NCIt Code NCIt PT Subset PT Subset SY NCIt Definition Subset Definition NCIt Code of First Parent First Parent NCIt Code of Second Parent Second Parent NCIt Code of Subset PT of NICHD Subset Subset Antiquated PT Subset Antiquated SY C92621 Acute Stress Disorder Acute Stress Disorder An anxiety disorder precipitated by an experience of intense fear or horror while exposed to a traumatic (especially life-threatening) event. The disorder is characterized by dissociative symptoms; vivid recollections of the traumatic event; avoidance of stimuli associated with the traumatic event; and a constant state of hyperarousal for no more than one month. C2878 Anxiety Disorder C97150 Neurological Development Terminology C34362 Agoraphobia Agoraphobia An anxiety disorder characterized by an intense, irrational fear of venturing out into open places or situations in which help (or escape) might not be available should excessive anxiety or panic symptoms develop. C2878 Anxiety Disorder C97150 Neurological Development Terminology C34387 Anorexia Nervosa Anorexia Nervosa A disorder most often seen in adolescent females characterized by a refusal to maintain a minimally normal body weight, an intense fear of gaining weight, a disturbance in body image, and, in postmenarcheal females, the development of amenorrhea. C89332 Eating Disorder C97150 Neurological Development Terminology C2878 Anxiety Disorder Anxiety Disorder A category of psychiatric disorders which are characterized by anxious feelings or fear often accompanied by physical symptoms associated with anxiety. C2893 Psychiatric Disorder C97150 Neurological Development Terminology C97159 Asperger Syndrome Asperger Syndrome A disorder most often diagnosed in the pediatric years in which the individual displays marked impairment in social interaction and a repetitive, stereotyped pattern of behavior. The individual, however, displays no delay in language or cognitive development, which differentiates Asperger Syndrome from autism. C88412 Autism Spectrum Disorder C97150 Neurological Development Terminology C97168 Ataxic Cerebral Palsy Ataxic Cerebral Palsy The least common subtype of cerebral palsy, in which the individual displays hypotonia, a loss of motor coordination, and an intention tremor. Individuals with ataxic cerebral palsy walk very unsteadily, with a wide-based gait. A type of cerebral palsy characterized by decreased muscle tone, a loss of motor coordination and an intention tremor. C34460 Cerebral Palsy C97150 Neurological Development Terminology C97169 Athetoid Cerebral Palsy Athetoid Cerebral Palsy A subtype of cerebral palsy characterized by involuntary, purposeless writhing movements which affect the hands, feet, arms, and legs; the face and tongue may be affected as well, leading to involuntary grimacing, drooling, dysarthria and difficulty eating. A type of cerebral palsy characterized by involuntary, purposeless writhing movements that affect the hands, feet, arms, and legs; the face and tongue may be affected as well, leading to involuntary grimacing, drooling, dysarthria and difficulty eating. C34460 Cerebral Palsy C97150 Neurological Development Terminology C97160 Attention Deficit Hyperactivity Disorder Attention Deficit/Hyperactivity Disorder Attention Deficit Hyperactivity Disorder A disorder characterized by a marked pattern of inattention and/or hyperactivity-impulsivity that is inconsistent with developmental level and clearly interferes with functioning in at least two settings (e.g. at home and at school). At least some of the symptoms must be present before the age of 7 years. A neurodevelopmental disorder presenting in early childhood that is characterized by chronic and excessive inattention, overactivity, and/or impulsivity. C35470 Behavioral Disorder C97150 Neurological Development Terminology C97161 Autism Autism Autistic Disorder A disorder characterized by marked impairments in social interaction and communication accompanied by a pattern of repetitive, stereotyped behaviors and activities. Developmental delays in social interaction and language surface prior to age 3 years. A neurodevelopmental disorder presenting in early childhood that is characterized by impaired communication, difficulty in social interactions, stereotypic behaviors, and a limited range of interests and activities. C88412 Autism Spectrum Disorder C97150 Neurological Development Terminology C88412 Autism Spectrum Disorder Autism Spectrum Disorder Pervasive Developmental Disorders A spectrum of developmental disorders that includes autism, Asperger syndrome, and Rett syndrome. Signs and symptoms include poor communication skills, defective social interactions, and repetitive behaviors. Neurodevelopmental