Here is the grouped list of common conditions seen in Australian general practice, appended with their incidence or prevalence. Common conditions are commonly examined so…
1. Cardiovascular System
- Hypertension (High Blood Pressure): ~30% of adults
 - Lipid Disorders (e.g., High Cholesterol): ~35% of adults
 - Ischaemic Heart Disease (e.g., Angina): 4.6% of adults
 - Atrial Fibrillation: 2-3% of adults
 - Heart Failure: 1-2% of the population
 - Peripheral Vascular Disease: 5-10% of adults over 55
 - Myocardial Infarction (Heart Attack): 2% of adults
 - Congestive Heart Failure: 1.5% of adults
 - Deep Vein Thrombosis (DVT): 1-2 per 1,000 adults per year
 - Pulmonary Embolism: 1-2 per 1,000 adults per year
 - Varicose Veins: 25-30% of adults
 - Temporal Arteritis: 0.1% of adults over 50
 - Kawasaki Disease: 15-20 per 100,000 children under 5
 - Long QT Syndrome: 1 in 2,000-3,000 people
 - Brugada Syndrome: 1 in 5,000-10,000 people
 - Wolff-Parkinson-White Syndrome: 0.1-0.3% of the general population
 - Marfan Syndrome: 1 in 5,000 people
 - Takayasu’s Arteritis: Rare, <1 per million annually
 - Carotid Artery Stenosis: 0.5-1% of adults over 65
 - Cardiomyopathy: 1 in 500 people
 - Raynaud’s Phenomenon: 3-5% of adults
 - Vasculitis: Rare, varies by type
 - Arteriovenous Malformation (AVM): 1 in 100,000 people annually
 
2. Respiratory System
- Upper Respiratory Tract Infections (e.g., Common Cold): Most people 2-4 times/year
 - Acute Bronchitis: 5% of adults annually
 - Asthma: 11% of the population
 - Chronic Obstructive Pulmonary Disease (COPD): 2-4% of adults
 - Pneumonia: 1-2% of adults annually
 - Sleep Apnea: 5-10% of adults
 - Sinusitis: 10-15% of adults annually
 - Chronic Sinusitis: 2-4% of adults
 - Laryngitis: 3-5% of adults annually
 - Tonsillitis: 10% of children annually
 - Pulmonary Embolism: 1-2 per 1,000 adults annually
 - Tuberculosis: 5-6 per 100,000 people annually
 - Cystic Fibrosis: 1 in 2,500-3,000 newborns
 - Bronchiectasis: 2% of adults over 70
 - Interstitial Lung Disease: 0.05% of the population
 - Emphysema: 1-2% of adults
 
3. Endocrine System
- Diabetes Mellitus: 5-6% of adults
 - Thyroid Disorders (e.g., Hypothyroidism, Hyperthyroidism): 5% of adults
 - Hyperparathyroidism: 0.1% of adults
 - Cushing’s Syndrome: Very rare, ~0.1% of the population
 - Addison’s Disease: 1 in 10,000 people
 - Polycystic Ovary Syndrome (PCOS): 8-13% of women
 - Acromegaly: 1 in 100,000 people
 - Hypopituitarism: 1 in 10,000 people
 - Pheochromocytoma: 2-8 per million annually
 - Hypercalcemia: 1 in 1,000 people
 - Hypogonadism (Male and Female): ~2% of the population
 - Hyperprolactinemia: 0.4% of adults
 - Graves’ Disease: 1-2% of the population
 - Addisonian Crisis: Very rare, related to Addison’s Disease prevalence
 
4. Gastrointestinal System
- Gastroesophageal Reflux Disease (GERD): 10-20% of adults
 - Constipation: 15-20% of adults
 - Irritable Bowel Syndrome (IBS): 10-15% of the population
 - Peptic Ulcer Disease: 1-2% of adults
 - Inflammatory Bowel Disease (Crohn’s Disease, Ulcerative Colitis): 0.1-0.2% of the population
 - Liver Disease (e.g., Hepatitis): 1-2% of the population
 - Non-Alcoholic Fatty Liver Disease (NAFLD): 15-20% of the population
 - Alcoholic Liver Disease: 2-3% of the population
 - Cholelithiasis (Gallstones): 10-15% of adults
 - Pancreatitis (Acute and Chronic): 0.05% of adults annually
 - Celiac Disease: 1-2% of the population
 - Diverticular Disease: 5-10% of adults over 50
 - Hernias (e.g., Inguinal, Hiatal): 1-3% of adults
 - Hepatocellular Carcinoma: 10 per 100,000 adults annually
 - Cholangiocarcinoma: 1-2 per 100,000 adults annually
 - Barrett’s Esophagus: 1-2% of adults
 - Achalasia: 1 in 100,000 people annually
 - Esophageal Cancer: 5 per 100,000 adults annually
 - Colorectal Cancer: 1.2% of adults
 - Anal Cancer: <1% of adults
 - Hemorrhoids: 10-20% of adults
 
