DSM-5 SSD proposals

 Shortlink for DSM-5 SSD proposals: http://wp.me/PKrrB-hT

The material below predates the publication of draft proposals by the DSM-5 Somatic Symptom Disorders Work Group on February 10, 2010 (first draft); publication of the second draft on May 4, 2011 and publication of the third draft on May 2, 2012.

 

What changes has the DSM-5 Work Group for Somatic Symptom Disorders proposed so far?

[For ease of reference this material is being collated on one page.]

There is a degree of correspondence between the current Somatoform Disorders section in DSM-IV and the equivalent section in ICD-10: Chapter V. If the DSM-5 Task Force were to approve radical changes to its Somatoform Disorders categories, would ICD Revision still aim to achieve congruency between these sections of the two systems?

We have no information on how closely the ICD Topic Advisory Group for the revision of Chapter V: Mental and Behavioural Disorders (TAG MH) is collaborating with the DSM-5 Somatic Symptom Disorders Work Group over the revisions of their respective “Somatoform Disorders” sections.

Until the iCAT platform is launched and the ICD-11 Alpha Draft published (ETA May 2010), it is not apparent what changes TAG MH might be proposing for the structure, content and classifications of its corresponding Chapter V: F45 – F48 codes, or to what extent ICD Revision intends that any changes to its own “Somatoform Disorders” codings will mirror Task Force proposals for DSM-5.

 

This table sets out how the two classification systems currently correspond for Somatoform Disorders.

Current DSM-IV Codes and Categories for Somatoform Disorders and ICD-10 Equivalents

Source: Mayou R, Kirmayer LJ, Simon G, Kroenke K, Sharpe M: Somatoform disorders: time for a new approach in DSM-V. Am J Psychiat. 2005;162:847–855.

This is the first report that the Somatic Symptom Disorders (aka Somatic Distress Disorders) Work Group published:

Report of the DSM-V Somatic Distress Disorders Work Group

November 2008
Joel Dimsdale, M.D.

The Somatic Distress Disorders Work Group has focused on the following themes:

1. Identification of external advisors and establishing liaisons with other work groups. Because of the prominence of somatic distress disorders in non-psychiatric settings, our work group has sought advisors from additional fields of medicine such as primary care, pediatrics, and neurology. Because of potential overlap with other disorders, we have sought liaisons with other work groups in the areas of mood disorders, personality disorders, childhood/adolescent disorders, and anxiety disorders. We have also had interactions with some of the cross-cutting study groups, particularly the psychiatric general medical interface and the lifespan developmental groups. It is our intention to utilize these advisors and liaisons more heavily once our general rubric of disorders (see item #3 below) is more established.

2. Development of data analysis proposals. One of the challenging issues in reviewing evidence on somatic distress is that somatic distress disorders are rarely considered by psychiatric epidemiology. As a result, the work group has proposed a number of small data analysis projects, with the goal of informing issues such as: the relationship between hypochondriasis and OCD; comorbidities in conversion disorder; the prevalence of somatoform disorders as determined from insurance claims; the relationship of pain disorders to global functioning and axis I disorders; reports from psychiatrists and primary care physicians regarding potential underuse of these diagnostic codes; and dimensional approaches as applied to somatic distress.

3. Developing a draft schema for organizing somatic distress disorders. The group is considering a restructured diagnostic grouping for DSM-V under the general rubric of “Somatic Symptom Disorders.” The latter would include Psychological Factors Adversely Affecting General Medical Conditions, Complex Somatic Symptom Disorders (which groups together somatization disorder, undifferentiated somatoform disorder, hypochondriasis, pain disorder, and neurasthenia), Factitious Disorder, and Functional Neurologic Symptoms/Conversion Disorder. The group is also considering the utility of an Acute Somatic Symptom Disorder – either as part of the Somatic Symptom Disorder rubric or perhaps covered as a variant of Adjustment Disorders. Body Dysmorphic Disorder is being addressed primarily by another work group

This was followed, in April 2009, by this brief update:

Report of the DSM-V Somatic Distress Disorders Work Group

April 2009
Joel Dimsdale, M.D.