disorders presenting in childhood with classic symptoms of impairment in verbal and nonverbal communication, social interactions, and/or imaginative play. C97179 Pervasive Developmental Disorder C97150 Neurological Development Terminology C35470 Behavioral Disorder Behavioral Disorder A specific behavioral problem that occurs in persistent patterns and characteristic clusters and that causes clinically significant impairment. C2991 Disease or Disorder C97150 Neurological Development Terminology C97162 Binge Eating Binge Eating Recurrent episodes of over-eating. Binge eating with or without purging. C89332 Eating Disorder C97150 Neurological Development Terminology C34423 Bipolar Disorder Bipolar Disorder A disorder of the brain that causes unusual shifts in mood, energy, activity levels and the ability to carry out day-to-day tasks. Often these moods range and shift from periods of elation and energized behavior to those of hopelessness and depression. C2893 Psychiatric Disorder C97150 Neurological Development Terminology C97109 Blindness Blindness The lack of vision. It is caused by neurological or physiological factors. Profound visual impairment despite optimal refractive correction. C35126 Vision Disorder C97150 Neurological Development Terminology C96412 Brain Development Abnormality Brain Development Abnormality A group of congenital or acquired disorders that affect the normal development of the brain. C89338 Neurodevelopmental Disorder C97150 Neurological Development Terminology C96413 Brain Disorder Brain Disorder A non-neoplastic or neoplastic disorder that affects the brain. C2934 Central Nervous System Disorder C97150 Neurological Development Terminology C34440 Bulimia Nervosa Bulimia Nervosa Bulimia A disorder characterized by recurrent episodes of binge-eating over which the individual feels a lack of control; these episodes of binge-eating are followed by recurrent compensatory behavior to prevent weight gain, usually self-induced vomiting. In addition, self-evaluation is unduly influenced by body image. Recurrent episodes of over-eating. C89332 Eating Disorder C97150 Neurological Development Terminology C97170 Central Auditory Processing Disorder Central Auditory Processing Disorder A disorder characterized by impairment of the auditory processing, resulting in deficiencies in the recognition and interpretation of sounds by the brain. Causes include brain maturation delays and brain traumas or tumors. C97155 Language Disorder C97150 Neurological Development Terminology C34662 Central Hearing Loss Central Hearing Loss Hearing loss resulting from disorders of the central nervous system auditory pathways. Hearing loss resulting from disorders of the central nervous system auditory pathways. C35731 Hearing Loss C97150 Neurological Development Terminology C2934 Central Nervous System Disorder Central Nervous System Disorder Disorder of Central Nervous System A non-neoplastic or neoplastic disorder which affects the brain and/or spinal cord. C26835 Nervous System Disorder C97150 Neurological Development Terminology C34460 Cerebral Palsy Cerebral Palsy A group of disorders affecting the development of movement and posture, often accompanied by disturbances of sensation, perception, cognition, and behavior. It results from damage to the fetal or infant brain. A non-progressive, neurological syndrome presenting in infancy or early childhood that is caused by brain injury or malformation and is characterized by permanent impairment of muscle coordination and various movement disorders. C26835 Nervous System Disorder C89328 Pediatric Disorder C97150 Neurological Development Terminology C97163 Childhood Depression Childhood Depression Similar to depression in adults, childhood depression is characterized by a prolonged depressed or irritable mood accompanied by a significant loss of interest in activities, changes in appetite or sleep, decreased energy, feelings of worthlessness, and/or recurrent thoughts of death or suicide. C92190 Pediatric Psychiatric Disorder C97150 Neurological Development Terminology C97164 Childhood Disintegrative Disorder Childhood Disintegrative Disorder A pediatric disorder characterized by normal development for at least the first two years of life followed by a severe regression in language, social interaction, bowel or bladder control, and/or motor skills. The affected individual may also exhibit repetitive and stereotyped patterns of behavior similar to autism. A neurodevelopmental disorder that presents between the ages of two and ten, and is characterized by severe regression of communication, social interactions, bowel or bladder control, and/or motor skills that has previously developed