statement from the veteran that describes the daily symptom picture (the pain after standing for 30 minutes, the difficulty walking on uneven surfaces, the callus patterns on the feet, the way standard footwear fits, the impact on functional activities) can fill the descriptive gap that the clinical record sometimes leaves. The Board reads the lay statement, compares it against the C&P examiner's findings, and uses the combined picture to determine which tier applies.

What the lay statements that grant cases tend to include:

• Specific descriptions of pain intensity and duration (not just "my feet hurt")
• Functional impact ("I can't stand for more than 20 minutes without resting," "stairs are difficult on bad days," "I had to change jobs because I couldn't stay on my feet")
• Treatment history ("I've used custom orthotics for 8 years," "I've been seen by Dr. X for plantar fasciitis flare-ups twice a year")
• Footwear history ("I can't wear standard dress shoes," "I've had to buy specialty footwear since 2019")
• Specific symptom episodes ("On June 14, 2023, I developed a callus that required outpatient care")

What weak lay statements tend to look like:

• Generic complaints ("my feet have been bothering me since service")
• Symptom-only descriptions without functional impact
• Vague timelines ("for many years")
• No reference to treatment or coping strategies

The 524 cases with quoted lay statements and a 48.5% grant rate represent the veterans who described their symptom picture with specificity. The 368 cases without quoted lay statements represent cases where either the lay statement was generic, the veteran didn't submit one, or the Board found nothing in the lay evidence worth engaging with directly.

What I Can't Tell You From This Data

The honest read on what aggregate data doesn't capture.

I can't tell you whether your specific entrance examination notation will be characterized as documenting pre-existing pes planus or as documenting a normal foot structure. The language of the notation matters, and physicians vary in how they describe arch structure on entry exams. "Mild pes planus, asymptomatic" reads differently than "normal arch with slight pronation tendency."

I can't tell you whether your individual military service involved the kind of biomechanical loading that the literature supports as an aggravator. The C&P examiner makes that judgment based on your specific MOS, deployment history, and documented physical demands. An infantry veteran with multiple combat deployments has a different aggravation picture than a clerical veteran in a stateside garrison role, even if both have pes planus.

I can't tell you whether your symptom picture clears the "pronounced" threshold for 30% unilateral or 50% bilateral. That depends on the clinical findings: marked pronation, extreme plantar tenderness, severe spasm of the tendo achillis, lack of improvement with orthopedic intervention. The qualitative descriptors are what the C&P examiner has to document, and the veteran's lay statement supplements but doesn't substitute for them.

I can't tell you whether your case should be pursued primarily under DC 5276 alone or with secondary connection claims for knee, back, hip, or plantar fasciitis. That depends on the documented downstream conditions in your record, the medical opinions that link them to the pes planus, and the combined-rating math that comes out of the secondary pathway.

I can't tell you why the C&P inadequacy rate for pes planus is 44.5 percent, below the dataset's 52 percent average. My best guess is that the rating schedule's heavily descriptive criteria force examiners to document specific findings (callosities, pronation, tendo achillis displacement), which yields more substantive reports than conditions rated purely on range-of-motion measurements. But that's a hypothesis, not a finding.

What the data can tell you is that pes planus is structurally different from most aggravation claims. The lane works here. The bilateral doubling captures meaningful compensation increments. The lay statement matters. And the entrance exam notation is a tool, not a wall.

The Three Documentation Pieces That Win Pes Planus

If I were filing or appealing a pes planus claim today, the three pieces of the file that would matter most:

One: The entrance examination, treated as a strategic document. Pull your entrance exam and read the foot examination findings carefully. If pes planus is noted, the aggravation lane is your path under § 3.306. If pes planus is not noted, the direct lane is your path with the soundness presumption protecting you. Don't conclude that a noted entrance exam kills your claim. For pes planus specifically, it opens the most productive single lane in the rating system for this condition. The 44.9 percent grant rate on aggravation claims is real.

Two: A C&P examination (or supplemental private examination) that documents the descriptive criteria. The DC 5276 tiers require findings of pronation, callosity patterns, tendo achillis bowing or displacement, plantar tenderness, and response to orthopedic intervention. An examination that captures these findings explicitly is what supports the 30% or 50% tier rating. If your C&P report is short and uses generic language ("flat feet noted bilaterally"), a supplemental private podiatric or orthopedic evaluation can capture the specific findings the rating tier requires.

Three: A lay statement that describes the daily symptom picture with specificity. The 48.5 percent versus 22.3 percent grant gap based on whether the Board quotes the lay statement is the largest lever you have on this claim that doesn't require a clinician. Document the pain intensity and duration, the functional impact, the treatment history, the footwear adaptations, and specific symptom episodes with dates. The Board uses the lay statement to interpret the clinical findings and to determine which tier applies. Generic lay statements get ignored. Specific lay statements get quoted, and quoted lay statements grant at more than double the rate.