The Somatic Symptoms Workgroup (SSW) is examining the mental disorders that are marked principally by their somatic symptoms. Patients with these disorders are commonly seen in non-psychiatric settings, but are rather rare in psychiatric practice settings.

Most of these disorders are organized in the DSM-IV under the heading of “Somatoform Disorders.” However that term itself is confusing to most medical professionals. Thus, the group is exploring different names that may more clearly denote the diagnostic territory of these disorders. “Somatic Symptom Disorders” is the current term under discussion.

The workgroup is exploring whether some of these disorders have so many common features that they may be meaningfully combined into a smaller number of disorders. Factitious disorders, for instance, in DSM–IV-TR, have 3 subtypes, and it little evidence has been found that value is gained by having all of these subtypes in the manual.

More controversial is a proposal the group has been examining, which would combine somatization disorder, hypochondriasis, pain disorder and undifferentiated somatoform disorder into one overarching disorder (tentatively entitled, “complex somatic symptom disorder”). The hallmark of this disorder would be somatic symptoms associated with significant distress and disability. In some cases the patient’s response is disproportionate and maladaptive. Our group is exploring the potential for eliminating criteria such as “medically unexplained symptoms” as a marker of this disorder because such considerations are commonly unreliable, divisive between doctor and patient and lead to mind-body dualism.

The SSW is considering the placement of various disorders either within this grouping or moving them elsewhere in the nomenclature. We are considering importing into this section what was called in DSM–IV, “Psychological factors affecting general medical condition” (PFAGMC). There is active discussion about the contours of this disorder which is actually one of the more commonly diagnosed disorders with a decidedly somatic focus. On the other hand, the SSW has suggested that Body Dysmorphic Disorder might be better conceptualized within the framework of OCD. There is active discussion about the contours of Conversion disorder, but no recommendations have yet been made.

No further reports have been issued by the Somatic Symptom Disorders Work Group since April ’09, but an Editorial published in the Journal of Psychosomatic Research (for which SSD Work Group member, Francis Creed, is a co-editor) expands on the April report.

The Editorial: Dimsdale J, Creed F: The proposed diagnosis of somatic symptom disorders in DSM-V to replace somatoform disorders in DSM-IV – a preliminary report was published on behalf of the Somatic Symptom Disorders Work Group in the June ’09 edition of J Psychosom Res, 66 (2009) 473–476.

Read the free text on the Journal of Psychosomatic Research site

or Open the PDF here: Dimsdale Creed DSM-V SSD Work Group Editorial

Under the section “Psychological factor affecting a general medical condition”, towards the end of the Editorial, Dimsdale and Creed write that some authors have recommended wider use of this existing DSM-IV category as “a diagnosis that encompasses the interface between psychiatric and general medical disorders”, citing the Mayou R, Kirmayer LJ, Simon G, Kroenke K, Sharpe M paper: Somatoform disorders: time for a new approach in DSM-V. Am J Psychiat. 2005;162:847–855.

The Editorial reports that the [Psychological factors affecting a general medical condition] diagnosis “has been underused because of the dichotomy, inherent in the ‘Somatoform’ section of DSM-IV, between disorders based on medically unexplained symptoms and patients with organic disease”, and that by doing away with the “controversial concept of medically unexplained”, the proposed classification [Somatic Symptom Disorders] might diminish the problem.

The conceptual framework the Work Group was proposing, at that point:

     ”…will allow a diagnosis of somatic symptom disorder in addition to a general medical condition, whether the latter is a well-recognized organic disease or a functional somatic syndrome such as irritable bowel syndrome or chronic fatigue syndrome.”

