ICD-9-CM code 312 (disturbance of conduct, not elsewhere classified) and 313 (disturbance of emotions specific to childhood and adolescence) OR The ICD codes used to identify behaviour disturbances, included: ICD-10 codes F80-F83 and F88-F89 (disorders of psychological development) and ICD-10 codes F70-F79 (mental retardation). ICD-9-CM code 315 (specific delays in development) and ICD-9-CM codes 317-319 (mental retardation) OR The ICD codes used to identify learning disabilities, included: This decision was based on the lack of comprehensiveness of information on other treatment types as well as the pervasiveness of psychotropic treatment for ADHD.Īdditional diagnoses were determined using the following definitions: psychiatrists and psychologists), this study only considered treatment with respect to psychostimulant use. While other forms of treatment for ADHD, such as behavior therapy, are also employed by some Manitoba health practitioners (e.g. The ICD codes used to identify sleep disorders included: Two or more prescriptions for a psychostimulant (including Ritalin, Dopram, Vivarin, or Dexedrine) and no diagnosis for conduct disorder, narcolepsy or cataplexy. One or more physician visits with a diagnosis of hyperkinetic syndrome of childhood (ICD-9-CM code 314) OR One or more hospitalizations with a diagnosis of hyperkinetic syndrome of childhood (ICD-9-CM code 314) or hyperkinetic disorders (ICD-10 code F90) OR Rates of diagnosis and treatment of Attention-Deficit/Hyperactive Disorder in Manitoba children: Considering the socioeconomic gradient,ĭefined ADHD using the following conditions: Only individuals aged 4-18 years at the end of 2001/02 were included and ADD/ADHD was measured as a percent of the population for individuals 4-18 years of age. Those individuals with an ICD-9-CM diagnosis code of 347 (catalepsy and narcolepsy) with a prescription for a psychostimulant, but no 314 diagnosis, were removed. Those individuals that had an ICD-9-CM diagnosis of 312 (conduct disorder) with a prescription for a psychostimulant were considered ADHD with a comorbid condition. The presence of ICD-9-CM code 314 (hyperkinetic syndrome) in the Medical Services/Physician Claims data, the Hospital Discharge Abstracts data, or in the Mental Health Management Information System (MHMIS) data, ORĪ prescription for a psychostimulant (Cylert, Desoxyn, Dexedrine, Dopram, Ritalin, PMS-Methylphenidate, Vivarin) over the last year of the study.Īdditional conditions that were considered included: Patterns of Regional Mental Illness Disorder Diagnoses and Service Use in Manitoba: A Population-Based Study Over time, different definitions and algorithms have been used, as described in the following sections. Medical Services (Physician Claims) data ĭrug Program Information Network (DPIN) data.Īt MCHP, the following research projects have investigated ADHD. In the following algorithms, the following data sources are used to define ADHD: (American Psychiatric Association, 2000). ADHD occurs twice as commonly in boys as in girls The disorder is often identified during school ages and symptoms may continue into adulthood. Findings from MCHP research are listed and described, and links to specific report information are provided.Īttention-Deficit Hyperactivity Disorder (ADHD) can generally be described as a neurobehavioral developmental disorder that is characterized by inattention, hyperactivity, and impulsivity. This concept describes the research methods used at the Manitoba Centre for Health Policy (MCHP) over time to define Attention-Deficit Hyperactivity Disorder (ADHD), including the specific ICD codes, prescription drugs and additional conditions that are involved.
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