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The Dutch Family of International Classifications: ICPC-2, ICD-10, and ICF. Dr KEES VAN BOVEN Dutch College of General Practitioners. Roles of the Dutch family members. In general practice electronic patient records diagnostic ordering principle for the GP: ICPC-2
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The Dutch Family of International Classifications: ICPC-2, ICD-10, and ICF Dr KEES VAN BOVEN Dutch College of General Practitioners
Roles of the Dutch family members In general practice electronic patient records • diagnostic ordering principle for the GP: ICPC-2 • diagnostic specificity: ICD-10 (combined in one tool: ICPC2-ICD10 thesaurus) • additional data on functioning and disability: ICF
INTERNATIONAL CLASSIFICATION OF PRIMARY CARE ICPC-1: 1987 ICPC-2:1998 ICPC-2-E: 2000
A classification is the ordering principle of a defined domain
ICPC: THE DOMAIN OF FAMILY PRACTICE… quantitatively…..
SYMPTOMS DIAGNOSES ICPC: > 1 PER 1000 PPY 200 400 600 10.000 ICD: <1 PER 1000 PY
DESCRIBES THE CONTENT OF PATIENT-FP ENCOUNTERS • localization before etiology • symptoms AND diagnoses • -28 impairment category • -27 fear of .. category • -64 category (FP’s initiative) • social problems • patient and FP oriented
What is the unit of observation in family medicine? • Patients? • Doctors? • Encounters? • Diagnoses? • Episodes: the patient with his/her problem over time
episodeof care health problem from the first encounter for it with a health care provider till the last one
EPISODE OF CARE Perceived health problem Perceived need for care RFE, demand for care Diagnosis Process RFE, demand for care Diagnosis Process RFE, demand for care Diagnosis Process
ICPC • bi-axial structure • 17 alpha-coded chapters based on body systems/problem areas • 7 identical components, with rubrics bearing a two-digit numeric code
ICPC Chapters (Systems) A General and unspecified B Blood/bloodforming organs, lymphatics (spleen, bone marrow) D Digestive F Eye (Focal) H Ear (Hearing) K Circulatory L Musculoskeletal (Locomotion) N Neurological P Psychological R Respiratory S Skin T Endocrine, metabolic and nutritional (Thyroid) U Urological W Pregnancy, child bearing, family planning (Women) X Female genital (X-chromosome) Y Male genital (Y-chromosome) Z Social problems
ICPC Components Components (standard for each chapter) CODES 1. Complaints and symptoms 1-29 2. Diagnostic and preventive 30-49 3. Treatment, procedures and medication 50-59 4. Test results 60-61 5. Administrative 62 6. Referral and other reasons for encounter 63-69 (64!!) 7. Diagnoses/diseases: 70-99 - infectious diseases - neoplasms - injuries - congenital anomalies - other
Episode of care • Core Elements • Reasons for encounter • Health problems/diagnoses = Episode Title • Process of care/interventions • (Outcomes) • Transitions • One or more encounters, including changes in their relations over time
Episodes of careReason for encounter (RFE) • The agreed statement of the reason(s) why a patient enters the health care system, the demand for care by that person. • Symptoms or complaints (headache, tiredness, feeling depressed, having fear of cancer) • Known diseases (diabetes, hay fever) • Requests: for preventive or diagnostic services (a blood pressure check or an ECG), a request for treatment (repeat prescription), getting information, or test results, or administrative procedure (a medical certificate). • It is the PATIENT’S statement, clarified by the doctor.
Episodes of careReason for encounter (RFE) • This is a true primary care concept • Primary Care is RFE driven, not diagnosis driven
Episodes of care • Health problem: the diagnosis • Certainty • Status • Clinical findings • No coding (yet) for everything in primary care
TOOLS • ICPC-2 • 1404 terms including all process codes • Acts as ordering principle • Common entities have distinct codes • Surprisingly complete given small size • Context of episode adds specificity • ICD-10 • 14,000 terms • Adds clinical specificity to ICPC
Episodes of care • Processes of care • Diagnostic/preventive procedures • Treatment, procedures and medication • Tests and results • Administrative • Referrals • Outcome • Functional status, ICF, WONCA/COOP indicators • Severity of illness, DUSOI
Episode example • 23 yr old woman typist, tennis player • RFE: pain R elbow for 10 days, and can’t use R arm at work: ICPC code? • L10 & L28 • Process: Tenderness R lat. Epicondyle: ICPC code? • L31 Partial examination • Diagnosis: Tennis elbow: ICPC code? • L93 • Process: Steroid injection: ICPC code? • L55
Health Problem fatigue RFE feeling tired RFE test result Health Problem anemia RFE test result Health Problem Ca colon Episode of care Intervention Hb 1st visit Intervention barium enema 2nd visit Intervention referral 3rd visit
Episodes of care • Transitions • An episode may occur over many encounters • Diabetes is a lifelong episode • Each encounter may have more then one episode assessed • Many to many relationship between episodes and encounters
Possibilities for data on functioning & disability Classification of Body Functions • in patients’ Reasons for Encounter, as symptoms and complaints, • in GP’s clinical observations, as extension of ICPC process mode Classification of Activities and Participation • involves clinical consequences of a specific episode of care, resulting in limitations, as extension of ICPC process mode Qualifiers for Function and Activities & Participation • might be quite useful for family practice
Health condition (disorder or disease) Body function Activities Participation and structures Environmental Personal Factors Factors
COPD (ICPC/ICD code) Breathlessness Can`t get upstairs No work Poor condition Living in a flat Smoking
Case history Mr De Vries, age 72 • Present complaints • Shortness of breath • Palpitations • Findings • Hypotension • Bradycardia • Can’t get upstairs • Walking difficulties • ICPC code • R02 • K04 • ICPC - ICF code • K43 - B4201 • K43 - B410 • K48 - D460 • K48 - D450
Activities and Participation and ICPC chapters • Learning/knowledge • General tasks • Communication • Mobility • Selfcare • Domestic life • Interpersonal interactivity • Major life areas • Community, social life • Chapters K,N,P and Z • Chapters F,K,N,P and Z • Chapters F,H,K,N and P • Chapters F,K,L and N • ? • ? • Chapters P and Z • Chapters P and Z • Chapters P and Z • ?
Future • University of Ghent: relation between ICF-functions and components 1 and 2 of ICPC • University of Amsterdam: relation between ICF-activities/participation and component 2 of ICPC • WICC: relation between ICF-external factors and chapter Z of ICPC?
Data Model Basic Unit: The episode at an encounter RFE: Sympt.Complt.Problem RFE: Inter-vention Intermediate Intervention Subsequent Inter-vention Clinical Findings ICF? Health Problem + Certainty & Status OutcomeCOOP ICF DUSOI Repeated for each episode at that encounter Repeated at each encounter for that health problem