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307 Special symptoms or syndromes, not elsewhere classified

          Conditions in which an outstanding symptom or group of symptoms is not
          manifestly part of a more fundamental classifiable condition.
          Excludes: when due to mental disorders classified elsewhere
           when of organic origin

307.0 Stammering and stuttering

          Disorders in the rhythm of speech, in which the individual knows precisely
          what he wishes to say, but at the time is unable to say it because of an
          involuntary, repetitive prolongation or cessation of a sound.
          Excludes: dysphasia (784.5)
           lisping or lalling (307.9)
           retarded development of speech (315.3)

307.1 Anorexia nervosa

          A disorder in which the main features are persistent active refusal to eat and
          marked loss of weight. The level of activity and alertness is
          characteristically high in relation to the degree of emaciation. Typically
          the disorder begins in teenage girls but it may sometimes begin before puberty
          and rarely it occurs in males. Amenorrhoea is usual and there may be a variety
          of other physiological changes including slow pulse and respiration, low body
          temperature and dependent oedema. Unusual eating habits and attitudes toward
          food are typical and sometimes starvation follows or alternates with periods
          of overeating. The accompanying psychiatric symptoms are diverse.
          Excludes: eating disturbance NOS (307.5)
           loss of appetite (783.0)
           of nonorganic origin (307.5)

307.2 Tics

          Disorders of no known organic origin in which the outstanding feature consists
          of quick, involuntary, apparently purposeless, and frequently repeated
          movements which are not due to any neurological condition. Any part of the
          body may be involved but the face is most frequently affected. Only one form
          of tic may be present, or there may be a combination of tics which are carried
          out simultaneously, alternatively or consecutively. Gilles de la Tourette's
          syndrome refers to a rare disorder occurring in individuals of any level of
          intelligence in which facial tics and tic-like throat noises become more
          marked and more generalized and in which later, whole words or short sentences
          [often with an obscene content] are ejaculated spasmodically and
          involuntarily. There is some overlap with other varieties of tic.
          Excludes: nail-biting or thumb-sucking (307.9)
           stereotypies occurring in isolation (307.3)
           tics of organic origin (333.3)

307.3 Stereotyped repetitive movements

          Disorders in which voluntary repetitive stereotyped movements, which are not
          due to any psychiatric or neurological condition, constitute the main feature.
          Includes head-banging, spasmus nutans, rocking, twirling, finger-flicking
          mannerisms and eye poking. Such movements are particularly common in cases of
          mental retardation with sensory impairment or with environmental monotony.
          Stereotypies NOS
          Excludes: tics:
           NOS (307.2)
           of organic origin (333.3)

307.4 Specific disorders of sleep

          This category should only be used when a more precise medical or psychiatric
          diagnosis cannot be made.
          Of nonorganic origin: Of nonorganic origin:
           Hypersomnia Nightmares
           Insomnia Night terrors
           Inversion of sleep rhythm Sleepwalking
          Excludes: narcolepsy (347)
           when of unspecified cause (780.5)

307.5 Other and unspecified disorders of eating

          This category should only be used when a more precise medical or psychiatric
          diagnosis cannot be made.
          Of nonorganic origin: Of nonorganic origin:
           Infantile feeding Overeating
           disturbances Pica
           Loss of appetite Psychogenic vomiting
          Excludes: anorexia:
           nervosa (307.1)
           of unspecified cause (783.0)
           overeating of unspecified cause (783.6)
           NOS (787.0)
           cyclical (536.2)
           psychogenic (306.4)

307.6 Enuresis

          A disorder in which the main manifestation is a persistent involuntary voiding
          of urine by day or night which is considered abnormal for the age of the
          individual. Sometimes the child will have failed to gain bladder control and
          in other cases he will have gained control and then lost it. Episodic or
          fluctuating enuresis should be included. The disorder would not usually be
          diagnosed under the age of four years.
          Enuresis (primary) (secondary) of nonorganic origin
          Excludes: enuresis of unspecified cause (788.3)

307.7 Encopresis

          A disorder in which the main manifestation is the persistent voluntary or
          involuntary passage of formed motions of normal or near-normal consistency
          into places not intended for that purpose in the individual's own
          sociocultural setting. Sometimes the child has failed to gain bowel control,
          and sometimes he has gained control but then later again became encopretic.
          There may be a variety of associated psychiatric symptoms and there may be
          smearing of faeces. The condition would not usually be diagnosed under the
          age of four years.
          Encopresis (continuous) (discontinuous) of nonorganic origin
          Excludes: encopresis of unspecified cause (787.6)

307.8 Psychalgia

          Cases in which there are pains of mental origin, e.g., headache or backache,
          when a more precise medical or psychiatric diagnosis cannot be made.
          Psychogenic backache Tension headache
          Excludes: migraine (346.-)
           pains not specifically attributable to a psychological cause
           back (784.5)
           headache (784.0)
           joint (719.4)
           limb (729.5)
           lumbago (724.2)
           rheumatic (729.0)

307.9 Other and unspecified

          The use of this category should be discouraged. Most of the items listed in
          the inclusion terms are not indicative of psychiatric disorder and are
          included only because such terms may sometimes still appear as diagnoses.
          Hair plucking Masturbation
          Lalling Nail-biting
          Lisping Thumb-sucking
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