The Editorial goes on to list a variety of different subtypes included within the diagnosis of “Psychological factors affecting a general medical condition” including a specific psychiatric disorder which affects a general medical condition; psychological distress in the wake of a general medical condition and personality traits or poor coping that contribute to worsening of a medical condition.

The authors suggest that these might be considered in the rubric “adjustment disorders” but that the location of this type of adjustment disorder had yet to be settled within the draft of DSM-5 and that the text and placement for these different variants of the interface between psychiatric and general medical disorders was still under review.

The authors conclude that the current structure proposed for DSM-V differed considerably from that of the somatoform disorders in DSM-IV; that the article gives an indication of a likely new structure, but that much remains to be done before this is finalised. The next steps would include defining the criteria for disorders and the relevant dimensions which may be used.

[Current use of the diagnosis "Psychological Factors Affecting Medical Condition" in DSM-IV is set out here ]

Several Letters to the Editor in response to this Editorial have been published in the Jan 2010 edition of J Psychosom Res and are referenced at the end of this posting; these require a subscription for access.

The recently published Editorial: Is there a better term than “Medically unexplained symptoms”? Creed F, Guthrie E, Fink P, Henningsen P, Rief W, Sharpe M and White P (Journal of Psychosom Research: Volume 68, Issue 1, Pages 5–8 January 2010) discusses the deliberations of the EACLPP study group. The Editorial also includes references to the DSM and ICD revision processes.

References to DSM and ICD revision in:

Is there a better term than “Medically unexplained symptoms”? J Psychoso Res: Volume 68, Issue 1, Pages 5–8.

[Extract]

Introduction

The European Association of Consultation Liaison Psychiatry and Psychosomatics (EACLPP) is preparing a [White paper of the EACLPP Medically Unexplained Symptoms study group by Peter Henningsen and Francis Creed] document aimed at improving the quality of care received by patients who have “medically unexplained symptoms” or “somatisation” [1]. Part of this document identifies barriers to improved care and it has become apparent that the term “medically unexplained symptoms” is itself a barrier to improved care…

…The authors of this paper met in Manchester in May 2009 to review thoroughly this problem of terminology and make recommendations for a better term….The deliberations of the group form the basis of this paper…

[...]

Our priority was to identify a term or terms that would facilitate management – that is it would encourage joint medical psychiatric/psychological assessment and treatment and be acceptable to physicians, patients, psychiatrists and psychologists.

Criteria to judge the value of alternative terms for “medically unexplained symptoms”

Ten criteria were developed in order to judge the value of potential terms which might be used to describe the group of symptoms currently referred to as medically unexplained symptoms. Obviously, this list of criteria does not claim to be exhaustive, but we believe that it captures the most important aspects. The criteria are that the term:

1. is acceptable to patients
2. is acceptable and usable by doctors and other health care professionals, making it likely that they will use it in daily practice.
3. does not reinforce unhelpful dualistic thinking.
4. can be used readily in patients who also have pathologically established disease
5. can be adequate as a stand alone diagnosis
6. has a clear core theoretical concept
7. will facilitate the possibility of multi-disciplinary (medical and psychological) treatment
8. has similar meaning in different cultures
9. is neutral with regard to aetiology and pathology
10. has a satisfactory acronym.

Terms suggested as alternatives for “medically unexplained symptoms”

The group reviewed terms which are used currently or have been proposed for the future. An extensive list was abbreviated to the following 8 terms or categories: The terms we reviewed were:

1. Medically unexplained symptoms or medically unexplained physical symptoms
2. Functional disorder or functional somatic syndromes
3. Bodily distress syndrome/disorder or bodily stress syndrome/disorder
4. Somatic symptom disorder
5. Psychophysical / psychophysiological disorder
6. Psychosomatic disorder
7. Symptom defined illness or syndrome
8. Somatoform disorder

[...]

