Knee injuries are among the most common service-connected conditions in the VA disability system, affecting veterans across all branches and MOSs. Military service creates exceptional knee stress: infantry rucking with heavy loads, parachute landings, vehicle operations over rough terrain, explosive blast injuries, combat sports injuries, prolonged kneeling in confined spaces, and repetitive high-impact physical training. The result is an epidemic of ACL tears, meniscal injuries, patellofemoral syndrome, osteoarthritis, and ligament instability among veterans of every era.
Despite the prevalence of knee injuries, claims are frequently underrated — often because veterans receive only a single rating for one aspect of their knee condition (typically limitation of motion) when they should also receive a separate rating for instability, or because bilateral knee conditions aren't properly combined with the bilateral factor, or because secondary conditions like hip and back pain from altered gait go unclaimed.
This guide covers the complete VA knee rating system: the regulatory framework under 38 CFR 4.71a, all relevant diagnostic codes (DC 5256–5263), how range of motion measurements translate to ratings under DC 5260 and 5261, instability ratings under DC 5257, the critical question of separate ratings for instability and ROM, arthritis, meniscus injuries, ligament damage, post-surgical residuals, total knee replacement under DC 5055, the bilateral factor, and secondary conditions. If your knee rating is wrong, this guide shows you what the law requires and how to fix it.
All VA disability ratings for knee injuries are governed by 38 CFR Part 4, Subpart B — the Schedule for Rating Disabilities, Musculoskeletal System. Several foundational regulatory principles govern knee ratings:
Under 38 CFR 4.59, when a joint is painful on motion — even if the range of motion doesn't technically fall below a higher rating threshold — the rating cannot be 0%. Any documented pain during motion requires at least the minimum compensable rating for that joint. For knees, this means a veteran with a knee that is painful on flexion but not severely limited in ROM must still receive at least a 10% rating.
Under 38 CFR 4.14, VA may not rate the same disability (or same manifestation of a disability) twice under different diagnostic codes. This is the anti-pyramiding rule. However — critically — this rule does not prevent rating distinct functional disabilities separately, even in the same joint. Instability (DC 5257) and limitation of motion (DC 5260/5261) are distinct functional disabilities that may be separately rated without pyramiding.
Under 38 CFR 4.40 and 38 CFR 4.45, VA must evaluate functional loss from musculoskeletal conditions — including pain on use, weakness, excess fatigability, and instability. These factors must be considered when rating the knee, not just the measured degrees of motion at a single examination.
The case DeLuca v. Brown, 8 Vet. App. 202 (1995), requires VA to consider the effect of flare-ups on functional limitation when rating musculoskeletal conditions. If a veteran's knee condition causes flare-ups — periods of significantly worsened pain and reduced motion — the examiner must address these. Veterans should report their worst-day symptoms at C&P exams, not just baseline function.
Knee conditions are rated under multiple diagnostic codes in 38 CFR 4.71a, each addressing a specific type of knee impairment:
| DC | Condition | Rating Range |
|---|---|---|
| 5256 | Knee, ankylosis of | 20%–60% depending on position |
| 5257 | Knee, other impairment (instability, subluxation, lateral instability) | 10%–30% |
| 5258 | Cartilage, semilunar (meniscus), dislocated — locking, pain, effusion | 20% |
| 5259 | Cartilage, semilunar, removal (meniscectomy), symptomatic | 10% |
| 5260 | Leg, limitation of flexion of | 10%–30% |
| 5261 | Leg, limitation of extension of | 10%–50% |
| 5262 | Tibia and fibula, impairment of | 10%–40% |
| 5263 | Genu recurvatum | 10% |
| 5003 | Arthritis, degenerative (major joint) | 10%–20% (or analogous ROM codes) |
| 5010 | Arthritis, traumatic | Rates as DC 5003 |
| 5055 | Knee replacement (prosthesis) | 30% min / 100% for 1 year post-surgery |
Range of motion (ROM) measurements are the primary basis for knee ratings under DC 5260 (limitation of flexion) and DC 5261 (limitation of extension). The knee's normal range of motion is flexion from 0 to 140 degrees and full extension at 0 degrees (fully straightened leg). During a C&P exam, the examiner uses a goniometer to measure the maximum flexion and extension the veteran can achieve.
