PubMed · 2324298
ICD-9-CM classification coding in psychiatry.
Abstract
The question was addressed how well mental health professionals were able to translate diagnostic formulations into ICD-9-CM codes. This was done with three coder groups and under two conditions. It was found that there was insufficient interrater agreement on the ICD-codes in all groups and conditions. This finding then was related to the inadequacies of the ICD-system itself. It was concluded that current mental health statistics that are based on the ICD-9-CM coding system are without scientific value.
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P M Dingemans. 1990. ICD-9-CM classification coding in psychiatry.. https://doi.org/10.1002/1097-4679(199003)46%3A2%3C161%3A%3Aaid-jclp2270460206%3E3.0.co%3B2-8
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