5. Musculoskeletal System
- Osteoarthritis: 10-15% of adults
 - Rheumatoid Arthritis: 1-2% of adults
 - Gout: 1-4% of adults
 - Back Problems: 20-25% of adults
 - Fractures: Common in elderly; 10-15% of adults over 65
 - Bursitis/Tendonitis: 3-5% of adults
 - Osteoporosis: 5-10% of adults over 50
 - Fibromyalgia: 2-4% of adults
 - Polymyalgia Rheumatica: 1 in 1,000 adults over 50
 - Scleroderma: 1 in 10,000 people
 - Ehlers-Danlos Syndrome: 1 in 5,000 people
 - Paget’s Disease of Bone: 1-2% of adults over 55
 - Dermatomyositis: 1 in 100,000 people
 - Polymyositis: 1 in 100,000 people
 - Marfan Syndrome: 1 in 5,000 people
 - Ankylosing Spondylitis: 1 in 200 adults
 
6. Neurological System
- Migraine/Chronic Headache: 10-15% of adults
 - Epilepsy: 1% of the population
 - Stroke: 1.7% of adults
 - Parkinson’s Disease: 0.1-0.2% of adults
 - Multiple Sclerosis: 0.1% of the population
 - Dementia (e.g., Alzheimer’s Disease): 8% of adults over 65
 - Neuropathies (e.g., Carpal Tunnel Syndrome): 2-3% of adults
 - Myasthenia Gravis: 1 in 5,000 people
 - Guillain-Barre Syndrome: 1-2 per 100,000 annually
 - Trigeminal Neuralgia: 0.1% of adults
 - Cluster Headaches: 0.1% of adults
 - Huntington’s Disease: 1 in 10,000 people
 - Amyotrophic Lateral Sclerosis (ALS): 1-2 per 100,000 annually
 - Bell’s Palsy: 1 in 5,000 people annually
 - Neurofibromatosis: 1 in 3,000 people
 - Essential Tremor: 4-5% of adults over 65
 - Cerebral Palsy: 2-3 per 1,000 live births
 - Tuberous Sclerosis: 1 in 6,000 people
 - Retinitis Pigmentosa: 1 in 4,000 people
 - Creutzfeldt-Jakob Disease: 1 in 1 million people
 - Progressive Supranuclear Palsy: 1 in 100,000 people
 
7. Psychiatric and Behavioral Disorders
- Depression: 10-15% of adults
 - Anxiety: 15-20% of adults
 - Bipolar Disorder: 1-2% of adults
 - Attention-Deficit/Hyperactivity Disorder (ADHD): 5-7% of children
 - Obsessive-Compulsive Disorder (OCD): 1-2% of adults
 - Schizophrenia: 0.5-1% of adults
 - Post-Traumatic Stress Disorder (PTSD): 4-6% of adults
 - Eating Disorders (e.g., Anorexia, Bulimia): 1-2% of young adults
 - Panic Disorder: 2-3% of adults
 - Social Anxiety Disorder: 3-5% of adults
 - Sleep Disorders (e.g., Insomnia): 10-20% of adults
 - Conversion Disorder: Very rare, <0.1% of adults
 - Somatization Disorder: Rare, <0.1% of adults
 - Factitious Disorder: Rare, <0.1% of adults
 - Munchausen Syndrome: Very rare, <0.1% of adults
 - Body Dysmorphic Disorder: 1-2% of adults
 