Normal knee flexion: 0 to 140 degrees. The rating thresholds for limited flexion are:
| Rating | Flexion Limited To |
|---|---|
| 10% | 60 degrees |
| 20% | 45 degrees |
| 30% | 30 degrees |
A veteran who cannot flex their knee past 60 degrees (cannot perform a full squat or kneel) would be rated at 10% under DC 5260. Flexion limited to 45 degrees — cannot bring the heel within 6 inches of the buttock — supports 20%. Severe limitation to only 30 degrees of flexion supports 30%.
Normal knee extension: 0 degrees (fully straight). A knee that cannot fully extend — remains bent — is rated under DC 5261. This is often caused by quadriceps weakness, post-surgical scar tissue, or ligament pathology. The rating thresholds:
| Rating | Extension Limited To (Cannot Straighten Past) |
|---|---|
| 10% | 45 degrees (knee remains bent at 45°) |
| 20% | 30 degrees |
| 30% | 20 degrees |
| 40% | 10 degrees |
| 50% | 0 degrees (completely unable to straighten) |
Limitation of extension is often more disabling than limitation of flexion because it affects the ability to stand, walk normally, and bear weight. A veteran whose knee is locked at 10 degrees of flexion (cannot fully straighten) qualifies for 40% under DC 5261 alone — a substantial rating for what might appear to be a minor deficit.
Under DeLuca v. Brown, the C&P examiner must consider flare-up symptoms when rating ROM. If a veteran's knee normally has 60 degrees of flexion but drops to 30 degrees during a flare-up (which might be a monthly event), the flare-up ROM is relevant to the rating and must be addressed. Veterans who regularly experience flare-ups should explicitly report flare-up ROM at their C&P exam: "At baseline I can flex to 60 degrees, but during a flare-up — which happens every two to three weeks — I can barely flex to 30 degrees and cannot bear weight on the knee." This documented flare-up history can push a 10% rating up to 30%.
Diagnostic Code 5257 covers "other impairment of the knee" — the primary application is lateral instability, medial instability, recurrent subluxation (patellar dislocation/subluxation), and general knee instability following ligament damage. The rating criteria for DC 5257 are:
| Rating | Criteria |
|---|---|
| 10% | Slight instability — mild giving way or lateral shift on weight-bearing, occasional episodes |
| 20% | Moderate instability — frequent episodes of joint giving way, noticeable instability affecting activities |
| 30% | Severe instability — frequent giving way, knee brace required, significant functional limitation, affects daily activities and employment |
The key findings for instability ratings include: clinical tests showing laxity (anterior drawer test for ACL, varus/valgus stress test for MCL/LCL, posterior drawer for PCL), patient-reported episodes of the knee "giving out" or "buckling," MRI findings of ligament laxity or tear, and functional limitations from instability including difficulty with stairs, uneven terrain, or weight-bearing activities.
This is one of the most important and most commonly misunderstood aspects of VA knee ratings: a veteran CAN receive separate ratings for instability (DC 5257) AND limitation of motion (DC 5260 and/or DC 5261) — provided these represent genuinely distinct functional impairments.
The anti-pyramiding rule under 38 CFR 4.14 prevents rating the same symptom twice. However, instability and limitation of motion are not the same symptom:
A veteran can have perfectly normal range of motion but severe instability (the knee gives out when turning or stepping on uneven ground). Conversely, a veteran can have severely limited range of motion with a completely stable joint (post-surgical scar tissue prevents full flexion but the ligaments are intact). They are distinct functional disabilities that both affect daily functioning independently of each other.
Multiple Board of Veterans' Appeals decisions and Court of Appeals for Veterans Claims cases have recognized that instability and ROM limitation can be separately rated when they represent distinct disabilities. The key principle is that the anti-pyramiding rule prevents only the rating of the same manifestations under different codes — not the rating of genuinely different functional impairments that happen to be in the same joint. Veterans who have received only a single knee rating should have their case reviewed by a VA-accredited attorney or experienced VSO to determine whether a separate instability rating is available.
Knee arthritis — whether osteoarthritis (degenerative) or traumatic arthritis following injury — is rated under DC 5003 (degenerative arthritis) or DC 5010 (traumatic arthritis). These codes are particularly important when a veteran has documented arthritis on imaging but ROM limitations that don't meet a higher threshold under DC 5260/5261.