If your pes planus is bilateral and pronounced, the 50 percent schedular maximum under DC 5276 is your ceiling. Beyond that, the secondary chains through plantar fasciitis, knee degeneration, back pain, and altered gait are where additional compensation lives. Each secondary requires its own medical opinion, but the orthopedic literature supports each link if your clinical record documents the downstream condition.

Bottom Line

Pes planus is rated under 38 CFR § 4.71a, Diagnostic Code 5276, with tiers at 0%, 10%, 20% (unilateral) / 30% (bilateral), and 30% (unilateral) / 50% (bilateral), reflecting a structural bilateral doubling at the severe and pronounced levels. Across 903 BVA cases, the grant rate is 37.2%, and the modal granted rating is 50% bilateral pronounced. Pes planus is the highest-volume aggravation claim in my dataset. 243 of 903 cases (27%) are filed under the Allen v. Brown framework, and those aggravation claims grant at 44.9%, almost identical to the 43.8% grant rate for direct claims. This is the only condition I've analyzed where aggravation works at parity with direct connection, and the structural reasons (clean entrance-exam notation, well-understood biomechanics of military service as an aggravator, measurable rating increment under DC 5276, and weaker natural-progression rebuttal) explain why. The 50% bilateral pronounced tier is the schedular ceiling for pes planus alone; veterans whose impairment exceeds that ceiling pursue compensation through secondary connections to knee, back, hip, and plantar fasciitis claims. Lay statements that describe the daily symptom picture with specificity drive a 26-point grant-rate gap (48.5% versus 22.3%), one of the largest I've measured for any condition. For veterans with documented entrance-exam pes planus notation, the aggravation lane is the productive path, not a closed door. For veterans whose entrance exam was silent on pes planus, the direct lane is available with the soundness presumption. For all pes planus claimants, the descriptive C&P examination and the specific lay statement together determine which tier applies, and the tier is where the money lives.

Methodology and Limitations

• Data source: Outcome statistics, nexus-quality coding, denial-reason classification, connection-type tagging, and rating-tier distribution are drawn from Claim Raven's analysis of 101,518 condition records drawn from 49,876 Board decisions, including 903 pes planus (flat feet) cases. Rating schedule framework is drawn from 38 CFR § 4.71a, Diagnostic Code 5276. The aggravation framework is from 38 CFR § 3.306, the Wagner v. Principi (2004) U.S. Court of Appeals for Veterans Claims decision, and the Allen v. Brown (1995) framework. The soundness presumption framework is from 38 USC § 1111. 2026 VA disability compensation rates referenced for context (100% single vet = $4,044.91/month).
• Sample size: 903 BVA decisions involving pes planus, with outcomes split 37.2% granted (336), 44.9% denied (405), 17.9% remanded (162). Connection-type subdivisions cover 475 direct, 243 aggravation, 48 secondary, and a small remainder presumptive. Diagnostic-code subdivisions include DC 5276 (298), "pes planus" generic (91), DC 5284 (8), and others. Rating-tier distribution among grants reflects 206 cases where a tier was clearly identified.
• Classification approach: Cases coded as "flat_feet" or pes planus based on the condition extraction from BVA decisions. Connection-type coding reflects the Board's primary theory in each decision. Lay-statement quotation is coded based on whether the Board explicitly quoted veteran lay evidence in the decision text.
• Limitations:
• The 903 cases reached the BVA. Claims granted at the regional office without appeal aren't in this dataset, and the overall VA grant rate for pes planus is almost certainly higher than 37.2%.
• The aggravation grant rate of 44.9% reflects cases the Board explicitly analyzed under the aggravation framework. Some cases that should have been pursued under aggravation may have been filed under direct connection and lost on the soundness presumption mechanics on the wrong side; those don't appear in the aggravation count.
• Rating-tier distribution among grants reflects the cases where a tier was clearly coded in the dataset. Not every grant has a clearly coded tier, and the percentages above reflect the subset where the tier is identified.
• The bilateral-versus-unilateral coding for the 20%/30%/50% tiers is not always cleanly distinguished in the BVA decision text. Some 30% ratings may be unilateral pronounced rather than bilateral severe, and the data does not always resolve this distinction.
• The 44.5% C&P inadequacy rate is calculated against the same conditions methodology used dataset-wide. The lower inadequacy rate relative to other conditions is hypothesized but not independently validated as a property of pes planus C&P examination practice specifically.
• These observations describe BVA patterns. They are not predictions of individual outcomes.