Common knee diagnostic codes
- DC 5260 — Limitation of Flexion: 0% / 10% / 20% / 30%.
- DC 5261 — Limitation of Extension: 0% / 10% / 20% / 30% / 40% / 50%.
- DC 5257 — Instability: slight 10%, moderate 20%, severe 30%.
- DC 5258 — Dislocated semilunar cartilage: 20%.
Bilateral knee advantage
If both knees are service-connected, the bilateral factor adds 10% to the combined knee subtotal before combining with other conditions. This often turns two modest knee ratings into a meaningful pay increase.
Secondary claims
An altered gait from a service-connected knee can lead to secondary claims for the opposite knee, hip, ankle, or low back. Document compensatory gait with your treating provider.