DC 5003 provides a 10% rating for arthritis with X-ray evidence in a major joint (the knee is a major joint) when limitation of motion is slight — not sufficient to rate under DC 5260/5261. A 20% rating applies when two or more major joints are involved (e.g., bilateral knees) with X-ray evidence. DC 5003 ratings are "in addition to" or "analogous to" the underlying ROM code: if ROM limitations produce a higher rating, use the ROM code. If ROM is not severely limited but arthritis is documented on imaging, DC 5003 provides the minimum 10% compensable rating.
Many veterans have knee arthritis documented on X-ray or MRI — joint space narrowing, osteophytes, subchondral sclerosis — but "normal" or near-normal range of motion on a good day. Without DC 5003, VA might assign a 0% rating because ROM measurements don't reach the 10% threshold. But with documented arthritis in a major joint (knee), DC 5003 mandates at least 10% based on objective imaging evidence alone, plus additional rating for any limitation of motion under the ROM codes.
DC 5010 covers traumatic arthritis — arthritis that develops as a direct consequence of a specific trauma (such as an ACL tear, tibial fracture, or combat blast injury). DC 5010 rates the same way as DC 5003 but establishes a clearer nexus between the traumatic in-service event and the arthritic development. Veterans whose knee arthritis developed after a documented in-service knee injury should be rated under DC 5010.
Meniscal injuries — tears of the medial or lateral meniscus — are extremely common in military service, particularly in infantry, airborne, and high-activity MOSs. The two meniscal diagnostic codes address different aspects of meniscal pathology:
DC 5258 rates at 20% for meniscal cartilage displacement causing frequent episodes of "locking" (the knee suddenly becomes stuck/cannot bend or straighten), pain, and effusion (fluid buildup in the joint). This rating requires the three elements — locking, pain, and effusion — to be frequently present. Veterans with locking episodes should document each occurrence in their medical records. The 20% rating is fixed — there is no higher or lower rating under DC 5258.
DC 5259 rates at 10% for post-meniscectomy residuals — symptomatic complaints following partial or total removal of the meniscus. This is a minimum rating for any veteran who has had meniscus surgery and continues to have knee symptoms. DC 5259 is important because it provides a floor rating even when ROM and instability findings don't reach higher thresholds — ensuring a veteran who underwent meniscal surgery always receives at least 10% for that knee.
Ligament injuries are among the most common serious knee injuries in military service — particularly ACL (anterior cruciate ligament) tears from pivoting, landing, and combat activities; MCL (medial collateral ligament) injuries from lateral impacts; and PCL (posterior cruciate ligament) injuries from dashboard-style impacts in vehicle accidents.
Ligament injuries are not rated under a specific ligament-named diagnostic code. Instead, they are rated based on their functional consequences:
The key insight: each of these functional manifestations — instability, ROM limitation, traumatic arthritis — can be separately rated without pyramiding, because they represent distinct functional disabilities arising from the ligament injury. A veteran with ACL tear may qualify for ratings under DC 5257 (instability from ACL laxity) + DC 5260 (flexion limited by post-surgical changes) + DC 5010 (traumatic arthritis shown on imaging) — three separate ratings from one ACL injury, each reflecting a different functional impairment.
The VA rates both surgically repaired and non-surgically managed ligament injuries. Surgery (ACLR, MCL repair) does not eliminate entitlement to ratings for residual instability or post-surgical ROM limitation — in fact, the surgery itself is evidence of the severity of the original injury. Veterans who underwent ligament surgery should document post-surgical symptoms including: residual instability, ROM limitations, swelling after activity, clicking/popping, and pain with specific activities.
Veterans who have had knee surgery — arthroscopy, ACL reconstruction, meniscal surgery, tibial plateau fracture repair — are entitled to ratings for post-surgical residuals. The rating is based on the functional impairment that persists after surgery has healed, not on the surgery itself. Common post-surgical residuals include:
The C&P exam following knee surgery should document all post-operative functional limitations — the examiner should not assume the surgery "fixed" the problem without documenting the current functional status.
REE Medical provides free consultations to determine if you qualify for a nexus letter — the #1 piece of evidence for knee injury claims and appeals.
Check My Nexus Letter Options — Free →Total knee replacement (TKR) — replacing the entire knee joint with a prosthetic — qualifies for special VA rating treatment under DC 5055. This is one of the most favorable rating provisions in the entire schedule for veterans with severe knee disease.
