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Not Otherwise Specified (or NOS) is a subcategory in systems of disease/disorder classification such as ICD-9, ICD-10, DSM-IV, and many others. It is generally used to note the presence of an illness where the symptoms presented were sufficient to make a general diagnosis, but where a specific diagnosis was not made. The DSM-IV, for example, "applies the term not otherwise specified (NOS) to a disorder or disturbance that does not meet the criteria for the specific disorders already discussed".〔Patricia G. O'Brien, Winifred Z. Kennedy, M.S.N., R.N., Karen A Ballard, M.A., R.N., ''Psychiatric Mental Health Nursing'' (2012), p. 501.〕 The term was introduced because "it is sometimes impossible for the practitioner completing the diagnostic assessment to categorize all the symptoms that a client is experiencing into one diagnostic category".〔Sophia F. Dziegielewski, ''DSM-IV-TR in Action'' (2013), p. 50-51.〕 In the context of mental health diagnoses, four situations have been outlined for which such a diagnosis may be considered appropriate: It is noted, however, that the use of an NOS classification invites scrutiny when billing or seeking reimbursement for practitioners.〔 Specific examples of this diagnosis include: * DD-NOS, depressive disorder * ED-NOS, eating disorder * MD-NOS, mood disorder * PD-NOS, personality disorder * PDD-NOS, pervasive developmental disorder * PTCL-NOS, peripheral T-cell Lymphoma * Adenocarcinoma not otherwise specified * Psychotic disorder not otherwise specified The phrase is also used within the List of UN numbers, where it refers to a generic entry, e.g. "UN 1993: Flammable liquid, N.O.S.". ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Not Otherwise Specified」の詳細全文を読む スポンサード リンク
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