8. Dermatological System
- Dermatitis/Eczema: 10-15% of children, 3-5% of adults
 - Psoriasis: 2-4% of adults
 - Acne Vulgaris: 85% of teenagers, 10% of adults
 - Rosacea: 1-2% of adults
 - Scabies: Common in outbreaks, ~5% of the population in affected areas
 - Alopecia (Hair Loss): 1-2% of adults
 - Skin Cancer (e.g., Melanoma, Basal Cell Carcinoma): 2-3% of adults
 - Vitiligo: 0.5-1% of the population
 - Seborrheic Dermatitis: 3-5% of adults
 - Urticaria (Hives): 20% of people at some point
 - Impetigo: 1-2% of children annually
 - Cellulitis: 2-4% of adults annually
 - Herpes Zoster (Shingles): 1 in 3 people in their lifetime
 - Fungal Infections (e.g., Tinea, Ringworm): 10-15% of adults annually
 - Warts: 5-10% of children, 1-2% of adults
 
9. Genitourinary System
- Urinary Tract Infections (UTIs): 10% of women annually
 - Benign Prostatic Hyperplasia (BPH): 30-40% of men over 60
 - Erectile Dysfunction: 30-40% of men over 40
 - Prostatitis: 5-10% of men at some point
 - Incontinence (Urinary and Fecal): 10-20% of adults
 - Kidney Stones: 5-10% of adults
 - Chronic Kidney Disease: 2-3% of adults
 - Interstitial Cystitis: 0.1-0.2% of adults
 - Polycystic Kidney Disease: 1 in 1,000 people
 - Bladder Cancer: 10 per 100,000 people annually
 - Pyelonephritis: 1-2% of adults annually
 - Glomerulonephritis: 1 in 100,000 people annually
 
10. Reproductive System (Male and Female)
- Menstrual Problems (e.g., Dysmenorrhea, Menorrhagia): 20-30% of women
 - Endometriosis: 10% of women
 - Uterine Fibroids: 20-30% of women
 - Cervical Cancer: 7 per 100,000 women annually
 - Ovarian Cancer: 10 per 100,000 women annually
 - Testicular Cancer: 6 per 100,000 men annually
 - Infertility: 15% of couples
 - Pregnancy-Related Conditions (e.g., Hyperemesis Gravidarum, Gestational Diabetes): 2-3% of pregnancies
 - Ectopic Pregnancy: 1-2% of pregnancies
 - Pelvic Inflammatory Disease: 1% of women annually
 - Vulvodynia: 8-10% of women
 - Uterine Prolapse: 10-15% of women over 50
 - Erectile Dysfunction: 30-40% of men over 40
 
11. Hematological System
- Iron Deficiency Anemia: 5-10% of adults
 - Pernicious Anemia: 0.1-0.2% of adults
 - Thalassemia: 1 in 100 people (carriers)
 - Sickle Cell Disease: Rare, mostly in certain ethnic groups
 - Hemophilia: 1 in 10,000 people
 - Von Willebrand Disease: 1 in 100 people
 - Chronic Lymphocytic Leukemia: 4 per 100,000 people annually
 - Multiple Myeloma: 5 per 100,000 people annually
 - Non-Hodgkin’s Lymphoma: 15 per 100,000 people annually
 - Hodgkin’s Disease: 3 per 100,000 people annually
 - Polycythemia Vera: 1-2 per 100,000 people annually
 
12. Immune System
- Allergic Rhinitis (Hay Fever): 15-20% of the population
 - Anaphylaxis: 2-5% of the population
 - Lupus (Systemic Lupus Erythematosus): 1 in 2,000 people
 - Sjogren’s Syndrome: 1 in 1,000 people
 - Behcet’s Disease: Very rare, <1 in 100,000 people
 - Systemic Sclerosis: 1 in 10,000 people
 - Immunodeficiency Disorders (e.g., HIV/AIDS): 0.1% of the population
 - IgA Nephropathy: 1 in 100,000 people
 
13. Infectious Diseases
- Upper Respiratory Infections (URIs): Most people 2-4 times/year
 - Influenza: 5-10% of the population annually
 - Tuberculosis: 5-6 per 100,000 people annually
 - Hepatitis (A, B, C): 1-2% of the population
 - Sexually Transmitted Infections (e.g., Chlamydia, Gonorrhea, Syphilis, HIV): 1-2% of the population
 - Q Fever: 2-5 per 100,000 people annually
 - Lyme Disease: Rare, <1 in 100,000 people (imported cases)
 - Malaria (in returning travelers): Rare, 100-300 cases annually
 - Parasitic Infections (e.g., Giardia): 1-2% of the population
 - Infective Endocarditis: 3-7 per 100,000 people annually
 - Measles, Mumps, Rubella: <1 per 100,000 people annually
 - Chickenpox (Varicella): 5 per 100,000 people annually
 - COVID-19: Varies depending on outbreaks and waves
 
