Most veterans file “knee pain,” get one rating, and assume that is the ceiling. It is not. The knee is one of the few joints in the rating schedule where a single knee can carry three separate, simultaneous ratings — limited flexion, limited extension, and instability — and they all stack under 38 CFR § 4.25. Two knees doubles the play and adds a bilateral bonus on top.
This is a strategy article, not just a schedule dump. It walks the diagnostic codes, the range-of-motion measurement rules that the VA frequently gets wrong, the § 4.59 painful-motion floor, the common knee conditions and what each one supports, and the exact evidence that turns a single under-rated knee into a properly-rated one.
The core move
DC 5260 (flexion), DC 5261 (extension), and DC 5257 (instability) compensate three different functional losses, so combining them is not pyramiding under § 4.14. VA General Counsel said so directly (VAOPGCPREC 23-97, 9-2004). If your decision letter rated only one of the three, the other two were likely left on the table.
The three stacking codes
DC 5260 — Limitation of flexion (how far you can bend it)
Normal flexion is 0–140°. The schedule:
- Flexion limited to 45° → 10%
- Flexion limited to 30° → 20%
- Flexion limited to 15° → 30% (maximum for flexion alone)
DC 5261 — Limitation of extension (how far you can straighten it)
Normal extension is 0°. The schedule:
- Extension limited to 10° → 10%
- Extension limited to 15° → 20%
- Extension limited to 20° → 30%
- Extension limited to 30° → 40%
- Extension limited to 45° → 50%
DC 5257 — Recurrent subluxation or lateral instability (does it give way?)
- Slight → 10%
- Moderate → 20%
- Severe → 30%
Because 5257 measures instability rather than motion, it is rated independently of 5260/5261. That is the legal basis for stacking all three.
What stacking is worth in 2026
A single knee with painful flexion (10% under 5260), painful extension (10% under 5261), and moderate instability (20% under 5257) combines under § 4.25 to roughly 36% for that one knee — rounded to 40% on the schedule, that is $795.84/month in 2026 versus the $180.42/month a single 10% flexion rating would have paid. Model your exact combination with the VA Math Calculator.
Meniscus codes — DC 5258 and 5259
- DC 5258 — dislocated semilunar cartilage with frequent episodes of locking, pain, and effusion into the joint → flat 20%.
- DC 5259 — symptomatic removal of semilunar cartilage (after a meniscectomy) → flat 10%.
5258 and 5259 cannot both be rated on the same knee, but either can be combined with 5260, 5261, and 5257 where the symptoms are distinct. Locking and effusion are the words that trigger 5258.
The measurement rules the VA gets wrong
Knee ratings are driven by numbers, and the numbers have to be collected correctly:
The goniometer + Correia rule
Range of motion must be measured with a goniometer, and under Correia v. McDonald (2016) the exam must record active and passive motion, weight-bearing and non-weight-bearing, and compare to the opposite (undamaged) knee. Missing any of these makes the exam inadequate — and an inadequate exam is grounds for a new one.
The § 4.59 painful-motion floor
38 CFR § 4.59 entitles a painful joint to at least the minimum compensable rating — 10% for the knee — even if motion is otherwise full. Burton v. Shinseki (2011) and Petitti v. McDonald (2017) confirmed it applies broadly. If your knee hurts when you bend or straighten it, 0% is the wrong answer.
The DeLuca / Mitchell flare-up rule
Under DeLuca v. Brown (1995) and Mitchell v. Shinseki (2011), the examiner must account for additional loss of motion during flare-ups and after repetitive use — not just your range on a good day in a quiet exam room. Describe your worst days. That is what these cases require the examiner to capture.
Common knee conditions and what they support
- Osteoarthritis / degenerative joint disease — the most common. X-ray- confirmed arthritis with painful, limited motion drives 5260/5261 plus the § 4.59 floor.
- Meniscus tear — MRI-confirmed; locking and effusion support DC 5258, and post-surgical residuals support DC 5259.
- ACL / ligament injury — the classic basis for instability under DC 5257; a brace and giving-way episodes are the key facts.
For the full schedule, the medical background, and the rater mistakes to watch for, the knee condition guide carries every diagnostic code in detail, including post-surgical (DC 5055) ratings.
How to file a knee claim that captures all the ratings
- Get imaging on file. An X-ray confirming arthritis or an MRI confirming a meniscal/ligament injury is the diagnostic anchor.
- Establish the in-service link. Service treatment records for the original injury, or a buddy statement describing it and the continuity of symptoms since. The buddy statement guide has the template.
