Automated Control of Codes Accuracy in Case-Mix Databases by Evaluating Coherence with Available Information in the Electronic Health Record

Coding accuracy in case-mix databases enables efficient funding of health facilities and accurate epidemiological statistics based on patients' stays information. We assume that the data collected in the electronic health record, especially drug prescriptions and medical reports are relevant for checking the consistency of the coding of diagnoses. We evaluated a new coding control tool, "TOLBIAC control", embedded in the Web100T coding assistant. This tool interacts with the Vidal Application Programming Interface and the electronic health record of the University Hospital of Saint-Etienne. The micro-average F-measure was 0.76 for drug prescriptions and 0.55 for free text medical reports. This initial evaluation has revealed that drug prescriptions in EHRs can successfully be used to develop an automated ICD-10 code-control tool. Nevertheless the "TOLBIAC control" tool is not yet fully effective for widespread use because of its limited performance in text analysis, a feature that is currently undergoing improvements.

How to Link SNOMED CT Procedure and WHO International Classification of Health Interventions (ICHI)

Among different used healthcare terminology resources there is a need to link them to ease their interoperability. SNOMED CT is the most detailed clinical reference terminology for procedure used in the Electronic Health Record (EHR). WHO developed since 2006 an aggregated classification named ICHI required for statistics and resource allocation. It is based on an ontology framework defined in ISO 1828 named Categorial Structure (CAST) for surgical procedures. We present ICHI coding structure, ISO 1828 CAST standard for surgical procedures and SNOMED CT procedures hierarchy concept model and their relations. We demonstrate the obstacles to align ICHI coding structure with ISO 1828 CAST which can be linked with SNOMED CT procedures hierarchy concept model. We recommend to update ICHI coding structure to decrease the gap with ISO 1828 CAST and SNOMED CT concept model for procedures hierarchy to allow users to share the different terminology resources.

[Not Available]

AIM

To evaluate the value of research in the case-mix database to identify cases of drug-related anaphylactic or anaphylactoid shock.

METHODS

Hospital stays of patients discharged from the University Hospital of Saint-Étienne between July 1st 2009 and June 30th 2012. Five codes from the international classification of diseases were selected: T88.6, T88.2, J39.3, T80.5 and T78.2.

RESULTS

Among 89 cases identified by the programme for medicalization of information system (programme de médicalisation des systèmes d'information, PMSI), 40 were selected (45%). Of these, 16 cases were spontaneously reported by physicians. The unspecific code "anaphylactic shock unspecified (T78.2)" was coded for 57.5% of cases.

CONCLUSION

The study confirms the interest of the PMSI as a tool for health monitoring, in addition to spontaneous reporting. Nevertheless, coding with insufficient precision about the causal role of the drug, requires a return to the medical record and so an important time consuming process.

Development of a new international classification of health interventions based on an ontology framework

: The WHO International Classification of Diseases is used in many national applications to plan, manage and fund through case mix health care systems and allows international comparisons of the performance of these systems. There is no such measuring tool for health interventions or procedures. To fulfil this requirement the WHO-FIC Network recommended in 2006 to develop an International Classification of Health Interventions (ICHI). This initiative is aimed to harmonise the existing national classifications and to provide a basic system for the countries which have not developed their own classification systems. It is based on the CEN/ISO ontology framework standard named Categorial Structure defined from a non formal bottom up ontology approach. The process of populating the framework is ongoing to start from a common model structure encompassing the ICD 9CM Volume 3 granularity.

Comparing existing national and international classification systems of surgical procedures with the CEN/ISO 1828 ontology framework standard

Among different standardization strategies for biomedical terminologies the European Standard Body CEN TC 251 followed by ISO TC 215 have stated that it was not possible to convince the different European or international member states using different national languages to agree on a reference clinical terminology or to standardize a detailed language independent biomedical ontology. Since 1990 they have developed since an approach named the Categorial Structure that standardises only the terminologies' model structure. The methodology for the Categorial Structure development and a comparison of the different existing classification systems based on this ontology framework is presented as a step towards increased interoperability between biomedical terminologies through conformity to a minimum set of ontological requirements.

The revision of the Korean classifications of health interventions based on the proposed ICHI semantic model and lessons learned

The Korean Medical Association and the Health Information Review Agency have decided to re-engineer the different Korean coding systems of health interventions based on a proposed ontology framework defined in 2010 for the prospective International Classification of Health Interventions (ICHI). The authors present the interim report of the project focused on this model: 5,338 procedures of the Korean version of ICD9-CM 5,150 procedures covered by Korean health insurance and 6,619 uncovered procedure labels were processed with the participation of 8 coders and 310 medical doctors. As of 28^th January 61.8% of data was processed. The ontology framework model itself was not enough to represent all the labels when the preliminary data from obstetrics and gynecology was explored. However, when modified with 7 notations, it was possible to assign each label of ICD 9 CM Volume 3 and 30 % to 57 % of specific Korean interventions to the semantic model.

[Refining the French system of cost assessment for oncology patients following chemotherapy]

The aim of this study was to check the clinical predictive variables of the variance of the total cost by GHM for patients undergoing chemotherapy. 10 different hospitals registered 537 hospital stays and 1,535 day care sessions. The initial disease, metastases, other pathologies, participation to randomised trial were recorded. Each day health status, pain, stage of the protocol and the drugs, use of catheter, pump or chamber implant were noted. Work was measured separately for physicians and nurses per 24 hours using a visual analogy scale. Lab tests and drugs were recorded for each patient. The cost of the drugs explain 98% of the variance of the total cost for the day care and 50% for the hospitalisations. For the latter, beside the cost of drugs, the length of stay, labor, initial disease, age, pain and associated pathology are predictive variables. According to this results, we conclude that the drugs for chemotherapy should be paid separately. No other change should be made for day care. DRG for hospitalized patients should take into account initial disease, age and pain.