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Diagnostic Code 5256: Knee, ankylosis of
Musculoskeletal System · 38 CFR §4.71a · All codes in this system
| Evaluation criteria | Rating |
|---|---|
| Extremely unfavorable, in flexion at an angle of 45° or more | 60% |
| In flexion between 20° and 45° | 50% |
| In flexion between 10° and 20° | 40% |
| Favorable angle in full extension, or in slight flexion between 0° and 10° | 30% |
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Source: eCFR Title 38, 38 CFR §4.71a, current as of 2026-11-05. Criteria text is the regulatory text, reproduced verbatim for reference; it is not legal advice.