How the VA Rates Knee Arthritis and Degenerative Joint Disease
The VA rates knee arthritis under Diagnostic Code 5003 (degenerative arthritis) or DC 5010 (traumatic arthritis), and then rates the functional limitation separately under DC 5260 (limitation of flexion) or DC 5261 (limitation of extension). The rating depends on X-ray evidence of arthritis and the degree of motion limitation — most knee arthritis claims settle at 10% or 20%.
Diagnostic Code 5003 vs. DC 5010
Understanding which arthritis code applies determines which evidence you need most.
- DC 5003 — Degenerative arthritis (DJD/osteoarthritis): Applies when arthritis develops through age-related wear and tear or chronic overuse — typical of ruck marching, running, or prolonged carrying of heavy loads in service. X-ray evidence showing bony changes (osteophytes, joint space narrowing) is required. Ratings: 10% for one or two minor joints; 20% for one or more major joints (the knee is a major joint).
- DC 5010 — Arthritis due to trauma: Applies when arthritis developed secondary to a specific in-service injury — such as an ACL tear, meniscus injury, or tibial plateau fracture. The injury must be documented in service records or medical records. Rated identically to DC 5003 but the nexus is tied to a traumatic event.
X-Ray Evidence: The Kellgren-Lawrence Scale
The VA requires X-ray evidence to rate arthritis under DC 5003 or DC 5010. A radiologist uses the Kellgren-Lawrence (KL) grading scale to classify severity:
- KL Grade 0: No arthritis. No rating under DC 5003/5010.
- KL Grade 1: Doubtful narrowing and possible osteophytes. Minimal findings.
- KL Grade 2: Definite osteophytes, possible joint space narrowing. Typically supports 10%.
- KL Grade 3: Definite joint space narrowing, multiple osteophytes, sclerosis. Supports 20% or higher when combined with motion limitation.
- KL Grade 4: Large osteophytes, severe narrowing, bony deformity. Typically combined with motion limitation codes for higher ratings.
If X-rays alone show arthritis without motion limitation, the maximum under DC 5003 is 20% for a major joint. But if motion is also limited, the VA rates under the appropriate motion limitation code — whichever produces the higher rating.
Limitation of Flexion and Extension: DC 5260 and DC 5261
When knee arthritis causes limited range of motion, the VA rates under both the arthritis code and the motion codes, then applies the code that gives the veteran the highest rating.
DC 5260 — Limitation of Knee Flexion
Normal knee flexion is 0–140 degrees. The VA rates limited flexion as follows:
- Flexion limited to 60 degrees: 10%
- Flexion limited to 45 degrees: 20%
- Flexion limited to 30 degrees: 30%
- Flexion limited to less than 30 degrees or ankylosis: higher ratings apply
DC 5261 — Limitation of Knee Extension
Normal knee extension is 0 degrees (fully straight). The VA rates limited extension as follows:
- Extension limited to 45 degrees: 10%
- Extension limited to 30 degrees: 20%
- Extension limited to 20 degrees: 30%
- Extension limited to 10 degrees: 40%
- Extension limited to 0 degrees: 50%
The Bilateral Factor for Both Knees
Veterans with service-connected arthritis in both knees receive a bilateral factor — an additional 10% added to the combined value of both knee ratings before being combined with all other disabilities.
- Example: 10% left knee + 10% right knee = 19% combined. The bilateral factor adds 10% of 19% = roughly 1.9 points, rounded to 21% before combining with other conditions.
- You must file for and receive service connection for both knees to receive the bilateral factor.
- This applies whether both knees are rated under DC 5003, DC 5010, or the motion limitation codes.
Establishing the Nexus: Running, Rucking, and In-Service Trauma
To establish service connection, you need a nexus linking your current knee arthritis to military service. The most common nexus arguments are:
- Repetitive physical training (PT) and ruck marching: Years of high-impact physical training, loaded marching, and jumping cause cumulative knee joint wear. Physical fitness test (PFT) records and training logs in your STRs support this nexus.
- In-service knee injury: ACL tears, meniscus tears, and tibial plateau fractures documented in service medical records establish direct service connection for traumatic arthritis under DC 5010.
- Secondary arthritis from another service-connected condition: If you have a service-connected condition that altered your gait (back injury, hip condition, foot deformity), you can file for secondary knee arthritis.
C&P Exam Tips for Knee Arthritis Claims
At your C&P exam, the examiner will test range of motion, perform clinical knee tests, and review your imaging. Here is how to prepare.
- Bring a copy of your most recent knee X-ray report showing KL grade findings.
- Tell the examiner about pain during motion (not just at the endpoint) — this matters under 38 CFR 4.59.
- Describe activities that trigger pain: going up/down stairs, squatting, extended sitting or standing, and exercise.
- Report any locking, popping, swelling, or giving-way of the knee — these are signs of additional pathology that may deserve separate ratings.
- Note whether you use a brace, cane, or have received injections or surgery.
Use our VA disability rating calculator to estimate your combined rating with knee arthritis and other conditions. If you have a knee injury without arthritis, see our related knee pain VA disability guide. Browse all VA-rated conditions at VA disability.