Many experts now refer to a condition called complex post traumatic stress disorder (CPTSD) to describe a set of symptoms for which there was previously not a satisfactory diagnosis. The condition can express itself in a similar way to borderline personality disorder (BPD) and post traumatic stress disorder (PTSD) but is sufficiently distinct from these to warrant its own name.
Due to the above, it is thought that many individuals have been wrongly diagnosed with PTSD or BPD when a more accurate diagnosis would have been CPTSD.
Complex post traumatic stress disorder was not included as a formal diagnosis in ICD 10, but is likely to be included in ICD 11. (ICD stands for International Classification of Diseases)