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Table of Neoplasms - This table gives the code numbers for neoplasms by anatomical site. For each site there are six possible code numbers according to whether the neoplasm in question is malignant, benign, in situ, of uncertain behavior, or of unspecified nature.The description of the neoplasm will often indicate which of the six columns is appropriate; e.g., malignant melanoma of skin, benign fibroadenoma of breast, carcinoma in situ of cervix uteri.
Where such descriptors are not present, the remainder of the Index should be consulted where guidance is given to the appropriate column for each morphological (histological) variety listed; e.g., Mesonephroma—see Neoplasm, malignant;Embryoma—see also Neoplasm, uncertain behavior; Disease, Bowen's—see Neoplasm, skin, in situ. However, the guidance in the Index can be overridden if one of the descriptors mentioned above is present; e.g., malignant adenoma of colon is coded to C18.9 and not to D12.6 as the adjective "malignant" overrides the Index entry "Adenoma—see alsoNeoplasm, benign."
External Cause of Injuries Index - An index to the external cause of injury codes found in sections S and T (codes beginning with "S" - injury or "T" - poisoning). External Cause of Injuries (and poisoning) codes are recorded to provide data for injury research and evaluation of injury prevention strategies. They capture what area of the body was injured, how the injury occurred (including activities and/or apparatus), and, in the case of poisoning, the intent (unintentional or accidental; or intentional, such as suicide or assault).
Table of Drugs and Chemicals - This table contains a classification of drugs and other chemical substances to identify poisoning states and the external causes of adverse affects. Each of the listed substances in the table is assigned a code according to the poisoning classification. These codes are used when there is a statement of poisoning, overdose, wrong substance given or taken, or intoxication.
The table also contains a listing of external causes of adverse affects. An adverse affect is a pathologic manifestation due to ingestion or exposure to drugs or other chemical substances (e.g., dermatitis, hypersensitivity reaction, aspirin gastritis).