Osteoarthritis (OA) is a common joint condition among veterans. Decades of rucking, running in boots, operating heavy vehicles, jumping from aircraft, and performing physically demanding military duties wear down joint cartilage far faster than civilian occupations. The result: bone-on-bone pain, stiffness, swelling, and functional limitation that follows veterans into retirement. VA rates osteoarthritis under Diagnostic Code (DC) 5003, which directs that it be rated on limitation of motion under the code for the affected joint; the bilateral factor may apply when both sides are compensable. This guide explains exactly how VA rates OA, what evidence you need, how the C&P exam works, and strategies for claiming bilateral and secondary OA.
Osteoarthritis is a degenerative joint disease characterized by the breakdown of articular cartilage — the smooth tissue that cushions the ends of bones in a joint. As cartilage wears away, the underlying bone becomes exposed. Bone rubs on bone, causing pain, swelling, stiffness, and reduced range of motion. In severe cases, bone spurs (osteophytes) form at the joint margins, further limiting movement and causing inflammation.
For how VA rates elbow motion limits, see our elbow injury and tennis elbow guide.
Unlike rheumatoid arthritis (an autoimmune disease), OA is caused by mechanical wear-and-tear. This is why military service is a significant risk factor: the physical demands of service put extraordinary stress on joints over years and decades.
Military activities that cause or accelerate OA include:
One of the most common reasons veterans' OA claims are denied: the condition wasn't diagnosed in service, even though the underlying damage began there. OA can take 10–20 years after the initial joint stress or injury to become radiographically visible. Documented in-service injuries or occupational exposures create the nexus to service, even when OA is diagnosed post-service.
To receive VA disability compensation for osteoarthritis, you must establish service connection — a legally recognized link between your OA and military service. There are three main pathways:
The most straightforward path: an in-service injury caused or contributed to your OA. Examples include a documented knee injury in a training accident, a shoulder dislocation during a jump, or a hip fracture from a fall in service. Your service treatment records (STRs) should show the injury was treated during service. Post-traumatic OA developing from that injury is directly service-connected.
Even without a single dramatic injury, direct service connection is possible if a private medical opinion can establish that your occupational military duties — the cumulative physical demands — caused your OA. A rheumatologist or orthopedic surgeon can write a nexus letter documenting the mechanism: "This veteran's bilateral knee osteoarthritis is at least as likely as not caused by 20 years of load-bearing, rucking, and high-impact activity consistent with his infantry MOS and deployment history."
If you had mild OA before entering service, but military service worsened it beyond its natural progression, VA must grant service connection for the aggravated portion. This requires showing that service caused deterioration beyond what would have occurred naturally.
OA can develop secondary to other service-connected conditions. Common examples:
VA rates degenerative arthritis established by X-ray under 38 CFR § 4.71a, Diagnostic Code 5003. The code works in this order:
| Rating | DC 5003 criteria (when there is no limitation of motion) |
|---|---|
| 20% | X-ray evidence of involvement of 2 or more major joints or 2 or more minor joint groups, with occasional incapacitating exacerbations |
| 10% | X-ray evidence of involvement of 2 or more major joints or 2 or more minor joint groups |
Notes in the regulation: the 20% and 10% ratings based on X-ray findings are not combined with ratings based on limitation of motion, and they are not used for conditions listed under DC 5013 to 5024.
Example of the rule: knee flexion limited to 80° does not meet the compensable level of DC 5260 (flexion limited to 45° is 10%; 60° is 0%), so if the limitation is objectively confirmed, DC 5003 provides a 10% rating for that knee as a major joint.
Range of motion (ROM) testing is the primary measurement tool for rating musculoskeletal conditions including OA. Understanding how ROM translates to ratings helps you present your condition accurately at a C&P exam.
Active ROM measures how far you can move the joint yourself — without assistance. The examiner asks you to flex, extend, and rotate the joint through its full range. The actual degrees achieved are recorded with a goniometer (a protractor-like measuring device).
Active ROM thresholds that trigger ratings vary by joint. For the knee: normal flexion is 0–140°. Under DC 5260, flexion limited to 60° is 0%, 45° is 10%, 30° is 20%, and 15° is 30%. Under DC 5261, extension limited to 5° is 0%, 10° is 10%, 15° is 20%, 20° is 30%, 30° is 40%, and 45° is 50%.