- File VA Form 21-526EZ claiming the knee condition, and explicitly note instability if your knee gives way — that is what gets DC 5257 addressed.
- Prepare for the C&P exam. Read the Knee DBQ field guide so you know which phrases map to flexion, extension, and instability, then run the C&P Exam Prep tool for your specific codes.
- Check the decision letter. If it addressed only one of the three codes, that is a Supplemental Claim issue — the others were not properly considered.
Don't downplay your worst days at the exam
“I just take ibuprofen and push through” and “it only gives out occasionally” are the phrases that cost veterans tiers. The schedule is built on frequency, flare-up severity, and brace dependence. Be specific and honest about the bad days — the Knee DBQ guide lists exactly what to say and what to avoid.
If both knees are involved: the bilateral factor
When both knees are service-connected, 38 CFR § 4.26 adds the bilateral factor: the VA combines the two knee ratings, adds 10% of that combined value, and only then combines with the rest of your disabilities. It is automatic and easy to miss on a decision letter — verify it was applied if you have ratings on both sides. The Claim Coach and the math calculator both account for it.
Quick answers
Can I get two VA ratings for the same knee?
Yes. Under 38 CFR § 4.71a, limitation of flexion (DC 5260) and limitation of extension (DC 5261) can each be rated separately on the same knee, and recurrent subluxation or lateral instability (DC 5257) is a third separate rating because it compensates a different functional loss. VA General Counsel precedent opinions (VAOPGCPREC 23-97 and 9-2004) confirm that instability and limitation of motion are not "pyramiding" and may be combined. So a single knee can carry up to three ratings that stack under § 4.25.
How does the VA measure knee range of motion?
With a goniometer. Normal knee flexion is 0 to 140 degrees and normal extension is 0 degrees. The C&P examiner must measure active and passive motion, weight-bearing and non-weight-bearing, and compare to the opposite knee — the rule from Correia v. McDonald (2016). If the exam did not use a goniometer or did not test the opposite knee, it is inadequate and grounds for a new exam.
What are the knee diagnostic codes and their ratings?
DC 5260 (limitation of flexion): 45 degrees = 10%, 30 degrees = 20%, 15 degrees = 30%. DC 5261 (limitation of extension): 10 degrees = 10%, 15 degrees = 20%, 20 degrees = 30%, 30 degrees = 40%, 45 degrees = 50%. DC 5257 (instability/subluxation): slight = 10%, moderate = 20%, severe = 30%. DC 5258 (dislocated cartilage with locking, pain, and effusion) = 20%. DC 5259 (symptomatic removal of cartilage) = 10%. DC 5055 covers knee replacement.
What is the § 4.59 painful motion rule?
Under 38 CFR § 4.59, a joint that is actually painful on motion is entitled to at least the minimum compensable rating — 10% for the knee — even if range of motion is otherwise full. The Court reinforced this in Burton v. Shinseki (2011) and Petitti v. McDonald (2017). So if bending or straightening your knee hurts, you should not be rated 0%.
Do both knees get a bilateral bonus?
Yes. When both knees are service-connected, the bilateral factor under 38 CFR § 4.26 adds 10% of the combined value of the bilateral disabilities before they are combined with the rest. It is a small but real bump that the VA is required to apply automatically when both sides are rated.
What evidence wins a knee claim?
A current diagnosis (often osteoarthritis, meniscus tear, or instability after an ACL injury), service records or a buddy statement showing the in-service injury or onset, imaging (X-ray showing arthritis, MRI showing meniscal or ligament damage), and a C&P exam with proper goniometer measurements that capture pain, instability, and flare-up limitation. Describe flare-ups and giving-way specifically — those drive the higher tiers.
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Educational content only. This is not legal, medical, or financial advice. Always consult an accredited VSO or VA-accredited attorney for claim-specific guidance. CFR citations: 38 CFR § 4.71a (DC 5055, 5256–5263), § 4.59 (painful motion), § 4.40 / § 4.45 (functional loss factors), § 4.14 (pyramiding), § 4.25 (combined ratings), § 4.26 (bilateral factor). Court and GC precedent: Correia v. McDonald (2016), DeLuca v. Brown (1995), Mitchell v. Shinseki (2011), Burton v. Shinseki (2011), Petitti v. McDonald (2017), VAOPGCPREC 23-97 and 9-2004. Rate values from va.gov/disability/compensation-rates (FY2026, effective Dec 1, 2025).