Introduction Of ICD-10 Research Articles

235 Assessing coding of diagnosis for atypical parkinsonian syndromes

BackgroundAtypical Parkinsonian syndromes, including Progressive Supranuclear Palsy (PSP), Multiple System Atrophy (MSA) and Corticobasal Syndrome (CBS), are rare neurodegenerative diseases. Reports showed that the use of the health services for patients with these diseases is underestimated. The NHS uses International Classification of Disease revision 10 (ICD-10) to code health use which has led to error in patient data for these diseases, as they are relatively new entries to this system and there were changes in coding practice in 2016.AimsTo retrospectively investigate the scale of miscoding of PSP, MSA and CBS in England since the introduction of ICD-10.MethodsFreedom of information requests were issued to 150 NHS trusts in England to investigate their method of coding and determine the coding error rate.ResultsThe coding error rates prior to, and after 2016 respectively were: 29.5%, 0% (PSP); 3.8%, 2.3% (MSA); 24.2%, 24.2% (CBS). The indexing for CBS is difficult as no specific coding exists for CBS in ICD-10.ConclusionThe high error rate for PSP is contributed by miscoding of PSP (G23.1) as MND (G12.2), due to the coding techniques employed. These errors have largely been rectified in later versions of ICD-10 with the exception of CBS.ggz1g17@soton.ac.uk

Psychopathological Aspects of Somatization in the Works of the Department of Psychiatry of Irkutsk State Medical Institute in the First Half of the 20th Century – from the Origins of the Psychosomatic Medicine to the Present

The article discusses modern problems of dimensional diagnosis of somatoform disorders including the vagueness of the criteria and the lack of reliance on pathogenetic differences in the selection of separate classification categories. An ongoing discussion on the necessity of revision of the boundaries and of “redistribution” of some somatoform disorders into different categories in accordance with their psychopathological relationship is associated with these problems. As a promising change in the diagnostic criteria of the DSM-V classification, the emphasis is shifted to psychological and behavioral characteristics, which is assessed as an actualization of the classical descriptive diagnostics methodology. As a confirmation of the significance of this, an analysis of the psychopathological study of Irkutsk psychiatrists of the first half of the 20th century, devoted to the delusion of obsession, is given. In 1935, the head of the Department of Psychiatry at the Irkutsk Medical Institute V.S. Deryabin and his student I.S. Sumbaev published a scientific work “Delirium of obsession and somatic sensations”. The authors substantiate the intimate relationship of traditionally understood sensual hysterical and ideatorial hypochondriacal mechanisms in the formation of an integral clinical picture of somatoform disorders. The use of descriptive diagnostics many decades before the introduction of ICD-10 proves the pathogenetic unity of hysterical (sensory) and hypochondriacal (ideatorial) formations within the psychosomatic register of disorders and the legitimacy of combining phenomenologically different states into a circle of somatoform disorders.

ABOUT THERAPEUTIC RELATIVISM IN ADDICTOLOGY

The problem of off-label therapy of addictive disorders is analyzed in the article. It has been noted that such a practice became widespread due to the position of narcologists called "therapeutic relativism" according to which establishing a "nosological" diagnosis on ISD or DSM was not basic and significant for making a therapeutic decision. Significant is a determination of a psychopathologic syndrome / phenomenon level and existence of the patient's subjective inquiry. It is estimated that the doctor has the right to prescribe a therapy depending on "inquiry" of the person seeking for a medical attention not only in case of disorders detection, but also in cases of the preclinical states. The discussion history on the limits of addictive norm and pathology has counted more than thirty years when there was an opinion that addictive disorders represented the continuum built as disorders increase and excluded existence of differential criteria between the norm and pathology. The problem of diagnostics and therapy intensified with the introduction of ICD-10 which besides the dependence contained nosologically undetermined heading "harmful (with harmful consequences) use of surfactant" (F1x.1). The article makes a conclusion that off-label therapy in a modern addictology can be considered as justified, but only concerning drugs with the proved safe action profile and in case of unfailing adherence to the informed consent principle.

EPA-0698 – ADHD in adults: a nationwide study from 1995–2012

Introduction The incidence of different psychiatric diagnoses in Danish Psychiatric Hospitals are characterized by fluctuations. This phonemena could be due to changes in true incidence, changes in the entry into the health care system, changes in the diagnostic practices and the possibilities of treatment for a given disease, or due to changes in the attention towards the disease within the population, the profesionals or the medias. Nowadays there is a notable increase of the number of new ADHD diagnoses among children and adults. Objectives There is a need for epidemiological measures in ADHD in The Danish Psychiatric Health Care System. Aims To investige treated incidence in ADHD in adults in Denmark through the period of 1995–2012, and to investigate psychiatric comorbidity, latency from the first contact to the ADHD diagnosis and mortality. Methods From The Danish Psychiatric Central Research Register all patients with following diagnoses given for the first time ever after their 18th birthday were identified: ICD-10: F.90.0, F90.1, F90.8, F90.9, F98.8. These data are used to make an age standardized incidence rate throughout the period differentiated with gender and possible existence of previous childhood psychiatric diagnosis. We will also analyze for psychiatric comorbidity after their primary ADHD diagnosis. Results The statistical analysis are still in progress. Conclusions There is a marked increase in treated incidence in adult ADHD from the introduction of ICD-10 to 2012. Further results about psychiatric comorbidity and mortality will be presented.

