Published VA rule book · 38 CFR § 4.71a · DC 5257 · not your rating · we do not file
VA rating for knee instability, DC 5257: 10%, 20%, 30%
VA rates knee instability under diagnostic code 5257 in the VA rating schedule, 38 CFR § 4.71a. The schedule lists 10%, 20%, or 30%. The table below quotes each published line word for word.
Also called: knee subluxation, unstable knee. Rule-book name: Knee, other impairment of.
Last checked against eCFR on 2026-10-10 (eCFR issue 2026-08-27). Official text on eCFR.
The published lines for DC 5257
| Percent in the rule book | Published words (quoted) |
|---|---|
| 30% | Unrepaired or failed repair of complete ligament tear causing persistent instability, and a medical provider prescribes both an assistive device ( e.g., cane(s), crutch(es), walker) and bracing for ambulation |
| (a) Sprain, incomplete ligament tear, or repaired complete ligament tear causing persistent instability, and a medical provider prescribes a brace and/or assistive device ( e.g., cane(s), crutch(es), walker) for ambulation. | |
| 20% | (b) Unrepaired or failed repair of complete ligament tear causing persistent instability, and a medical provider prescribes either an assistive device ( e.g., cane(s), crutch(es), walker) or bracing for ambulation |
| 10% | Sprain, incomplete ligament tear, or complete ligament tear (repaired, unrepaired, or failed repair) causing persistent instability, without a prescription from a medical provider for an assistive device ( e.g., cane(s), crutch(es), walker) or bracing for ambulation |
| 30% | A diagnosed condition involving the patellofemoral complex with recurrent instability after surgical repair that requires a prescription by a medical provider for a brace and either a cane or a walker |
| 20% | A diagnosed condition involving the patellofemoral complex with recurrent instability after surgical repair that requires a prescription by a medical provider for one of the following: A brace, cane, or walker |
| 10% | A diagnosed condition involving the patellofemoral complex with recurrent instability (with or without history of surgical repair) that does not require a prescription from a medical provider for a brace, cane, or walker |
Notes in the rule book
- Note (1): For patellar instability, the patellofemoral complex consists of the quadriceps tendon, the patella, and the patellar tendon.
- Note (2): A surgical procedure that does not involve repair of one or more patellofemoral components that contribute to the underlying instability shall not qualify as surgical repair for patellar instability (including, but not limited to, arthroscopy to remove loose bodies and joint aspiration).
Common questions
What percentages does VA list for knee instability?
Under diagnostic code 5257 (38 CFR § 4.71a), the rule book lists 10%, 20%, or 30%. Which line fits is decided by VA from the evidence. This page is not your rating.
Where do these words come from?
They are quoted from the public eCFR copy of 38 CFR § 4.71a, Schedule of ratings—musculoskeletal system. We link the official page so you can check it.
How can I use this page?
Read each line, then look at your own records. Note which records talk about the same things the rule book names. Only write what is true for you. You, or a free accredited representative, file with VA.
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Good to know
This page quotes the public VA rule book. It is not your rating and not your pay. We do not say you have this condition. We do not file. You, or a free accredited representative, file with VA.
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