Diseases

Calcium channel blocker toxicity

Calcium pyrophosphate deposition disease

Cancer pain

Cancer-associated cachexia

Cancer-associated fatigue

Cancer-associated thrombosis

Cancer-related anemia

Cannabis use disorder

Carbon monoxide poisoning

Cardiac amyloidosis

Cardiac arrest

Cardiogenic shock

Cardiotoxicity of cancer therapy

Carotid artery stenosis

Carpal tunnel syndrome

Cat scratch disease

Catatonia

Catheter-associated urinary tract infection

Catheter-related bloodstream infection

Catheter-related thrombosis

Caustic ingestion

Celiac artery aneurysm

Celiac disease

Cellulitis

Central airway obstruction

Central diabetes insipidus

Central disorders of hypersomnolence

Central hypothyroidism

Central sleep apnea

Cerebral edema

Cerebral venous thrombosis

Cerumen impaction

Cervical artery dissection

Cervical cancer

Cervical insufficiency

Cervical spine injury

Cesarean delivery

Chagas cardiomyopathy

Chagas disease

Chancroid

Chemotherapy- and radiotherapy-induced mucositis

Chemotherapy- and radiotherapy-induced nausea and vomiting

Chemotherapy-induced peripheral neuropathy

Chemotherapy-induced thrombocytopenia

Chest pain

Chiari malformation

Childhood obesity

Chlamydia trachomatis infection

Cholangiocarcinoma

Choledocholithiasis

Chondrosarcoma

Chordoma

Chronic arthritic pain

Chronic bacterial prostatitis

Chronic cough

Chronic diarrhea

Chronic graft-versus-host disease

Chronic hearing loss

Chronic intestinal pseudo-obstruction

Chronic kidney disease

Chronic kidney disease-mineral and bone disorder

Chronic limb-threatening ischemia

Chronic lymphocytic leukemia

Chronic mesenteric ischemia

Chronic myeloid leukemia

Chronic obstructive pulmonary disease

Chronic pancreatitis

Chronic pelvic pain in women

Chronic prostatitis/chronic pelvic pain syndrome

Chronic rhinosinusitis

Chronic thromboembolic pulmonary hypertension

Chronic urticaria

Chronic venous insufficiency

Circadian rhythm sleep disorders

Clavicle fracture

Clostridial myonecrosis

Clostridioides difficile infection

Cluster headache

Coarctation of aorta

Coccidioidomycosis

Colon cancer

Colonic ischemia

Colonic volvulus

Colonoscopy

Colorectal polyps

Colorectal surgery

Common cold

Community-acquired pneumonia

Concussion

Congenital adrenal hyperplasia

Congenital dysfibrinogenemia

Congenital hydronephrosis

Congenital hypothyroidism

Congenital muscular torticollis

Congenital nasolacrimal duct obstruction

Congenital penile curvature

Connective tissue disease-associated interstitial lung disease

Constipation

Constitutional mismatch repair deficiency syndrome

Constrictive pericarditis

Contact dermatitis

Contrast-enhanced ultrasound of the liver

Contrast-induced nephropathy

Corneal abrasion

Coronary artery disease

Corticosteroid-induced adrenal insufficiency

Corticosteroid-induced osteoporosis

COVID-19 infection

COVID-19-associated pulmonary mucormycosis

Critical illness-related corticosteroid insufficiency

Crohn's disease

Cryptococcal meningitis

Cryptorchidism

Cushing's syndrome

Cutaneous and mucocutaneous leishmaniasis

Cutaneous lupus erythematosus

Cutaneous melanoma

Cutaneous squamous cell carcinoma

Cutaneous warts

Cyclic vomiting syndrome

Cystic fibrosis

Cytomegalovirus infection