Under DC 5055, following total knee replacement (implantation of a prosthesis), VA must assign a 100% rating for one full year from the date of surgery. This temporary 100% rating — $3,737.85/month tax-free for a veteran with no dependents — applies regardless of how well the surgery goes. The purpose is to account for the recovery period, rehabilitation, and the residual functional limitations of the first year post-TKR.
After the one-year 100% temporary period, DC 5055 provides the following minimum rating:
Veterans who had TKR and whose VA rating dropped to 30% after the temporary period but who continue to have significant functional limitations should request a C&P exam and ensure all residual symptoms are documented. The 30% minimum floor does not mean 30% is the only available rating post-TKR — higher ratings are available for functionally significant residuals.
When a veteran has compensable service-connected disabilities affecting both knees, the bilateral factor under 38 CFR 4.68 applies. This adds 10% to the combined value of the bilateral knee ratings before integrating with other conditions in the overall combined rating.
Example: A veteran with 20% limitation of flexion (DC 5260) in the right knee and 10% instability (DC 5257) in the left knee:
The bilateral factor is legally mandatory whenever bilateral compensable conditions exist. If your rating decision shows bilateral knee conditions but no bilateral factor calculation, file an HLR pointing out this clear error in the rating math.
Knee injuries trigger a biomechanical cascade that affects connected joints throughout the kinetic chain. Secondary conditions from service-connected knee injuries are separately ratable and can significantly increase a veteran's combined rating.
When a veteran compensates for a painful or unstable knee — limping, shifting weight to the other leg, altering stride — the ipsilateral and contralateral hip joints experience abnormal loading. Over time, this altered mechanics accelerates hip arthritis and bursitis. Hip conditions are rated under DC 5252 (limitation of hip motion) or DC 5003 (arthritis) depending on diagnosis and severity. A nexus opinion from an orthopedist explaining the biomechanical connection between the knee condition and the hip deterioration is essential for this secondary claim.
Knee-related gait changes — antalgic gait (limping), avoidance of full knee flexion, altered step length — affect lumbosacral mechanics and contribute to low back strain. Veterans who developed or worsened their low back condition coinciding with the progression of their knee injury have potential for a secondary back claim. See VA back pain disability rating guide for the full rating breakdown under DC 5237, 5242, and 5243.
One of the most commonly missed secondary claims: the opposite (contralateral) knee bearing extra load to compensate for the injured knee develops accelerated arthritic changes. Veterans with a service-connected right knee injury who subsequently develop left knee arthritis from compensatory loading can claim the left knee as secondary to the right. This requires a medical nexus opinion from an orthopedist explaining the overloading mechanism and documenting that the contralateral knee disease is more advanced than would be expected from normal aging alone.
Altered gait mechanics from knee injury affect foot and ankle biomechanics as well — potentially worsening existing flat feet or contributing to ankle instability. Veterans with service-connected flat feet who also have knee injuries may find the conditions are mutually contributing. See VA flat feet disability rating guide.
Chronic severe knee pain — particularly pain that limits mobility, prevents exercise, disrupts sleep, and affects employment — is a well-documented cause of depression and anxiety disorders. These mental health conditions are separately ratable as secondary to service-connected knee pain under DC 9434 (Major Depressive Disorder) and DC 9400 (Generalized Anxiety Disorder). A rating of 30–50% for secondary depression stacked on top of knee and hip conditions can push combined ratings to 70–90%.
The following monthly compensation rates apply for 2026. All VA disability compensation is completely federal income tax-free.
| Combined Rating | Veteran Only | Veteran + Spouse | Veteran + Spouse + 1 Child |
|---|---|---|---|
| 10% | $175.51 | $175.51 | $175.51 |
| 20% | $346.95 | $346.95 | $346.95 |
| 30% | $537.42 | $601.58 | $650.40 |
| 40% | $774.16 | $854.61 | $917.93 |
| 50% | $1,102.04 | $1,196.48 | $1,274.27 |
| 60% | $1,395.93 | $1,506.27 | $1,598.84 |
| 70% | $1,759.43 | $1,885.65 | $1,993.41 |
| 80% | $2,044.89 | $2,186.42 | $2,309.52 |
| 90% | $2,297.96 | $2,454.80 | $2,593.25 |
| 100% (TKR temp) | $3,737.85 | $4,063.63 | $4,244.05 |
To illustrate the impact of proper knee ratings: a veteran with 30% instability (DC 5257) + 20% limitation of flexion (DC 5260) + 20% secondary hip condition + bilateral factor applied may reach a combined rating of approximately 60–70% just from knee and related conditions, producing $1,395–$1,759/month tax-free. Adding secondary back pain or mental health conditions pushes this toward 80–90%.