Implications for DSM-V and ICD-11

There is overlap between the discussion reported here and the discussion currently under way towards the creation of DSM-V. Two of the authors (FC, MS) are also members of the working group on Somatic Distress Disorders of the American Psychiatric Association (APA), which is proposing a new classification to replace the DSM-IV “somatoform” and related disorders. In this working group, similar concerns about the use of the term and concept of “medically unexplained symptoms” have been raised [12]. The current suggestion by the DSM-V work group to use the term “Complex somatic symptom disorder” must be seen as step in a process and not as a final proposal. Unfortunately this term does not appear to meet many of the criteria listed above.

[...]

One major problem for reforming the classification relates to the fact that the DSM system includes only “mental” disorders whereas what we have described above is the necessity of not trying to force these disorders into either a “mental” or “physical” classification. The ICD-10 system has a similar problem as it has mental disorders separated from the rest of medical disorders.

The solution of “interface disorders”, suggested by DSM IV, is a compromise but it is unsatisfactory as it is based on the dualistic separation of organic and psychological disorders and prevents the integration of the disorders with which we are concerned here. This lack of integration affects the ICD classification also. For example functional somatic syndromes (e.g. irritable bowel syndrome) would be classified within the “physical” classification of ICD or Axis III in DSM (gastrointestinal disorders) and omitted from the mental and behavioural chapter entirely [13].

[End Extract]

DSM-5 presentations at The Academy of Psychosomatic Medicine Annual Meeting 2009

In November ’09, The Academy of Psychosomatic Medicine, publishers of Psychosomatics, held its 56th Annual Meeting in Nevada.

Three DSM-5 Work Group members, Francis Creed, Lawson Wulsin and Joel Dimsdale (Chair, Somatic Symptom Disorders Work Group) gave presentations around “Medically Unexplained Symptoms” (MUS) and DSM-5, and DSM-5 proposals. Slides are available, below, for the first two presentations, with text for the third.

This material represents the most recent information around the deliberations of the DSM-5 Work Group that is revising the categories currently under DSM-IV “Somatoform Disorders”.

Award Lectures

Hackett Award — Friday, 12:45pm – 1:45pm

Francis Creed, MD, FRCP: Can We Now Explain Medically Unexplained Symptoms?

      Creed Presentation Slides

       Creed References

[No transcript available]  

Workshops

Workshop 15 — Saturday, 1:45 – 2:45pm

DSM-V for Psychosomatic Medicine: Current Progress and Controversies

Lawson Wulsin, MD, FAPM, DSM V for Psychosomatic Medicine: Current Progress and Controversies

      Wulsin Presentation Slides

[No transcript available]

Joel Dimsdale, MD, FAPM, Update on DSM V Somatic Symptoms Workgroup

       Dimsdale text 

[Text version of slides]

Update on DSM V Somatic Symptoms Workgroup

Workshop #15, APM Annual Meeting, 11-14-09
DSM-V for Psychosomatic Medicine: Current Progress and Controversies

The Somatic Symptoms Workgroup was charged with reviewing most somatoform disorders, psychological factors affecting medical condition, and factitious disorders. There is considerable confusion regarding the diagnostic terminology and a reluctance to use these diagnostic labels. In addition to relying on expert opinion and the research literature, the Workgroup has also been conducting studies in an effort to learn how physicians actually use these diagnostic labels.

These diagnoses are rarely coded. In a study of >1,000,000 Virginia Anthem Blue Cross policy holders, Levenson found that there were fewer than 600 patients with such disorders. Of these 600 patients, the largest group of patients were diagnosed with Psychological Factors Affecting Medical Condition.

Four focus groups were held in San Diego and Edinburgh. Psychiatrists from very different practice settings attended these groups (child psychiatrists, forensic psychiatrists, psychopharmacologists, consultation psychiatrists, psychotherapists). Nonpsychiatrist attendees included neurologists, pediatricians, and gastroenterologists. Using themes identified from the focus groups, an anonymous internet poll was designed. Using mailing lists from a variety of professional organizations, physicians were invited to respond to an anonymous poll.