normally. C97179 Pervasive Developmental Disorder C92190 Pediatric Psychiatric Disorder C97150 Neurological Development Terminology C35004 Childhood Schizophrenia Childhood Schizophrenia Schizophrenia occurring in childhood. C92190 Pediatric Psychiatric Disorder C97150 Neurological Development Terminology C27645 Conductive Hearing Loss Conductive Hearing Loss Hearing loss caused by impaired transmission of signals from the external auditory canal or middle ear to the cochlea. Hearing loss caused by impaired transmission of signals from the external auditory canal or middle ear to the cochlea. C35731 Hearing Loss C97150 Neurological Development Terminology C35107 Congenital Genitourinary Abnormality Congenital Genitourinary Abnormality Congenital Abnormality of the Genitourinary System An abnormality of the genitourinary system that is present at birth or detected in the neonatal period. C2849 Congenital Malformation C97150 Neurological Development Terminology C97172 Congenital Nervous System Disorder Congenital Nervous System Disorder Congenital Abnormality of the Nervous System An abnormality of the nervous system that is present at birth or detected in the neonatal period. C2849 Congenital Malformation C26835 Nervous System Disorder C97150 Neurological Development Terminology C34527 Demyelinating Disorder Demyelinating Disorder A broad group of disorders that affect the myelin sheaths that cover the neurons. Myelin sheathes cover neuronal axons in the central and peripheral nervous system and function to increase travelling impulse speeds. Disruption of this sheath impairs neuronal transmission and can result in disorders such as multiple sclerosis and Guillain-Barre syndrome, among others. C26835 Nervous System Disorder C97150 Neurological Development Terminology C92561 Developmental Coordination Disorder Developmental Dyspraxia Development Coordination Disorder|Developmental Coordination Disorder A disorder characterized by an impairment in the development of an individual's motor coordination skills; this impairment in motor development is not due to a medical condition. A developmental disorder characterized by voluntary motor skill impairment. C89338 Neurodevelopmental Disorder C97150 Neurological Development Terminology Clumsy Child Syndrome C97165 Dyscalculia Dyscalculia A wide group of related learning disorders characterized by difficulties with mathematics and manipulating numbers; the difficulty with math may be caused or exacerbated by visuo-spatial or language processing difficulties. C89334 Learning Disorder C97150 Neurological Development Terminology C96410 Dyslexia Dyslexia A learning disorder characterized by an impairment in processing written words. Reading difficulties can include distortions, omissions or substitutions of characters. Oral and silent reading difficulties can include faulty and slow comprehension. C89334 Learning Disorder C97150 Neurological Development Terminology C89332 Eating Disorder Eating Disorder A broad group of psychological disorders with abnormal eating behaviors leading to physiological effects from overeating or insufficient food intake. C2893 Psychiatric Disorder C97150 Neurological Development Terminology C97166 Echolalia Echolalia A symptom of neurologic or psychiatric dysfunction in which the individual involuntarily and meaninglessly repeats a recently heard word, series of words, or a song. Involuntarily repeating of other peoples words. C97170 Central Auditory Processing Disorder C97150 Neurological Development Terminology C26920 Encephalopathy Encephalopathy A functional and/or structural disorder of the brain caused by diseases (e.g. liver disease, kidney disease), medications, chemicals, and injuries. Diffuse disease of the brain that alters function and/or structure of the brain and is characterized by an altered mental state. C96413 Brain Disorder C97150 Neurological Development Terminology C3020 Seizure Disorder Epilepsy Seizure Disorder A brain disorder characterized by episodes of abnormally increased neuronal discharge resulting in transient episodes of sensory or motor neurological dysfunction, or psychic dysfunction. These episodes may or may not be associated with loss of consciousness or convulsions. A neurological disorder characterized by recurring seizures. C96413 Brain Disorder C97150 Neurological Development Terminology C92622 Generalized Anxiety Disorder Generalized Anxiety Disorder An anxiety disorder characterized by excessive and difficult-to-control worry about a number of life situations. The worry is accompanied by restlessness, fatigue, inability to concentrate, irritability, muscle tension, and/or sleep disturbance and lasts for at least 6 months. C2878 