
Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
List of medical symptoms
Introduction
Where available, ICD-10 codes are listed. When codes are available both as a sign/symptom (R code) and as an underlying condition, the code for the sign is used.
- General
- cachexia (R64)
- loss of appetite (R63.0)
- weight loss (R63.4)
- weight gain (R63.5)
- dry mouth (R68.2)
- fatigue (R53)
- muscle weakness (M62.8)
- pyrexia (R50)
- jaundice (P58, P59, R17)
- pain
- abdominal pain (R10)
- chest pain (R07)
- dyspareunia (N94.1)
- vaginismus (N94.2)
- bruising (Sx0 (x=0 through 9))
- epistaxis (R04.0)
- tremor (R25.1)
- convulsions (R56)
- muscle cramps (R25.2)
- paralysis
- tinnitus (H93.1)
- dizziness / vertigo (R42)
- syncope (R55)
- fecal incontinence
- cataplexy (G47.4)
- hypothermia (T68)
- hyperthermia (T670)
- cachexia (R64)
- Neurological/Psychological
- anxiety
- ataxia
- catatonia (F20.2)
- dysarthria
- somnolence (R40.0)
- insomnia (F51.0, G47.0)
- Ocular
- amaurosis fugax (G45.3) and amaurosis
- blurred vision
- double vision (H53.2)
- mydriasis/miosis (H570)
- nystagmus
- Gastrointestinal
- anorexia (R63.0)
- bloating (R14)
- belching (R14)
- blood in stool: melena (K92.1), hematochezia
- constipation (K59.0)
- diarrhea (A09, K58, K59.1)
- dysphagia (R13)
- dyspepsia (K30)
- flatulence (R14)
- nausea (R11)
- pyrosis (R12)
- vomiting (R11)
- Cardiovascular
- chest pain (R07)
- claudication
- palpitation (R00.2)
- tachycardia (R00.0)
- bradycardia (R00.1)
- arrhythmia
- reticulocytosis
- macrocytosis (D75.8)
- Urologic
- dysuria (R30.0)
- polyuria (R35)
- hematuria (R31)
- urinary frequency (R35)
- urinary incontinence (R32)
- impotence (N48.4)
- Pulmonary
- hypoventilation
- hyperventilation
- bradypnea (R06.0)
- apnea
- cough (R05)
- dyspnea (R06.0)
- hemoptysis (R04.2)
- pleuritic chest pain
- sputum production (R09.3)
- tachypnea (R06.0)
- Integumentary
