When a pre-existing condition becomes disabling because of a work related incident, the resulting disability is compensable regardless of the degree of such aggravation.  Any worsening of the pre-existing condition by the employment injury provides the basis for benefits. 

(see A.M. and Veterans Administration November 21 2014; Docket 14-320.)

Pre-existing conditions and a scheduled award.

In determining entitlement to a scheduled award, pre-existing impairment to the scheduled member is to be included.  OWCP is not to apportion an impairment rating between pre-existing conditions and a work related injury. 

(see A.H. and the Postal Service November 18 2014; Docket 14-1535.)