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Anxiety Disorder, Generalized

Differential Diagnoses

Adjustment disorder
Adjustment disorder with anxious features
Adult respiratory distress syndrome
AIDS
Anxiety disorder due to a general medical condition
Cardiac conditions
Cognitive impairment disorders
Hypochondriasis
Major depression
Nonpathological anxiety
Obsessive-compulsive disorder
Panic disorder
Phobia
Post-traumatic stress disorder
Social phobia
Somatization disorder
Substance-induced anxiety disorder
Thyrotoxicosis

Specialists

Clinical Psychologist
Internal Medicine Physician
Psychiatrist

Comorbid Conditions

Alcohol/substance abuse
Cardiovascular conditions
Irritable bowel syndrome
Major depressive disorder
Psychiatric illnesses
Sleep disorders

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The severity of the symptoms, response to treatment, coexistence of substance abuse (especially alcohol dependence), other psychological disorders, underlying medical condition(s), ego strength of the individual, and the individual's social support system can affect the length of disability.

Duration Trends from Reference Data

DURATION TRENDS

ICD-9-CM: 300.02

Cases	Mean	Min	Max	No Lost Time	Over 6 Months
2786	50	0	216	1.5%	1.3%

Percentile:	5^th	25^th	Median	75^th	95^th
Days:	6	18	36	69	147

Differences may exist between the duration tables and the reference graphs. Duration tables provide expected recovery periods based on the type of work performed by the individual. The reference graphs reflect the actual experience of many individuals across the spectrum of physical conditions, in a variety of industries, and with varying levels of case management. Selected graphs combine multiple codes based on similar means and medians.

Medical Codes

	ICD-9-CM:
	300.00 -	Anxiety State, Unspecified; Neurosis, Reaction, State (Neurotic), Atypical Anxiety Disorder
	300.02 -	Generalized Anxiety Disorder

Treatment

Once the diagnosis of GAD has been made, treatment may include psychotherapy, relaxation training, biofeedback, and pharmacotherapy. Cognitive behavioral therapy, a type of psychotherapy often practiced in a group format, has developed the strongest empirical base. Antidepressant medications such as selective serotonin reuptake inhibitors (SSRIs) are the drugs of choice in treatment of GAD. Benzodiazepines are useful for acute situations or where the duration of therapy is expected to be less than 6 weeks. Chronic benzodiazepine use may lead to tolerance, dependency, and withdrawal symptoms.

Source: Medical Disability Advisor

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