Other Specified Dissociative Disorder
Dissociative Disorders that do not fit into other categories in the DSM-5 include both dissociative disorder not otherwise specified (DDNOS, now known as other specified dissociative disorder (OSDD), and unspecified dissociative disorder meant to be used in emergency situations. Other specified dissociative disorder is a Dissociative Disorder that has been present for some time, where an individual reports distress impaired functioning due to symptoms. 
- 1 Other Specified Dissociative Disorder (OSDD)
- 2 DSM-5 Criteria
- 3 ICD-10 Criteria
- 3.1 Dissociative Stupor
- 3.2 Trance and Possession Disorders
- 3.3 Dissociative motor disorders
- 3.4 Dissociative convulsions
- 3.5 Dissociative anesthesia and sensory loss
- 3.6 Mixed dissociative [conversion] disorders
- 3.7 Ganser's syndrome
- 3.8 Transient dissociative [conversion] disorders occurring in childhood and adolescence
- 3.9 Other specified dissociative [conversion] disorders
- 3.10 Dissociative [conversion] disorder, unspecified
- 4 Common examples of other specified dissociative disorder
- 5 Diagnosis and treatment
- 6 References
Other Specified Dissociative Disorder (OSDD)
This was formally the DDNOS (dissociative disorder not otherwise specified) category, and many who had this diagnosis now have a diagnosis of dissociative identity disorder if they do experience time-loss (amnesia) and report this to their therapist. :158
As with all dissociative disorders, the condition must cause "clinically significant distress" and/or "impaired functioning in social, occupational, or other significant areas of life must predominate". The clinician must record a reason for this giving diagnosis. :158
Example presentations include:
- Chronic and recurrent syndromes of mixed dissociative symptoms. This category includes identity disturbance association with less than marked discontinuities in sense of self and agency, or alterations of identity or episodes of possession in an individual who reports no dissociative amnesia.
- Identity disturbance due to prolonged and intense coercive persuasion: Individuals who have been subjected to intense coercive persuasion may present with prolonged changes in, or conscious questions of their identity.
- Acute dissociative reactions to stressful events, these can last between a few hours and a month and may include a variety of dissociative symptoms such as micro-amnesias and depersonalization
- Dissociative trance: characterized by an acute narrowing or complete loss of awareness of immediate surroundings that manifest as profound unresponsiveness or insensitivity to environmental stimuli. May may be accompanied by minor stereotyped behaviors of which the individual is unaware and/or that he or she cannot control, as well as transient paralysis or loss of consciousness. The dissociative trance is not a normal part of a broadly accepted collective cultural or religious practice.
All dissociative [conversion] disorders must involve
- No evidence of a physical disorder that can explain the symptoms that characterize the disorder (but physical disorders may be present that give rise to other symptoms).
- Convincing associations in time between the symptoms of the disorder and stressful events, problems or needs. 
- Profound diminution or absence of voluntary movements and speech, and of normal responsiveness to light, noise and touch.
- Maintenance of normal muscle tone, static posture, and breathing (and often limited coordinated eye movements).
Trance and Possession Disorders
F44.3 Either (1) or (2):
- Possession disorder: Conviction that the individual has been taken over by a spirit, power, deity or other person.
- Trance: Temporary alteration of the state of consciousness, shown by any two of:
- Loss of the usual sense of personal identity.
- Narrowing of awareness of immediate surroundings, or unusually narrow and selective focusing on environmental stimuli.
- Limitation of movements, postures, and speech to repetition of a small repertoire.
In addition both criterion 1. and 2. must be unwanted and troublesome, occurring outside or being a prolongation of similar states in religious or other culturally accepted situations. This must not occur at the same time as schizophrenia or related disorders, or mood [affective] disorders with hallucinations or delusions.
Dissociative motor disorders
F44.4 The commonest varieties of dissociative motor disorder are loss of ability to move the whole or a part of a limb or limbs. Paralysis may be partial, with movements being weak or slow, or complete. Various forms and variable degrees of in coordination (ataxia) may be evident, particularly in the legs, resulting in bizarre gait or inability to stand unaided (astasia-abasia). There may also be exaggerated trembling or shaking of one or more extremities or the whole body.
Either (1) or (2):
- Complete of partial loss of the ability to perform movements that are normally under voluntary control (including speech).
- Various or variable degrees of in coordination or ataxia or inability to stand unaided.