The C&P exam for knee injuries is the most important moment in your claim. A thorough, well-prepared examination dramatically increases the chance of an accurate rating. Here's how to prepare:
Request a copy of the exam report. Verify that: ROM measurements were taken with a goniometer, instability was separately assessed (not just noted incidentally), flare-up information was noted if you reported it, and all secondary symptoms were documented. A private orthopedic evaluation that addresses both instability and ROM limitation separately is the strongest counter-evidence to an inadequate C&P examination.
If your knee claim was denied or underrated, here are your appeal options:
File with new evidence — private orthopedic evaluation documenting instability, updated imaging, or a nexus letter for secondary conditions. File within one year of denial to protect your effective date. See VA Supplemental Claim guide.
File if VA made a clear error — failed to apply the bilateral factor, failed to separately rate instability and ROM, applied the wrong diagnostic code, or ignored flare-up evidence. See VA Higher-Level Review guide.
For complex knee claims — particularly those involving multiple separate ratings, bilateral factor disputes, TKR timing issues, or significant back pay — a VA-accredited attorney can identify errors and represent you through the full appeals process. See VA nexus letter guide.
Yes, in specific circumstances. A veteran can receive separate ratings for the same knee when different diagnostic codes address genuinely distinct functional disabilities. The most common example: DC 5257 (instability) rated alongside DC 5260 or 5261 (limitation of motion) — when the knee has both instability and limited ROM as separate functional problems. Additionally, DC 5258 or 5259 (meniscal codes) can be combined with instability or ROM codes if they represent separate functional impairments. The limit is that VA cannot rate the same symptom twice under different codes — that is the actual pyramiding prohibition under 38 CFR 4.14.
Yes. A successful ACL reconstruction does not eliminate entitlement to a VA rating for residual symptoms. If you have any of the following after ACL repair: residual instability, limitation of motion from post-surgical scar tissue, arthritis from the original injury or surgical trauma, or documented pain during activity — you are entitled to ratings reflecting those residual functional impairments. The surgery is evidence of the severity of the original injury; it doesn't reset the clock or eliminate your claim. Many veterans underrate themselves after surgery by assuming "I got it fixed" means zero disability — that is incorrect under VA rating law.
A veteran with a single knee condition rated at 60% or higher can qualify for TDIU based on a single condition (60% single condition threshold) if the condition prevents substantially gainful employment. A veteran with multiple knee conditions (both knees, plus hip and back secondary conditions) that combine to 70%+ — with at least one condition at 40%+ — qualifies for multi-condition TDIU. Veterans whose knee conditions prevent them from performing any job they're qualified for (considering education and work history) should explore TDIU as a pathway to 100%-rate compensation. See TDIU guide.
Yes, as long as your knee condition is service-connected. The 100% temporary rating under DC 5055 applies to any TKR for a service-connected knee condition — it doesn't matter whether the surgery occurred during service or decades after discharge. What matters is that the underlying knee condition being replaced (arthritis, ligament damage, etc.) is service-connected. If you have service-connected knee arthritis and subsequently needed a total knee replacement, claim the TKR under DC 5055 immediately after surgery to receive the one-year 100% temporary rating beginning the date of surgery.
DC 5260 rates limitation of flexion (how far you can bend the knee toward your buttock). DC 5261 rates limitation of extension (how straight you can get the knee). They measure different planes of motion. A veteran can be rated under both DC 5260 (e.g., 20% for flexion limited to 45°) AND DC 5261 (e.g., 10% for extension limited to 45°) for the same knee, because these are genuinely distinct functional limitations in different directions of movement. These are not the same symptom being rated twice — they are different functional impairments in different ROM directions.
Many veterans receive only a single knee rating when they qualify for separate instability AND limitation of motion ratings. Take our free 2-minute screener to check your eligibility.
Take the Free Eligibility Check →