Under 38 CFR § 4.59 (painful motion), painful motion with joint or periarticular pathology is recognized as productive of disability, and the examiner should test active and passive motion, in weight-bearing and nonweight-bearing. The examination should record the point at which pain begins.
Always tell the examiner precisely when pain begins during movement. Say "I can flex my knee to about 70 degrees before the pain is too severe to continue" — not just "my knee hurts."
The DeLuca v. Brown decision requires VA to consider functional loss due to pain — not just measured ROM. If your OA causes pain that significantly limits function beyond the measured ROM, the examiner should document this as additional functional impairment. Practically, this means:
If the examiner records flare-up limitation, that is considered with the measured motion.
VA can rate OA in virtually any joint. Each joint has its own diagnostic code and rating criteria based on ROM measurements. Common joints rated for OA include:
| Joint | Primary Diagnostic Code(s) | Key ROM Measurement |
|---|---|---|
| Knee | DC 5260, 5261 (5257 for instability) | Flexion (0–140° normal) and extension |
| Hip | DC 5251, 5252, 5253 | Thigh extension (5251), flexion (5252), abduction, adduction and rotation (5253); normal flexion 0–125° |
| Shoulder | DC 5201 (limited arm motion), 5200 (ankylosis), 5203 (clavicle/scapula) | Forward flexion (0–180° normal), abduction |
| Ankle | DC 5270, 5271 | Dorsiflexion, plantar flexion |
| Elbow | DC 5206 (flexion), 5207 (extension), 5213 (pronation/supination) | Flexion, extension, pronation, supination |
| Wrist | DC 5214 (ankylosis), 5215 (limited motion) | Dorsiflexion and palmar flexion |
| Lumbar Spine | DC 5237 (strain), 5242 (degenerative arthritis of spine), General Rating Formula for the Spine | Forward flexion (0–90° normal), extension |
| Cervical Spine | DC 5237, 5242, 5243 (IVDS), General Rating Formula for the Spine | Forward flexion (0–45° normal), rotation |
A strong OA claim requires:
X-rays are required to support a DC 5003 claim — the code specifically requires "X-ray evidence of arthritis." X-ray findings in OA include:
The Kellgren-Lawrence scale grades OA severity from Grade 0 (none) to Grade 4 (severe). VA uses X-ray findings to confirm the diagnosis, but ratings are driven by ROM — not radiographic grade.
Your actual degree-by-degree ROM measurements from a C&P exam or private orthopedic evaluation are the numbers that drive your rating. Private functional assessments performed near the time of your C&P exam, showing worse ROM, are valuable supplemental evidence.
A written lay statement documenting your daily functional limitations is essential and underutilized. Describe specifically:
The C&P musculoskeletal examination is the most important single event in your OA claim. Here's what to expect and how to prepare:
The examiner will measure ROM in each claimed joint. Active motion is measured first (you move the joint). Then passive motion (examiner moves it). The examiner uses a goniometer to measure actual degrees. They also note whether pain occurs during movement and at what point.
Be truthful — don't perform through pain. Many veterans instinctively push through discomfort to appear strong. At a C&P exam, stopping when pain becomes significant is accurate — not weakness. The rating is based on your real functional limitation, and pushing through pain understates your disability.
The examiner will ask about your pain: location, quality, severity, what makes it worse, what makes it better, whether it causes incapacitation. Describe pain that wakes you at night, pain that prevents normal daily activities, and specifically describe flare-ups — episodes when your condition is significantly worse than baseline.
For lower extremity OA (knees, hips, ankles), the examiner may assess weight-bearing capability. Can you stand for extended periods? How does weight-bearing affect your pain? If prolonged standing or walking significantly worsens your symptoms, make that clear.
Request a copy of your C&P Disability Benefits Questionnaire (DBQ) and review it carefully. Verify that ROM measurements were recorded accurately, that flare-up limitations were noted, and that the nexus opinion (for new claims) is favorable. If the DBQ omits important functional limitations, a private medical opinion can supplement the record.
Many veterans have OA in multiple joints simultaneously. Each joint is rated as a separate disability, and the ratings are then combined using VA's combined ratings formula (not simple addition).
VA's combined ratings formula works on the "whole person" concept. If you have a 20% knee rating, you have 80% "remaining ability." A second 20% rating is applied to that 80%, yielding 16%, which rounds to 16%. Your combined rating is 36%, which rounds to 40%. Each additional rating is applied to the remaining "able-bodied" percentage.