F44.5 These are pseudoseizures, they may mimic epileptic seizures but with some differences. Diagnostic criteria:
- Sudden and unexpected spasmodic movements, closely resembling any of the varieties of epileptic seizures, but not followed by loss of consciousness.
- this must not be accompanied by tongue-biting, serious bruising or laceration due to falling, or incontinence of urine.
Dissociative anesthesia and sensory loss
F44.6 Either (1) or (2):
- Partial or complete loss of any or all of the normal cutaneous sensations over part or all of the body (specify: touch, pin prick, vibration, heat, cold).
- Partial or complete loss of vision, hearing or smell (specify).
Anesthetic areas of skin often have boundaries which make it clear that they are associated more with the patient's ideas about bodily functions than with medical knowledge. There may also be differential loss between the sensory modalities which cannot be due to a neurological lesion. Sensory loss may be accompanied by complaints of paraesthesia.
Loss of vision is rarely total in Dissociative Disorders, and visual disturbances are more often a loss of acuity, general blurring of vision, or "tunnel vision". In spite of complaints of visual loss, the patient's general mobility and motor performance are often surprisingly well preserved. Dissociative deafness and anosmia (loss of smell) are far less common than loss of sensation or vision.
Mixed dissociative [conversion] disorders
F44.80 Giving approximate answers to questions, for example 2+2 equals 5.
Transient dissociative [conversion] disorders occurring in childhood and adolescence
F44.82 No description is given for this in the ICD-10 manual.
Other specified dissociative [conversion] disorders
F44.88 Specific research criteria are not given for all disorders mentioned above, since these other dissociative states are rare and not well described. Research workers studying these conditions in detail will wish to specify their own criteria according to the purposes of their study. This includes psychogenic confusion and twilight state.
Dissociative [conversion] disorder, unspecified
F44.9 This has no description but must meet the two dissociative disorder criteria described at the top.
Common examples of other specified dissociative disorder
A person with Other Specified Dissociative Disorder may experience different parts of their personality which are not distinct and separate identities and do not physically take over their body. This is similar to Dissociative Identity Disorder but without the identity alteration. 
A person with Other Specified Dissociative Disorder may experience different parts of their personality, and those parts may physically take over their body but there is no amnesia for the past or present, so the full criteria for dissociative identity disorder is not met.  
Other specified dissociative disorder and dissociative identity disorder both develop from early childhood trauma. dissociative identity disorder may initially present as other specified dissociative disorder, but cannot develop into dissociative identity disorder.
Other specified dissociative disorder is often a diagnosis made when the amnesia prevents full awareness of the symptoms, or before past amnesia is recognized (for example a person may initially believe that most people do not remember most of their childhood).  Dr. Dan Siegel reports that 20% of the population who do not seem to have suffered trauma do not remember their childhood. :7
Diagnosis and treatment
The ISSTD treatment guidelines for dissociative identity disorder also apply to other specified dissociative disorder and the same diagnostic tests should be used.  See the dissociative identity disorder page for further details.
Dr. Alison Miller (2012) describes a few differences in treatment and states between [dissociative identity disorder] and OSDD, stating that OSDD is often the intended result of ritual abuse, rather than dissociative identity disorder. 
- Miller, Alison (2012). Healing the Unimaginable: Treating Ritual Abuse and Mind Control. ISBN 9781855758827.
- Spiegel, David; Loewenstein, Richard J. Lewis-Fernández, Roberto, Sar, Vedat, Simeon, Daphne, Vermetten, Eric, Cardeña, Etzel, Dell, Paul F. (2011). Dissociative disorders in DSM‐5. Depression and anxiety, volume 28, issue 9, page 824-852 also cited as Depression and Anxiety 28(12) E17-E45. (doi:10.1002/da.20874)
- Diagnostic and Statistical Manual of Mental Disorders-5.
- ICD-10 Classification of Mental and Behavioural Disorders" (PDF). World Health Organization
- ISSTD International Society for the Study of Trauma and Dissociation.
- Siegel, Daniel J. (2008). The neurobiology of "we" [how relationships, the mind, and the brain interact to shape who we are]. ISBN 159179949X. [Boulder, CO]: Sounds True
- International Society for the Study. Guidelines for Treating Dissociative Identity Disorder in Adults, Third Revision. Journal of Trauma & Dissociation, volume 12, issue 2, 28 February 2011, page 115–187. (doi:10.1080/15299732.2011.537247)