S39-02 - Mortality in serious mental illness

IntroductionThere is evidence that patients with bipolar disorder have an increased mortality from somatic causes of death, including coronary heart disease and myocardial infarction. However, present mortality ratios and mortality trends over time are not known.AimTo analyze relative mortality and mortality trends for patients with bipolar disorder in relation to the population for cerebrovascular disease, coronary heart disease and myocardial infarction.MethodsAll patients in Sweden with a clinical diagnosis of bipolar disorder from the introduction of ICD-10 (1987–2006) found in the National Swedish Patient Register were followed-up in the Cause of death register. Mortality rate ratios (MRR) for different cardiovascular diseases and different age groups were calculated, as well as numbers of excess deaths, relative to the population. Also, admission rate ratios (ARR) and yearly mortality rates for bipolar patients versus the population were calculated for the same time period.ResultsFrom all causes of death, there were 5,471 deaths for bipolar patients. MRR was 2.58 (95% CI: 2.51–2.65). For cerebrovascular disease MRR was 2.19 (95% CI: 2.01–2.40), and for coronary heart disease MRR was 2.10 (95% CI: 1.98–2.2.24). In the subgroup of acute myocardial infarction MRR was 1.97 (95% CI: 1.81–2.14). In cerebrovascular disease, ARR was increased to 1.47 (95% CI: 1.35–1.59), while in coronary heart disease ARR was 1.06 (95% CI: 0.98–2.24), and in acute myocardial infarction 1.09 (95% CI: 0.0.98–1.22). Yearly mortality rates for these causes of death decreased both among patients and the population, without indication of a decreasing gap.ConclusionsIn patients with bipolar disorder, mortality from cerebrovascular disease and coronary heart disease with its subgroup acute myocardial infarction was doubled during 1987–2006. In contrast, admission rates for coronary heart disease and acute myocardial infarction were not increased. Yearly mortality rates decreased both for the patients and the population, but there were no indications of a decreasing gap.KeywordsBipolar disorder; Register study; Cerebrovascular disease; Coronary heart disease; Acute myocardial infarction; Mortality rate ratios; Admission rate ratios.

Hospitalisation of and mortality from bleeding peptic ulcer in Sweden: a nationwide time‐trend analysis

Time-trend analyses of incidence and mortality in bleeding peptic ulcer show divergent results. To conduct a detailed national analysis of hospitalisation of and mortality from bleeding peptic ulcer in Sweden. Data from all hospitalisations at departments with primary responsibility for patients with bleeding ulcer in Sweden, with main diagnosis or co-diagnosis of bleeding ulcer from 1987 to 2005 were retrieved from the Hospital Discharge Register. A validation study was performed due to an uncertainty in diagnostic setting after the introduction of ICD-10 in 1997. Annual hospitalisation rates per 100 000 inhabitants in relation to gender, age and ulcer location were calculated as well as age-standardised 30-day mortality rates. Hospitalisations for bleeding ulcer decreased from 63.9 to 35.3 per 100 000 inhabitants per year during the study period. The decrease was greater among men (men: from 80.4 to 40.9; women: from 47.7 to 29.7) and in younger age groups. Bleeding gastric ulcer decreased in both genders, and bleeding duodenal ulcer decreased most among men, but was stable in a subgroup of elderly women. Median age increased from 70 to 76 years. Standardised 30-day mortality increased from 5.3% to 6.2%. The increased mortality was found in those aged more than 65 years and with duodenal ulcer disease, whereas mortality remained unchanged in those with bleeding gastric ulcer. Hospitalisation rates for bleeding peptic ulcer have markedly decreased in Sweden in all age groups. The 30-day mortality is low compared with other nationwide studies in the western world, but has increased among patients with duodenal ulcer disease.

ICD-10 classification in Danish child and adolescent psychiatry – Have diagnoses changed after the introduction of ICD-10?