14. Hepatobiliary System
- Hepatitis (A, B, C): 1-2% of the population
 - Non-Alcoholic Fatty Liver Disease (NAFLD): 15-20% of the population
 - Alcoholic Liver Disease: 2-3% of the population
 - Cirrhosis: 1-2% of adults
 - Gallstones (Cholelithiasis): 10-15% of adults
 - Liver Cancer (Hepatocellular Carcinoma): 10 per 100,000 adults annually
 - Primary Biliary Cholangitis: 1 in 1,000 adults
 - Primary Sclerosing Cholangitis: 1 in 10,000 people
 - Wilson’s Disease: 1 in 30,000 people
 
15. Ophthalmological System
- Cataracts: 20% of adults over 65
 - Glaucoma: 2-3% of adults over 40
 - Macular Degeneration: 10% of adults over 65
 - Conjunctivitis: 1-2% of the population annually
 - Diabetic Retinopathy: 10-15% of people with diabetes
 - Retinitis Pigmentosa: 1 in 4,000 people
 - Keratitis: Rare, <1 in 10,000 people
 - Uveitis: 1 in 1,000 people
 
16. Otolaryngological System
- Otitis Media (Middle Ear Infections): 10-15% of children annually
 - Sinusitis: 10-15% of adults annually
 - Tonsillitis: 10% of children annually
 - Laryngitis: 3-5% of adults annually
 - Meniere’s Disease: 1 in 1,000 people
 - Hearing Loss: 10-20% of adults
 - Tinnitus: 15-20% of adults
 
17. Hematological/Oncological
- Anemia (Iron Deficiency, Pernicious): 5-10% of adults
 - Leukemia (Chronic Lymphocytic, Acute Lymphoblastic): 4-5 per 100,000 people annually
 - Lymphoma (Hodgkin’s, Non-Hodgkin’s): 15-18 per 100,000 people annually
 - Multiple Myeloma: 5 per 100,000 people annually
 - Myelodysplastic Syndromes: 4-5 per 100,000 people annually
 - Polycythemia Vera: 1-2 per 100,000 people annually
 
18. Rheumatological System
- Rheumatoid Arthritis: 1-2% of adults
 - Osteoarthritis: 10-15% of adults
 - Psoriatic Arthritis: 0.5-1% of adults
 - Ankylosing Spondylitis: 1 in 200 adults
 - Gout: 1-4% of adults
 - Systemic Lupus Erythematosus (SLE): 1 in 2,000 people
 - Vasculitis (e.g., Giant Cell Arteritis): 1 in 1,000 adults over 50
 - Polymyalgia Rheumatica: 1 in 1,000 adults over 50
 - Fibromyalgia: 2-4% of adults
 
19. Pediatric Conditions
- Viral Exanthems (e.g., Chickenpox, Measles): 1-2% of children annually
 - ADHD (Attention-Deficit/Hyperactivity Disorder): 5-7% of children
 - Autism Spectrum Disorder: 1-2% of children
 - Cystic Fibrosis: 1 in 2,500-3,000 newborns
 - Pediatric Asthma: 10-12% of children
 - Juvenile Idiopathic Arthritis: 1 in 1,000 children
 - Cerebral Palsy: 2-3 per 1,000 live births
 
20. Genetic/Metabolic Disorders
- Down Syndrome: 1 in 1,100 live births
 - Turner Syndrome: 1 in 2,000 live births
 - Klinefelter Syndrome: 1 in 500-1,000 live births
 - Fragile X Syndrome: 1 in 4,000 males, 1 in 8,000 females
 - Huntington’s Disease: 1 in 10,000 people
 - Cystic Fibrosis: 1 in 2,500-3,000 newborns
 - Muscular Dystrophies (Duchenne, Becker): 1 in 3,500 males
 - Wilson’s Disease: 1 in 30,000 people
 - Hemochromatosis: 1 in 200 people
 - Phenylketonuria (PKU): 1 in 10,000 people
 - Gaucher’s Disease: 1 in 40,000 people
 - Fabry Disease: 1 in 40,000 males