2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Mental Disorders 290-319 > Neurotic Disorders, Personality Disorders, And Other Nonpsychotic Mental Disorders 300-316 > Neurotic Disorders 300.* > 2006 ICD-9-CM Diagnosis 300.00 Anxiety state unspecified View the most recent version of ICD-9-CM 300.00 Feeling of distress or apprehension whose source is unknown. Apprehension of danger and dread accompanied by restlessness, tension, tachycardia, and dyspnea unattached to a clearly identifiable stimulus. Persistent feeling of dread, apprehension, and impending disaster. 300.00 is a specific code that can be used to specify a diagnosis 300.00 contains 13 index entries View the ICD-9-CM Volume 1 300.* hierarchy Alternate Terminology Anxiety: neurosis reaction state (neurotic) Atypical anxiety disorder  Index entries containing 300.00: Anxiety (neurosis) (reaction) (state) 300.00 alcohol-induced 291.89 depression 300.4 drug-induced 292.89 due to or associated with physical condition 293.84 generalized 300.02 hysteria 300.20 in acute stress reaction 308.0 transient adjustment reaction 309.24 panic type 300.01 separation, abnormal 309.21 syndrome (organic) (transient) 293.84 Apprehension, apprehensiveness (abnormal) (state) 300.00 specified type NEC 300.09 Disorder - see also Disease anxiety (see also Anxiety) 300.00 due to or associated with physical condition 293.84 psychogenic NEC (see also condition) 300.9 anxiety 300.00 atypical 300.00 generalized 300.02 Neurosis, neurotic 300.9 anxiety (state) 300.00 generalized 300.02 Psychoneurosis, psychoneurotic (see also Neurosis) 300.9 anxiety (state) 300.00 Reaction anxiety 300.00 psychoneurotic (see also Neurosis) 300.9 anxiety 300.00 State anxiety (neurotic) (see also Anxiety) 300.00 specified type NEC 300.09 apprehension (see also Anxiety) 300.00 specified type NEC 300.09 Syndrome - see also Disease anxiety (see also Anxiety) 300.00 organic 293.84 asphyctic (see also Anxiety) 300.00