The aim was to test this in a nationwide register study of diagnoses used in child and adolescents psychiatry in Denmark. A larger number of different diagnoses were expected to be applied after the introduction of the 10th version of the International Classification of Diseases (ICD-10). Reflecting the time trend, we particularly expected an increase in the number of neuropsychiatric diagnoses. From the Danish Psychiatric Central Register data were drawn on clinical discharge diagnoses. All patients aged 0–15 years examined at psychiatric hospitals from 1995–2002 were included; 22,469 children and adolescents with a first contact were registered. The most frequent discharge diagnoses were pervasive development disorders (PDD; 11.9%), adjustment disorders (10.6%), conduct disorder (9.5%), emotional and anxiety disorders (7.6%), hyperkinetic disorders (7.3%), and specific developmental disorders (7.3%). We found a significant increase in the number of neuropsychiatric and affective diagnoses and a significant decrease in the number of adjustment, conduct and anxiety diagnoses during the study period. Of the 22,469 diagnoses, 45% were only partly specified according to ICD-10. Thirty-four per cent had diagnoses unspecified on the four-character level (Fxx.9) and 11% had Z-diagnoses. A larger number of different diagnoses and an increase in the use of neuropsychiatric diagnoses were seen after the introduction of ICD-10. Many diagnoses were only partly specified; consequently, a more detailed specification of the ICD-10 is still required.

Transparent ICD and DRG coding using information technology: linking and associating information sources with the extensible markup language

With the introduction of ICD-10 as the standard for diagnostics, it becomes necessary to develop an electronic representation of its complete content, inherent semantics, and coding rules. The authors' design relates to the current efforts by the CEN/TC 251 to establish a European standard for hierarchical classification systems in health care. The authors have developed an electronic representation of ICD-10 with the eXtensible Markup Language (XML) that facilitates integration into current information systems and coding software, taking different languages and versions into account. In this context, XML provides a complete processing framework of related technologies and standard tools that helps develop interoperable applications. XML provides semantic markup. It allows domain-specific definition of tags and hierarchical document structure. The idea of linking and thus combining information from different sources is a valuable feature of XML. In addition, XML topic maps are used to describe relationships between different sources, or “semantically associated” parts of these sources. The issue of achieving a standardized medical vocabulary becomes more and more important with the stepwise implementation of diagnostically related groups, for example. The aim of the authors' work is to provide a transparent and open infrastructure that can be used to support clinical coding and to develop further software applications. The authors are assuming that a comprehensive representation of the content, structure, inherent semantics, and layout of medical classification systems can be achieved through a document-oriented approach.

A comparison of ICD-8 and ICD-10 diagnoses of affective disorder —a case register study from Denmark

The introduction of ICD-10 has changed the diagnostic borders of affective disorders in clinical psychiatry. The current study presents the diagnostic concordance between ICD-8 diagnoses given in 1993 and ICD-10 diagnoses given in 1994 to the same patients admitted in both years, according to the Danish register of psychiatric admissions. In total, 1,487 patients received an ICD-8 diagnosis of manic-depressive psychoses in 1993 and were re-admitted in 1994. The majority of patients (84.0%) with a manic-depressive diagnosis according to ICD-8 received a diagnosis of affective disorder according to ICD-10. Patients with a diagnosis of affective disorder according to ICD-10 had previously been diagnosed as manic-depressive (69.6%), psychogenic psychoses (8.7%), personality disorders (5.5%) or neurosis (3.2%) according to ICD-8. The ICD-10 concept of affective disorder thus appeared broader and more comprehensive compared with ICD-8.

The diagnostic stability of ICD-10 psychiatric diagnoses in clinical practice

This study examines the stability of ICD-10 diagnoses of patients admitted to Al Ain (United Arab Emirates) inpatients psychiatric unit during the period from November 1993 to August 1995. Diagnostic stability is a measure of the degree to which diagnoses remained unchanged at a later hospital admission. One hundred and seven patients were admitted more than once during this period, accounting for 168 readmissions. High levels of diagnostic stability were found for ICD-10 Fl-psychiatric disorders (100%), F2-schizophrenia (87%), F3-bipolar disorders (87%) and F3-depressive disorders (73%). A poor level of stability was found for patients with neurotic, stress related and adjustment disorders (F4), ranging from zero for somatoform disorders to 50% for generalized anxiety and panic disorders. Poor levels of stability were also found for other psychoses (excluding schizophrenia and affective psychoses) and personality disorders. We conclude that the introduction of ICD-10 as a formal diagnostic system has greatly improved the temporal stability of the most commonly encountered psychiatric disorders (ICD-10 Fl to F3 disorders), confirming the construct validity of those psychiatric disorders. Further investigations are required to evaluate the diagnostic stability of neurotic and other psychotic disorders.

Feasibility, Suitability, and Interrater Reliability of ICD-10 During Different Stages of the ICD-10 Field Trial

A total of 134 clinicians in 10 centres participated in the WHO-initiated field trial in German-speaking countries prior to the introduction of ICD-10 (chapter V; categories F00-F99. Mental, Behavioural, and Developmental Disorders), and provided 1,778 diagnostic assessments of 90 cases. Since these assessments were made in different phases of the field trial, the present study investigated how the "feasibility" and "suitability" of the so-called "Clinical Descriptions and Diagnostic Guidelines" was assessed within the individual phases. In addition, the interrater reliability of diagnostic assessments for the respective phases was investigated. The results show that ICD-10 was accepted both at the beginning of the study, and after several months of use. With respect to interrater reliability, improvements in some of the categories are necessary.