Anxiety Disorder C97150 Neurological Development Terminology C35731 Hearing Loss Hearing Loss A partial or complete loss of hearing in one or both ears. It is classified as conductive, sensory, or central. Impaired ability to hear. C63711 Sensory Disorder C97150 Neurological Development Terminology C97250 Intellectual Disability Intellectual Disability Intellectual Disabilities A broad category of disorders characterized by an impairment to the intelligence an individual possesses. These impairments can result from trauma, birth, or disease and are not restricted to any particular age group. C96413 Brain Disorder C97150 Neurological Development Terminology C50896 Intraventricular Brain Hemorrhage Intraventricular Hemorrhage Bleeding into the brain's ventricles. C50438 Intracranial Hemorrhage C97150 Neurological Development Terminology C97155 Language Disorder Language Disorder A category of disorders characterized by an impairment in the development of an individual's language capabilities, which is in contrast to his/her non-verbal intellect. C92190 Pediatric Psychiatric Disorder C97150 Neurological Development Terminology C97175 Low Vision Low Vision Reduced ability to perceive visual stimuli. C35126 Vision Disorder C97150 Neurological Development Terminology C84392 Mental Retardation Mental Retardation A developmental disorder characterized by less than average intelligence and significant limitations in adaptive behavior with onset before the age of 18. A condition of arrested or incomplete development of the mind, which is especially characterized by impairment of skills manifested during the developmental period, which contribute to the overall level of intelligence, i.e. cognitive, language, motor, and social abilities. C92190 Pediatric Psychiatric Disorder C97150 Neurological Development Terminology C97177 Mixed Cerebral Palsy Mixed Cerebral Palsy A subtype of cerebral palsy characterized by both the tight muscle tone of spastic cerebral palsy and the writhing, involuntary muscle movements of athetoid cerebral palsy. A type of cerebral palsy characterized by both increased muscle tone and involuntary, purposeless writhing movements that affect the hands, feet, arms, and legs. C34460 Cerebral Palsy C97150 Neurological Development Terminology C26974 Mixed Hearing Loss Mixed Hearing Loss Hearing loss characterized by a combination of conductive and sensorineural hearing loss. It is caused by problems in both the inner ear and middle or outer ear. A combination of conductive and sensorineural hearing loss. C35731 Hearing Loss C97150 Neurological Development Terminology C26835 Nervous System Disorder Nervous System Disorder Disorder of Nervous System|Neurologic Disorder A non-neoplastic or neoplastic disorder that affects the brain, spinal cord, or peripheral nerves. C2991 Disease or Disorder C97150 Neurological Development Terminology C88411 Obsessive Compulsive Disorder Obsessive Compulsive Disorder Obsessive-Compulsive Disorder A disorder characterized by the presence of persistent and recurrent irrational thoughts (obsessions), resulting in marked anxiety and repetitive excessive behaviors (compulsions) as a way to try to decrease that anxiety. C2878 Anxiety Disorder C97150 Neurological Development Terminology C97194 Panic Disorder with Agoraphobia Panic Disorder with Agoraphobia A disorder in which an individual experiences recurrent, unexpected panic attacks and persistent concern about having additional panic attacks. Agoraphobia is a component of this disorder. C2878 Anxiety Disorder C97150 Neurological Development Terminology C97193 Panic Disorder without Agoraphobia Panic Disorder without Agoraphobia A disorder in which an individual experiences recurrent, unexpected panic attacks and persistent concern about having additional panic attacks. Agoraphobia is not a component of this disorder. C2878 Anxiety Disorder C97150 Neurological Development Terminology C92190 Pediatric Psychiatric Disorder Pediatric Psychiatric Disorder Childhood Mental Disorder A category of psychiatric disorders which includes disorders most commonly identified in infancy, childhood, or adolescence. C89328 Pediatric Disorder C97150 Neurological Development Terminology C97179 Pervasive Developmental Disorder Pervasive Developmental Disorder A category of developmental disorders characterized by impaired communication and socialization skills. The impairments are incongruent with the individual's developmental level or mental age. These disorders can be associated with general medical or genetic conditions. C96412 Brain Development Abnormality C97150 Neurological Development Terminology C3389 Post-Traumatic Stress Disorder Post-Traumatic Stress