1 Short description: Enlargement lymph nodes. 2  ICD-9-CM 785.6 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 785.6 should only be used for claims with a date of service on or before September 30, 2015.
Freebase (0.00 / 0 votes) Rate this definition: Hyperfocal distance. In optics and photography, hyperfocal distance is a distance beyond which all objects can be brought into an acceptable focus.
The picture below illustrates how to focus the lens at the hyperfocal distance for f/8 and f/16. When the lens has a distance scale but doesn't have a depth of field scale. This picture shows the distance scale on a 28mm-80mm zoom lens for a 35mm camera. The lens is set at the 28mm focal length.