No, however both are caused from a traumatic childhood.
"The question remains what to do with the entity called Complex PTSD. Is it a distinct disorder from PTSD, a subtype of PTSD, or an overarching disorder covering PTSD? In terms of the current proposal of DSM-5, one possible solution seems to consider it a subtype of PTSD. Nevertheless, such a solution does not prevent new questions from emerging. If it is a subtype, then is it the same or different from dissociative subtype of PTSD? Can dissociation address an entire range of symptoms discussed in Complex PTSD including problems related to social, interpersonal, or attachment difficulties? If not, where should these problems be classified? If Complex PTSD is an overarching one, how does it differ from personality disorder of borderline type? Apparently, neither current body of knowledge nor the existing structure of categorization allow a fully integrated conceptualization, which would become an official reference point for all parties studying diverse clinical consequences of developmental trauma."
For more read the conclusion on this page:
http://www.eurojnlofpsychotraumatol.net ... 2/html_100Explained by Structural Dissociation (category trigger)C-PTSD (a newer label) is categorized as secondary structural dissociation - more complex than PTSD. DID is a tertiary structural categorization. DID and C-PTSD (DESNOS) do share a common central psychobiological pathway that is dissociative. C-PTSD is also not the same as DDNOS-1 even though both are categorized under secondary structural dissociation.
1) Primary Structural Dissociation (PSD)
PSD - Involves one EP and one ANP such as found in simple acute stress disorder and PTSD. The ANP is detached and numb, characterized by partial or complete amnesia of the trauma. EP is usually limited in scope compared to ANP and is hyper-amnesic and re-experiences trauma.
2) Secondary Structural Dissociation. (SSD)
SSD - Includes trauma based DDNOS,
complex PTSD and borderline personality disorder. This is characterized by dividedness of two or more defensive subsystems. For example, there may be different EP's who are devoted to flight, fight, freeze, total submission and so on.
3) Tertiary Structural Dissociation (TSD)
This is
Dissociative Identity Disorder. Two or more ANP perform aspects of daily living, such as work, child-rearing. There must also be 2 or more EP.
Structural Dissociation and Complex PTSD
http://www.onnovdhart.nl/articles/jts_c ... 20ptsd.pdf