CAD (coronary heart disease, coronary artery disease, CHD)
CDH (congenital dislocation of the hip, congenital dysplasia of the hip, congenital subluxation of the hip, developmental dysplasia of the hip, acetabular dysplasia)
CF (cystic fibrosis)
CFS (chronic fatigue syndrome, chronic fatigue and immune dysfunction syndrome, myalgic encephalomyelitis)
CHD (coronary heart disease, coronary artery disease, CAD)
CHF (congestive heart failure, heart failure, left-sided heart failure)
CHF in children (congestive heart failure in children)
CMP (chondromalacia patellae, patello-femoral pain syndrome, patello-femoral stress syndrome, anterior knee pain)
CMV (cytomegalovirus)
CO poisoning (carbon monoxide poisoning)
COPD (chronic obstructive pulmonary disease, chronic obstructive lung disease (COLD))
CP (cerebral palsy)
CPPD (pseudogout, calcium pyrophosphate deposition disease)
CRF (chronic renal failure, chronic kidney failure)
CRS (Chinese restaurant syndrome, MSG allergy, MSG symptom complex)
CSF leak (cerebrospinal fluid fistula)
CVA (stroke, brain attack, cerebrovascular accident)
Chinese restaurant syndrome (CRS, MSG allergy, MSG symptom complex)
Christmas disease (hemophilia B, factor IX deficiency)
CoA (coarctation of the aorta, aortic coarctation)
Cooley's anemia (thalassemia, thalassemia major, thalassemia minor, Mediterranean anemia)
Costen's syndrome (temporomandibular joint disorders, temporomandibular joint syndrome, TMJ)
Creutzfeldt-Jakob disease (subacute spongiform encephalopathy)
Crohn's disease (regional enteritis)
Cushing's syndrome (hypercortisolism)
caisson disease (decompression sickness, decompression illness, the bends)
calcium pyrophosphate deposition disease (pseudogout, CPPD)
cancer (carcinoma, tumor, malignancy)
cancer of the bladder (bladder cancer)
cancer of the cervix (cervical cancer, cervical tumor, cervical carcinoma)
cancer of the endometrium (cancer of the uterus, uterine cancer, endometrial cancer)
cancer of the esophagus (esophageal cancer)
cancer of the liver (hepatocellular carcinoma, hepatoma)
cancer of the pancreas (pancreatic cancer)
cancer of the throat and larynx (laryngeal cancer)
cancer of the uterus (uterine cancer, endometrial cancer, cancer of the endometrium)
cancers affecting the bone (uterine cancer, endometrial cancer, cancer of the endometrium)
canker sore (mouth ulcer, oral ulcer, denture sore, ulcerative stomatitis)
cannabis abuse (marijuana abuse)
carbon monoxide poisoning (CO poisoning)
carbuncle (skin abscess, abscess, furuncle, boil)
carcinoma (cancer, tumor, malignancy)
carcinoma in situ (cancer, tumor, malignancy)
carcinoma of the lung (primary lung cancer)
cardiac conduction defect (heart block, atrioventricular block, AV block, bundle branch block, complete heart block, first-degree heart block, second-degree heart block, third-degree heart block, infranodal block, intraatrial block, intraventricular block, sinoatrial block)
cardiac disease (heart disease)
cardiac tamponade (heart disease)
cardiogenic shock (heart disease)
carpal tunnel syndrome (median nerve compression or entrapment)
cat scratch disease (median nerve compression or entrapment)
cataract (clouding of the lens)
catheter associated UTI (clouding of the lens)
cavities (dental caries, tooth decay, dental decay)
celiac disease (celiac sprue, nontropical sprue, sprue, gluten-sensitive enteropathy, gluten intolerance)
celiac sprue (celiac disease, nontropical sprue, sprue, gluten-sensitive enteropathy, gluten intolerance)
cellulitis (celiac disease, nontropical sprue, sprue, gluten-sensitive enteropathy, gluten intolerance)
central retinal degeneration (macular degeneration)
