| DeBakey's classification | Consists of three types: Type I extends into the transverse arch and distal aorta and type II is confined to the ascending aorta. Type III dissections begin in the descending aorta, with type IIIA extending toward the diaphragm and type IIIB extending below it. (05 Mar 2000) |
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| Denver classification | A system of nomenclature for human mitotic chromosomes, based on length and position of the centromere. Origin: Denver,, Colourado, where agreed upon (05 Mar 2000) |
| Dukes' classification | A classification of the extent of operable adenocarcinoma of the colon or rectum commonly modified as follows: A (Duke's A), confined to the mucosa; B1, into the muscularis mucosae; B2, through the muscularis mucosae; C1, limited to the bowel wall, with nodal metastases; C2, through the bowel wall, with nodal metastases. (05 Mar 2000) |
| 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) |
| 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) |