ICD-11 code : 6B80;
Preferred Label : Anorexia Nervosa;
ICD-11 definition : Anorexia Nervosa is characterized by significantly low body weight for the individual's
height, age and developmental stage (body mass index (BMI) less than 18.5 kg/m2 in
adults and BMI-for-age under fifth percentile in children and adolescents) that is
not due to another health condition or to the unavailability of food. Low body weight
is accompanied by a persistent pattern of behaviours to prevent restoration of normal
weight, which may include behaviours aimed at reducing energy intake (restricted eating),
purging behaviours (e.g., self-induced vomiting, misuse of laxatives), and behaviours
aimed at increasing energy expenditure (e.g., excessive exercise), typically associated
with a fear of weight gain. Low body weight or shape is central to the person's self-evaluation
or is inaccurately perceived to be normal or even excessive.;
ICD-11 synonym : AN - [anorexia nervosa];
ICD-11 acronym : AN;
ICD-11 "other" category code : 6B80.Y;
ICD-11 "unspecified" category code : 6B80.Z;
Origin ID : 263852475;
UMLS CUI : C0013473;
Automatic exact mappings (from CISMeF team)
Currated CISMeF NLP mapping
ICD-10 Mapping
Semantic type(s)
UMLS correspondences (same concept)
Anorexia Nervosa is characterized by significantly low body weight for the individual's
height, age and developmental stage (body mass index (BMI) less than 18.5 kg/m2 in
adults and BMI-for-age under fifth percentile in children and adolescents) that is
not due to another health condition or to the unavailability of food. Low body weight
is accompanied by a persistent pattern of behaviours to prevent restoration of normal
weight, which may include behaviours aimed at reducing energy intake (restricted eating),
purging behaviours (e.g., self-induced vomiting, misuse of laxatives), and behaviours
aimed at increasing energy expenditure (e.g., excessive exercise), typically associated
with a fear of weight gain. Low body weight or shape is central to the person's self-evaluation
or is inaccurately perceived to be normal or even excessive.