For a veteran with:
The bilateral factor would apply to the two knees, then all ratings combine using the combined ratings table. See the combined ratings formula.
Under 38 CFR § 4.26, when a veteran has ratable disabilities affecting both corresponding limbs, VA adds 10% to the combined rating of those two bilateral conditions before incorporating them into the overall combined rating.
Example: A veteran with 20% for the right knee and 20% for the left knee. Combined value of those two ratings is 36%. VA adds 10% of 36%, which is 3.6 points, for an adjusted bilateral value of 39.6% before it is combined with other disabilities. The bilateral factor applies only when each side is compensable (4.26(c)).
Bilateral factor applies to:
The bilateral factor does NOT apply to the spine (even though you have only one spine), hearing loss, or single-limb conditions.
Secondary service connection is when OA develops as a consequence of another already service-connected disability. This is extremely common and often overlooked:
A service-connected lumbar spine injury causes abnormal gait — limping, avoiding certain movements, overloading one side. Over years, this abnormal gait pattern causes compensatory OA in knees, hips, and ankles on the overloaded side. The OA is secondary to the service-connected back condition. A physical medicine physician or orthopedist can write a nexus letter documenting this mechanism.
ACL tears, meniscus damage, and other knee injuries dramatically increase the risk of knee OA in that joint over subsequent decades. If your knee injury is service-connected but OA wasn't claimed at the same time, file an additional claim for OA secondary to the knee injury.
Diabetes causes joint and soft tissue complications including Charcot joints (neuropathic arthropathy) and accelerated OA. Veterans with service-connected diabetes (including Agent Orange presumptive Type 2 diabetes) can file for secondary OA.
Osteoarthritis is progressive — it worsens over time. If your current VA rating no longer reflects your actual functional limitations, file for an increased rating using a Supplemental Claim (VA Form 20-0995) with new and relevant evidence: updated X-rays showing increased joint space narrowing, new ROM measurements showing decreased motion, orthopedic notes documenting worsening function, or evidence of new treatment (cortisone injections, physical therapy, escalating pain management).
Veterans whose OA has progressed to joint replacement (total knee or hip arthroplasty) may receive a temporary 100% rating after surgery, followed by a rating based on residuals under the prosthetic implant codes (DC 5051-5056); the length of the temporary rating is set by the diagnostic code. See VA's guides on VA disability for knee replacement and VA disability for hip replacement for post-surgical rating details.
DC 5003 directs that arthritis established by X-ray be rated on limitation of motion under the code for the affected joint. If limitation of motion is noncompensable, 10% applies for each major joint or group of minor joints with objectively confirmed limitation. Without limitation of motion, X-ray evidence of 2 or more major joints or 2 or more minor joint groups is 10%, or 20% with occasional incapacitating exacerbations. Each affected joint is rated separately and ratings are combined with the combined ratings formula.
Each joint is rated as a separate disability. Ratings are combined using VA's combined ratings formula (not simple addition). Corresponding bilateral joints (both knees, both hips) can qualify for the bilateral factor, which adds 10% of the combined value of the two sides when each is compensable.
DC 5003 is VA's Diagnostic Code for degenerative arthritis other than post-traumatic. It is rated on limitation of motion under the joint's own code; when that is noncompensable, 10% applies per major joint or minor joint group. Without limitation of motion, the X-ray-based ratings are 10% and 20%.
Under 38 CFR 4.26, when both arms or both legs have compensable disabilities, the right and left ratings are combined as usual and 10 percent of that value is added before further combinations. For example, 20% right knee and 20% left knee combine to 36%, and 10% of 36% (3.6) is added, for about 39.6%. It does not apply unless each side is compensable.
Yes. OA from cumulative occupational stress (rucking, high-impact activities, vehicle operation) can be service-connected with a medical nexus opinion documenting the mechanism. A private rheumatologist or orthopedist can write a nexus letter linking your OA to your military occupational demands even without a single documented injury.
VA uses goniometer measurements of active and passive motion in degrees, compared with the thresholds in the diagnostic code for the joint. Painful motion (38 CFR 4.59) and functional loss during flare-ups (38 CFR 4.40, 4.45) are considered with the measured motion.
Editorial Standards: Written by claim.vet Editorial Team, a veterans benefits researcher specializing in 38 CFR musculoskeletal ratings. Verified against 38 CFR Part 4 and current VA.gov guidance. Last reviewed: October 31, 2026. Not legal advice — for representation, consult a VA-accredited attorney.
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