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In health care, diagnosis codes are used as a tool to group and identify diseases, disorders, symptoms, poisonings, adverse effects of drugs and chemicals, injuries and other reasons for patient encounters. Diagnostic coding is the translation of written descriptions of diseases, illnesses and injuries into codes from a particular classification.
This is a shortened version of the sixteenth chapter of the ICD-9: Symptoms, Signs and Ill-defined Conditions. It covers ICD codes 780 to 799. The full chapter can be found on pages 455 to 471 of Volume 1, which contains all (sub)categories of the ICD-9. Volume 2 is an alphabetical index of Volume 1.
The ICD-9-CM is based on the ICD-9 but provides for additional morbidity detail. It was updated annually on October 1. [15] [16] It consists three volumes: Volumes 1 and 2 contain diagnosis codes. (Volume 1 is a tabular listing, and volume 2 is an index.) Extended for ICD-9-CM
294.1x Dementia due to Huntington's disease (coded 294.1 in the DSM-IV) 294.1x Dementia due to Pick's disease (coded 290.10 in the DSM-IV) 294.1x Dementia due to Creutzfeldt–Jakob disease (coded 290.10 in the DSM-IV) 294.1x Dementia due to ... [Indicate the general medical condition not listed above] (coded 294.1 in the DSM-IV) 294.8 Dementia NOS
ICD-10 is the 10th revision of the International Classification of Diseases (ICD), a medical classification list by the World Health Organization (WHO). It contains codes for diseases, signs and symptoms, abnormal findings, complaints, social circumstances, and external causes of injury or diseases. [1]
Similar to the NINCDS-ADRDA Alzheimer's Criteria are the DSM-IV-TR criteria published by the American Psychiatric Association. [3] At the same time the advances in functional neuroimaging techniques such as PET or SPECT that have already proven their utility to differentiate Alzheimer's disease from other possible causes, [4] have led to proposals of revision of the NINCDS-ADRDA criteria that ...
The term young onset dementia is becoming more widely used to avoid the potential confusion between early onset dementia and early stage dementia This term is now used as presenile dementia which is a historical term of people diagnosed with dementia from a younger age of 51 years old. This is caused by an atypical arterioclerosis of the brain.
Mild cognitive impairment (MCI) is a diagnosis that reflects an intermediate stage of cognitive impairment that is often, but not always, a transitional phase from cognitive changes in normal aging to those typically found in dementia, [1] especially dementia due to Alzheimer's disease (Alzheimer's dementia). [2]