Diagnostic Code 5220 · 38 CFR §4.71a
This code covers ankylosis of the index finger combined with another finger (middle, ring, or little) but not the thumb. The index finger is important for pointing, typing, and precision grip, so its loss of motion combined with another finger creates moderate hand impairment.
| Rating | Criteria |
|---|---|
| 20% | 30% — Dominant hand: index finger plus another (not thumb) |
| 30% | 20% — Non-dominant hand: index finger plus another (not thumb) |
Medical records documenting complete loss of motion (ankylosis) in the affected finger joints. X-rays or imaging showing joint fusion or fixation. Range of motion testing showing zero degrees of motion. Documentation of whether ankylosis is in favorable or unfavorable position. Service treatment records or nexus opinion linking the condition to military service.