38 CFR § 4.21
Application of rating schedule
November 5, 2020
In view of the number of atypical instances it is not expected, especially with the more fully described grades of disabilities, that all cases will show all the findings specified. Findings sufficiently characteristic to identify the disease and the disability therefrom, and above all, coordination of rating with impairment of function will, however, be expected in all instances.
[41 FR 11293, Mar. 18, 1976]