Rating Schedules and Why Combined Ratings Are Not Added
The schedule for rating disabilities in 38 CFR Part 4 assigns percentages representing average impairment in earning capacity, organized by body system and identified by diagnostic code. Multiple ratings are combined under the table in 38 CFR 4.25 rather than added: each rating applies to the efficiency remaining after the preceding one. Disabilities of paired extremities receive an additional bilateral factor, and the final combined value is rounded to the nearest ten percent.











