This is one of the best links I've found regarding the subject matter ...

Complex PTSD - PTSD: National Center for PTSD

While the gods that write the Psychiatric Bible known as the DSM-V are slow to add C-PTSD to their book, Judith Herman first spoke of it in her book titled Trauma & Recovery (1992), and most professionals that specialize in treating trauma related mental health issues have been embracing it ever since - even altering their treatment approaches to effect better outcomes for their clients that are unfortunate enough to be afflicted with it.

Disorders of Extreme Stress Not Otherwise Specified (DESNOS) and Developmental Trauma Disorder (DTD) are also a couple of other suggested names for it because it does present an extra array of issues to be overcome than regular PTSD, especially for survivors of domestic violence and child abuse.

With that being said, this is in no way meant to minimize the seriousness of PTSD, both are very bad to have and often very difficult to heal and recover from.

Sincerely,
Pfrog!