Three hundred thirty-two physicians responded to the poll. Two thirds were psychiatrists; two-thirds were from the United States. While in general, physicians reported that somatoform patients were relatively rare in their practices (i.e. 0-2%), some physicians reported high prevalence of these patients. Over 30% of the physicians regarded the diagnostic guidelines for pain disorder and somatoform disorder not otherwise specified as “unclear.” Similar numbers of doctors regarded these particular disorders as “not useful.” Physicians were uniform in their opinion that patients disapproved of such diagnostic labels. Respondents also felt that there was a great deal of overlap between somatization disorder, pain disorder, hypochondriasis, and somatoform disorder not otherwise specified. In addition, they felt that that there was overlap between the somatoform disorders and anxiety and depressive disorders.

The Somatic Symptoms Workgroup has been struck by the fact that “medically unexplained symptoms” (MUS) comprise the crucial intellectual underpinning of the large group of somatoform disorders; yet MUS designations are perilous. They foster mind-body dualism; they confuse “undiagnosed” with “unexplained”; they contribute to doctor-patient antagonism; and they base a diagnosis on a negative, rather than positive criteria.

The Workgroup is proposing a series of changes to these disorders. First off, such disorders would be grouped together under one rubric entitled “Somatic Symptom Disorders”, which would include somatoform disorders, factitious disorders, and psychological factors affecting medical condition. Second, because of their many common features, the group is proposing that hypochondriasis, pain disorder, somatization disorder, and undifferentiated somatoform disorder be grouped together as “Complex Somatic Symptom Disorder”, with optional specifyers to designate when the predominant presentation is, for instance, hypochondriasis, etc. MUS is de-emphasized for this diagnosis, which would require both prominent somatic symptoms causing distress or dysfunction, as well as positive psychological criteria (behavior, cognition, perception).

A draft description of these and other disorders will be published on the APA’s DSM V website in January, 2010.*

In addition, a paper describing the thinking of the workgroup and providing a slightly earlier version of the diagnostic guidelines may be found at:

Dimsdale J , Creed F, and on behalf of the DSM-V Workgroup on Somatic Symptom Disorders. The proposed diagnosis of somatic symptom disorders in DSM-V to replace somatoform disorders in DSM-IV—a preliminary report, J Psychosom Res, 66 (2009) 473–476

[Ed: Free full text here: http://www.jpsychores.com/article/S0022-3999(09)00088-9/fulltext ]

The workgroup welcomes comments from colleagues about the proposed changes. Are the proposed changes on the right track? Does this proposal represent, all in all, a step forward? Are there major adverse unintended consequences? Workgroup members include: Arthur Barsky, Francis Creed, Javier Escobar, Nancy Frasure-Smith, Michael Irwin, Frank Keefe, Sing Lee, James Levenson, Michael Sharpe, Lawson Wulsin, Joel Dimsdale (chair).

Please send comments to Joel Dimsdale via email jdimsdale@ucsd.edu .

[Ends]

*Ed: Since rescheduled for 10 February 2010

Further references:

Journal of Psychosomatic Research, Volume 68, Issue 1, Pages 1-104 (January 2010)

Letters to the editor [subscription required]

The proposed diagnosis of somatic symptom disorders in DSM-V: Two steps forward and one step backward?
Andreas Schröder, Per Fink, pages 95–96

The concept of comorbidity in somatoform disorder—a DSM-V alternative for the DSM-IV classification of Somatoform disorder, Christina M. van der Feltz-Cornelis, Anton J.L.M. van Balkom, pages 97–99

The proposed diagnosis of somatic symptom disorders in DSM-V to replace somatoform disorders in DSM-IV—A preliminary report, 04 November 2009, Joel E. Dimsdale, Francis H. Creed, pages 99–100

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