| ICHPPC | International Classification of Health Problems in Primary Care |
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| ICIDH | International Classification of Impairments Disabilities and Handicaps |
| I.C.P.C. | International Classification of Primary Care |
| ICSD | International Classification of Sleep Disorders |
| LOCS II | Lens Opacities Classification System II |
| International Classification of Disease | The classification of specific conditions and groups of conditions determined by an internationally representative expert committee that advises the World Health Organization, which publishes the complete list in a periodically revised book, the Manual of the International Statistical Classification of Diseases, Injuries and Causes of Death. The Tenth Revision (ICD) came into use in 1992; it has 20 chapters, each with a hierarchical arrangement of subdivisions (rubrics); some chapters are aetiological, more relate to body systems, some to classes of conditions, some to procedures. Acronym: ICD (05 Mar 2000) |
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| International Classification of Health Problems in Primary Care | A classification of diseases, conditions and problems arranged for use in primary care where diagnostic precision is seldom possible. (05 Mar 2000) |
| International Classification of Impairments Disabilities and Handicaps | A WHO-sponsored numerical taxonomy of the impairments, disabilities and handicaps consequent upon injury and disease. (05 Mar 2000) |
| International Labour Organization Classification | ILO 1980 International Classification of Radiographs of the Pneumoconioses; a system for qualitative and semiquantitative description of the chest radiographic findings caused by pneumoconiosis, designed for epidemiologic studies; supersedes classifications of 1950, 1958, 1968, and 1971. (05 Mar 2000) |
| Tessier classification | An anatomical classification of facial, craniofacial, and laterofacial clefts that utilises the orbit as the primary structure for reference. Fifteen locations for clefts are differentiated. (05 Mar 2000) |
| E classification | <biochemistry> Classification of enzymes based on the recommendations of the Committee on Enzyme Nomenclature of the International Union of Biochemistry. The first number indicates the broad type of enzyme (1 = oxidoreductase, 2 = transferase, 3 = hydrolase, 4 = lyase, 5 = isomerase, 6 = ligase (synthetase)). The second and third numbers indicate subsidiary groupings and the last number, which is unique, is assigned arbitrarily in numerical order by the Committee. (08 Mar 2000) |
| TNM classification | TNM classification provides a system for staging the occurrence of cancer., T refers to the primary tumour and is categorised as being 1-4 and a-d depending upon site, size and spread, N refers to the lymph nodes and they are categorised as being X,0, 1, 2, or 3 depending upon if any, some or all are involved metastasis, and M to the presence or absence of distant metasteses. Refer Staging. (16 Dec 1997) |
| Jansky's classification | The classification of human blood groups now designated O, A, B, and AB. (05 Mar 2000) |
| FAB classification | <haematology> The classification of acute myeloid leukaemia on the basis of bone marrow and peripheral blood features. M0: Acute myeloid leukaemia with minimal evidence of myeloid differentiation. M1: Acute myeloblastic leukaemia. M2: Acute myeloblastic leukaemia with differentiation. M3: Acute promyelocytic leukaemia. M4: Acute myelomonocytic leukaemia. M5: Acute monocytic leukaemia. M6: Acute erythroleukaemia. M7: Acute megakaryocytic leukaemia. Acronym: FAB (07 Apr 1998) |
| Kennedy classification | <dentistry> A listing of several forms of partially edentulous jaws in accordance with the distribution of the missing teeth. (05 Mar 2000) |
| Kiel classification | Classification of non-Hodgkin's lymphoma into low-grade malignancy (lymphocytic, lymphoplasmacytoid, centrocytic, and centroblastic-centrocytic types) and high-grade malignancy (centroblastic, lymphoblastic of Burkitt's or convoluted cell, and immunoblastic types). Synonym: Lennert classification. (05 Mar 2000) |
| Lancefield classification | A serologic classification dividing haemolytic streptococci into groups (A to O) which bear a definite relationship to their sources, based upon precipitation tests depending upon group-specific substances that are carbohydrate in nature; e.g., Group A contains strains pathogenic for man; B, strains from mastitis in cows and from normal milk, including a few strains from the human throat and vagina; C, strains from various lower animals, including a number from cattle; D, strains from cheese; E, strains from certified milk; F, strains mainly from the human throat, associated with tonsillitis; G, strains from man, a few from monkeys and dogs; and H, K, and O, nonpathogenic strains from normal human respiratory tracts. (05 Mar 2000) |
| French-American-British classification | <haematology> The classification of acute myeloid leukaemia on the basis of bone marrow and peripheral blood features. M0: Acute myeloid leukaemia with minimal evidence of myeloid differentiation. M1: Acute myeloblastic leukaemia. M2: Acute myeloblastic leukaemia with differentiation. M3: Acute promyelocytic leukaemia. M4: Acute myelomonocytic leukaemia. M5: Acute monocytic leukaemia. M6: Acute erythroleukaemia. M7: Acute megakaryocytic leukaemia. Acronym: FAB (07 Apr 1998) |
| Lennert classification | Classification of non-Hodgkin's lymphoma into low-grade malignancy (lymphocytic, lymphoplasmacytoid, centrocytic, and centroblastic-centrocytic types) and high-grade malignancy (centroblastic, lymphoblastic of Burkitt's or convoluted cell, and immunoblastic types). Synonym: Lennert classification. (05 Mar 2000) |
| Lukes-Collins classification | A classification of lymphomas according to the immunologic nature of the cell of origin, based on histologic and clinical data. (05 Mar 2000) |