Disorder An anxiety disorder precipitated by an experience of intense fear or horror while exposed to a traumatic (especially life-threatening) event. The disorder is characterized by intrusive recurring thoughts or images of the traumatic event; avoidance of anything associated with the event; a state of hyperarousal and diminished emotional responsiveness. These symptoms are present for at least one month and the disorder is usually long-term. C2878 Anxiety Disorder C97150 Neurological Development Terminology C75488 Rett Syndrome Rett Syndrome A progressive neurologic disorder caused by mutations in the MECP2 gene on chromosome X. It almost exclusively affects girls. It is characterized by language and learning difficulties, poor communication skills, and repetitive hand motions. Other signs and symptoms include microcephaly, scoliosis, breathing abnormalities, and sleep disturbances. C97179 Pervasive Developmental Disorder C97150 Neurological Development Terminology C2962 Seizure Seizure Convulsion Sudden, involuntary skeletal muscular contractions of cerebral or brain stem origin. A paroxysmal surge of electrical activity in the brain that may result in physical or behavioral changes. C87124 Central Nervous System Signs and Symptoms C97150 Neurological Development Terminology C92569 Selective Mutism Selective Mutism A persistent failure to speak in certain social situations (i.e., school) where speaking is expected, despite speaking in other situations. C2878 Anxiety Disorder C97150 Neurological Development Terminology C26739 Sensorineural Hearing Loss Sensorineural Hearing Loss SNHL Hearing loss resulting from damage to the cochlea, auditory nerve and/or brainstem. Hearing loss resulting from damage to the cochlea, auditory nerve and/or brainstem. C35731 Hearing Loss C97150 Neurological Development Terminology C63711 Sensory Disorder Sensory Disorder An interruption or alteration in the sensory activity or functions of the nervous system. C2991 Disease or Disorder C97150 Neurological Development Terminology C35014 Separation Anxiety Disorder Separation Anxiety Disorder An anxiety disorder characterized by recurrent excessive distress due to fear of separation from the home or from major attachment figures; the distress is developmentally inappropriate and causes impairment in social, academic, or other areas of functioning. C2878 Anxiety Disorder C92190 Pediatric Psychiatric Disorder C97150 Neurological Development Terminology C34927 Social Anxiety Disorder Social Anxiety Disorder An anxiety disorder characterized by an intense, irrational fear of one or more social or performance situations in which the individual believes that he or she will be scrutinized by others. Exposure to social situations immediately provokes an anxiety response. In adults, the social phobia is recognized as excessive or unreasonable. C2878 Anxiety Disorder C97150 Neurological Development Terminology C35284 Specific Phobia Specific Phobia An anxiety disorder characterized by an intense, irrational fear cued by the presence or anticipation of a specific object or situation. Exposure to the phobic stimulus immediately provokes an anxiety response. In adults, the specific phobia is recognized as excessive or unreasonable. C2878 Anxiety Disorder C97150 Neurological Development Terminology C5041 Speech Disorder Speech Disorder A term referring to disorders characterized by the disruption of normal speech. It includes stuttering, lisps, dysarthria and voice disorders. C26835 Nervous System Disorder C97150 Neurological Development Terminology C35078 Tourette Syndrome Tourette Syndrome Tourette's Syndrome|Gilles de la Tourette syndrome A neurologic disorder caused by defective metabolism of the neurotransmitters in the brain. It is characterized by repeated involuntary movements (motor tics) and uncontrollable vocal sounds (vocal tics). The symptoms are usually manifested before the age of eighteen. A neurological disorder presenting in childhood that is characterized by both motor and phonic tics that occur daily or nearly daily for at least a year and are not attributed to an identifiable cause. C116757 Movement Disorders C96412 Brain Development Abnormality C97150 Neurological Development Terminology C35126 Vision Disorder Vision Disorder Disorder of Visual System|Visual System Disorder Any impairment to the vision. C63711 Sensory Disorder C97150 Neurological Development Terminology C35275 Visual Cortex Disorder Visual Cortex Disorder Cortical Visual Impairment A vision disorder that results from damage of the part of the cerebral cortex that is involved in the processing of visual information. C35126 Vision Disorder C97150 Neurological Development Terminology