Understanding Your Knee DBQ

What this form is

The Knee and Lower Leg DBQ is the medical evidence form that turns "my knee doesn't bend right" into something VA can actually rate. It can be completed by a VA examiner at a Compensation & Pension (C&P) exam, or by your own private physician. Either way, it's the single document that most directly determines your rating percentage — which is why it's worth understanding before you walk into the exam room, not after you get a decision letter that doesn't match what you expected.

What the DBQ actually measures

Diagnosis and history. Which knee condition(s) are being evaluated, how long you've had them, and any surgical history.

Range of motion (ROM) — the core of the form. The examiner measures your knee's flexion (bending) and extension (straightening) with a goniometer, in degrees. This happens in two ways that matter separately:

• Active ROM — how far you can move the knee yourself
• Passive ROM — how far the examiner can move it for you

Both get recorded, and both can differ. A knee that you can only bend to 40 degrees on your own but the examiner can push to 50 degrees passively tells VA something different than a knee that's genuinely capped at 40 either way.

Pain on motion. The examiner notes whether motion is painful, and — critically — at what point in the range the pain starts. Pain that begins early in the motion (say, at 20 degrees of flexion) is treated differently than pain that only shows up at the end range.

Testing after repetitive use. This is a step that gets skipped more often than it should. The DBQ calls for the examiner to test ROM again after repetitive motion, to capture whether your knee loses additional function with use — because a single clean measurement taken cold, first thing in the exam, doesn't reflect how your knee performs on a bad day or after activity.

Flare-ups. The form asks whether you experience flare-ups and, if so, to estimate the additional functional loss during one — in degrees of motion lost, if possible. This section depends heavily on you describing your flare-ups clearly in the moment, since the examiner isn't there to witness one.

Muscle strength, joint stability, and other findings. Strength testing (graded on a standard scale), stability testing for the ligaments (ACL, PCL, MCL, LCL), evidence of meniscus problems, ankylosis (a knee fused or locked in position), and use of assistive devices (brace, cane) all get recorded.

How this maps to your rating

VA rates knee flexion and extension limitations separately under 38 CFR 4.71a, using two diagnostic codes:

Diagnostic Code 5260 — Limitation of Flexion

Diagnostic Code 5261 — Limitation of Extension

A few things worth knowing about how these numbers get used:

• The painful motion rule. Even if your ROM doesn't reach the degree threshold for a compensable rating, VA is required to grant at least a 10% rating if motion is painful — this comes from Mitchell v. Shinseki and covers factors like weakness, pain during motion, and difficulty with sitting/standing. If your DBQ documents pain on motion but the degree numbers alone would round to 0%, that painful-motion finding still matters.
• The functional loss rule. Beyond the raw degree measurements, VA is supposed to account for how the condition affects real functioning — pain severity during flare-ups, how often they happen, and any additional loss of motion during a flare-up or after repetitive use. This is the DeLuca line of case law, and it's the reason the flare-up and post-repetition sections of the DBQ exist. A DBQ that skips these sections isn't just incomplete paperwork — it can mean your rating is based on your knee's best moment rather than its typical one.
• Flexion and extension can be rated separately. If your knee has limitations in both directions, you may be entitled to separate ratings under 5260 and 5261 for the same knee, not just one or the other.

What "good" documentation looks like — and what tanks a claim

A strong DBQ has active and passive ROM recorded, notes exactly where pain starts in the range, includes post-repetitive-use testing, and captures a specific, numbers-based estimate of flare-up impact rather than a vague "veteran reports flare-ups."

A weak one — the kind that leads to a lower rating than the condition warrants — usually has one or more of these gaps: no repetitive-use testing, no attempt to quantify flare-up loss, ROM recorded once with no mention of pain onset point, or a rushed exam where the veteran wasn't asked (or didn't think to describe) what a bad day actually looks like.

That last point is the one you have the most control over. The exam only captures what gets said and tested in the room — see the C&p exam prep guide for how to make sure nothing gets left out.

What's next

With the DBQ itself understood, the next piece is preparing for the actual exam — what to expect, what to say, and what to bring — covered in the C&P Exam Prep guide.