How VA rates knee conditions
Range of motion is one part of the evaluation. Flexion and extension can be evaluated separately when the evidence supports distinct limitations. Instability, meniscal disorders, and other diagnoses have additional criteria. Multiple ratings are not automatic, and the same impairment cannot be counted twice.
The VA DBQ uses 140° as the flexion reference and 0° as full extension. This is not a target you should force your knee to reach.
Listed flexion criteria: DC 5260
Flexion is the available bend. Smaller endpoints mean less bending.
| Bending limited to | Listed rating |
|---|---|
| 60° | 0% |
| 45° | 10% |
| 30° | 20% |
| 15° | 30% |
Listed extension criteria: DC 5261
An extension deficit is the amount short of straight. Larger deficits mean more loss of straightening.
| Short of straight by | Listed rating |
|---|---|
| 5° | 0% |
| 10° | 10% |
| 15° | 20% |
| 20° | 30% |
| 30° | 40% |
| 45° | 50% |
These tables are educational schedule references, not a decision on service connection, painful motion, or overall compensation.
DBQ and symptom topics to review
Describe what actually happens, without minimizing or exaggerating. A symptom alone does not establish a percentage.
- Measured bending and straightening endpoints for each knee.
- Pain, weakness, fatigue, repeated-use changes, and flare-up frequency and duration.
- Buckling, giving way, falls, swelling, locking, or catching.
- Meniscal or ligament diagnoses, operations, and prescribed braces or mobility aids.
- Effects on standing, walking, stairs, kneeling, and work.
What may happen in the exam room
The clinician may measure active and passive motion, consider weight-bearing and nonweight-bearing findings, assess repeated use, and evaluate stability when appropriate. Testing depends on your condition and safety; this animation is not an exam protocol.
Measurements and findings to understand
Keep the examiner's initial measurements, additional loss after repeated use, flare-up estimates, and evidence of instability distinct. The motion illustration does not diagnose ankylosis, rate instability, or calculate a bilateral factor.
Questions the examiner may cover
- When did the symptoms begin, and how have they changed?
- What happens during a flare-up, how often, and for how long?
- Which activities are limited, and what happens after repeated use?
- Have you had falls, swelling, locking, surgery, or prescribed support?
Functional-impact language to think through
Use your own observations: the activity, what limits it, frequency, duration, and the support or recovery you need. Do not copy a rating percentage into your account of symptoms or estimate a measured angle from this model.
Preparation notes
- Organize treatment, surgery, and prescribed-device records.
- Describe actual falls, buckling, swelling, and activity limits.
- If the other knee is worsening, document onset, gait changes, and treatment; a clinician must support a secondary causation or aggravation theory.
- Do not alter treatment or force a movement for an examination.
DeLuca and flare-up notes
Describe functional loss during repeated use and flare-ups accurately. The clinician considers the available evidence when estimating additional limitations. Pain onset alone is not automatically the measured endpoint.
How secondary service connection works
A secondary condition is not automatic. The evidence must connect a current diagnosed disability to an already service-connected condition or its medically indicated treatment.
- Basic evidence: a current diagnosis, an already service-connected primary condition, and competent evidence linking the two.
- Two theories: the primary condition or its treatment caused the new disability under 38 CFR § 3.310(a), or aggravated a pre-existing non-service-connected disability under § 3.310(b). An opinion should address both when the record raises both; causation alone may be inadequate (El-Amin).
- Treatment pathway: service-connected condition → medically indicated medication or surgery → documented adverse effect → current diagnosis. Pharmacy records, start and stop dates, and a treating clinician’s reasoning matter; medication use alone does not establish the connection.
- Weight as an intermediate step: obesity or weight gain can be part of the causal chain under VAOPGCPREC 1-2017, but obesity itself is not a disability for a VA rating.
- Standard of proof: VA applies the “at least as likely as not” standard and reasonable-doubt rule under 38 CFR § 3.102. This guide identifies evidence questions; it does not tell you what to file.
- Avoid pyramiding: 38 CFR § 4.14 prohibits rating the same manifestation twice. Mental-health diagnoses generally use one § 4.130 evaluation for the same occupational and social impairment, and insomnia may be a symptom rather than a separate disability.
- Presumptives are different: qualifying service may make chronic rhinitis, chronic sinusitis, hypertension associated with herbicide exposure, or type 2 diabetes presumptive. OSA is not a PACT Act presumptive. Check current eligibility before seeking nexus evidence for a condition the law may already presume.
- DBQ is not a nexus: a DBQ documents diagnosis and severity; it does not necessarily establish service connection. A VA-accredited VSO can help with filing strategy at no charge.
Other medically indicated treatments for a service-connected condition may support a secondary theory when a clinician documents the adverse effect in this veteran.
Sources: 38 CFR § 3.310 · 38 CFR § 4.14 · VA-accredited representatives
Possible secondary conditions to discuss with a qualified reviewer
These are educational issue-spotting notes, not medical nexus opinions. VA decides service connection.
Review when documented altered gait is medically linked to a diagnosed right-hip disability.
Compensatory use is not presumed; longitudinal records and clinician reasoning are needed.
Review with documented gait mechanics and individualized medical support.
Review when instability or altered loading is documented and medically linked to a diagnosed ankle disability.
Review when documented altered gait is medically linked to a diagnosed left-hip disability.
Compensatory use is not presumed; longitudinal records and clinician reasoning are needed.