The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) is the 2013 update to the American Psychiatric Association's (APA) classification and diagnostic tool. In the United States the DSM serves as a universal authority for psychiatric diagnosis.
Unfortunately the ICD-10 has yet to recognize dermatillomania as a unique disorder:
ICD-10 is the 10th revision of the International Statistical Classification of Diseases and Related Health Problems, a medical classification list by the World Health Organization (WHO).

Skinpick (Also has a test)
Skinpicking support
The Canadian BFRB

A couple of bloggers
Before I ruin myself
Diary of a skinpicker
Kicking my dermatillomania
Reality just hit

Pick pick pick

Make sure to also check out trichstop for help for the related Trichotillomania: