Symptoms and signs concerning food and fluid intake (R63)

Browse all the diagnosis codes used for symptoms and signs concerning food and fluid intake (r63). For easy navigation, the diagnosis codes are sorted in alphabetical order and grouped by sections. Each section is clearly marked with its description, and the corresponding three-digit code range. This format makes it simple to browse diagnosis codes in this chapter or section and find what you're looking for. We've also added green checkmark icons to label billable codes, and red warning icons for non-billable ones. This makes it easy to identify which codes can be billed.

Clinical Information

Anorexia - The lack or loss of APPETITE accompanied by an aversion to food and the inability to eat. It is the defining characteristic of the disorder ANOREXIA NERVOSA.

Anorexia Nervosa - An eating disorder that is characterized by the lack or loss of APPETITE, known as ANOREXIA. Other features include excess fear of becoming OVERWEIGHT; BODY IMAGE disturbance; significant WEIGHT LOSS; refusal to maintain minimal normal weight; and AMENORRHEA. This disorder occurs most frequently in adolescent females. (APA, Thesaurus of Psychological Index Terms, 1994)

Anti-Obesity Agents - Agents that increase energy expenditure and weight loss by neural and metabolic regulation.

Body Weight - The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms.

Body-Weight Trajectory - A general pattern of body weight gain or loss over many years. Weight change trajectory is influenced by several determinants in children and adults.

Diet, Reducing - A diet designed to cause an individual to lose weight.

Fasting - Abstaining from FOOD.

Food - Substances taken in by the body to provide nourishment.

Gestational Weight Gain - Increase in body weight of the mother during the course of her PREGNANCY.

Hypoglycemia - A syndrome of abnormally low BLOOD GLUCOSE level. Clinical hypoglycemia has diverse etiologies. Severe hypoglycemia eventually lead to glucose deprivation of the CENTRAL NERVOUS SYSTEM resulting in HUNGER; SWEATING; PARESTHESIA; impaired mental function; SEIZURES; COMA; and even DEATH.

Intermittent Fasting - Alternating between fasting for an extended period of time during the day and eating during a restricted time for the day.

Polydipsia - Excessive thirst manifested by excessive fluid intake. It is characteristic of many diseases such as DIABETES MELLITUS; DIABETES INSIPIDUS; and NEPHROGENIC DIABETES INSIPIDUS. The condition may be psychogenic in origin.

Polydipsia, Psychogenic - A clinical disorder characterized by excessive fluid intake (polydipsia); HYPONATREMIA; and POLYURIA in SCHIZOPHRENIA and other psychiatric disorders. Impaired water metabolism in psychogenic polydipsia can result in WATER INTOXICATION.

Pregnancy - The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.

Weight Gain - Increase in BODY WEIGHT over existing weight.

Weight Loss - Decrease in existing BODY WEIGHT.

Weight Reduction Programs - Services providing counseling and activities that help overweight individuals to attain a more healthy body weight.

Instructional Notations

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.