cerebral amyloid angiopathy (senile cerebral amyloid angiopathy, congophilic cerebral angiopathy, cerebrovascular amyloidosis)
cerebral aneurysm (brain aneurysm)
cerebral palsy (CP)
cerebrospinal fluid fistula (CSF leak)
cerebrovascular accident (stroke, brain attack, CVA)
cerebrovascular amyloidosis (senile cerebral amyloid angiopathy, cerebral amyloid angiopathy, congophilic cerebral angiopathy)
cervical cancer (cancer of the cervix, cervical tumor, cervical carcinoma)
cervical carcinoma (cancer of the cervix, cervical cancer, cervical tumor)
cervical dysplasia (cervical intraepithelial neoplasia (CIN), precancerous changes of the cervix)
cervical incompetence (incompetent cervix)
cervical intraepithelial neoplasia (CIN) (cervical dysplasia, precancerous changes of the cervix)
cervical polyp (cervical dysplasia, precancerous changes of the cervix)
cervical tumor (cancer of the cervix, cervical cancer, cervical carcinoma)
chalazion (cancer of the cervix, cervical cancer, cervical carcinoma)
chancroid (cancer of the cervix, cervical cancer, cervical carcinoma)
change of life (postmenopause)
changes in vision (vision changes)
cherry angioma (vision changes)
chickenpox (varicella)
childbirth, emergency delivery (delivery, emergency, emergency delivery, birth, emergency, home delivery)
childhood depression (depression in children)
childhood disintegrative disorder (disintegrative psychosis, Heller syndrome, dementia infantilis)
chlamydia (disintegrative psychosis, Heller syndrome, dementia infantilis)
chlamydia infection in females (disintegrative psychosis, Heller syndrome, dementia infantilis)
chlamydia infection in males (disintegrative psychosis, Heller syndrome, dementia infantilis)
chlamydia psittaci (psittacosis, ornithosis, parrot fever)
chloasma (melasma, mask of pregnancy)
cholecystitis (melasma, mask of pregnancy)
cholelithiasis (gallstones)
cholera (gallstones)
cholesterol embolism (atheroembolic renal disease, atherosclerotic renal vascular disease, renal artery embolism, renal artery aneurysm)
chondromalacia patellae (patello-femoral pain syndrome, patello-femoral stress syndrome, anterior knee pain, CMP)
chondromalacia patellae (CMP) (runner's knee)
chorea minor (Sydenham's chorea, St. Vitus dance, rheumatic chorea)
choriocarcinoma (Sydenham's chorea, St. Vitus dance, rheumatic chorea)
chronic UTI (recurring urinary tract infection, chronic urinary tract infection, recurrent UTI, relapsing urinary tract infection, relapsing UTI, chronic cystitis)
chronic bacterial prostatitis (chronic prostatitis)
chronic bronchitis (chronic prostatitis)
chronic cystitis (recurring urinary tract infection, chronic urinary tract infection, recurrent UTI, chronic UTI, relapsing urinary tract infection, relapsing UTI)
chronic epididymitis (recurring urinary tract infection, chronic urinary tract infection, recurrent UTI, chronic UTI, relapsing urinary tract infection, relapsing UTI)
chronic essential vulvar pain (vulvodynia, essential vulvodynia, pudendal neuralgia)
chronic fatigue and immune dysfunction syndrome (chronic fatigue syndrome, CFS, myalgic encephalomyelitis)
chronic fatigue syndrome (CFS, chronic fatigue and immune dysfunction syndrome, myalgic encephalomyelitis)
chronic frontal sinusitis (chronic sinusitis, chronic rhinosinusitis)
chronic kidney failure (chronic renal failure, CRF)
chronic lymphocytic leukemia (chronic renal failure, CRF)
chronic lymphocytic thyroiditis (Hashimoto's thyroiditis)
chronic myelogenous leukemia (Hashimoto's thyroiditis)
chronic obstructive lung disease (COLD) (chronic obstructive pulmonary disease, COPD)
chronic obstructive pulmonary disease (COPD, chronic obstructive lung disease (COLD))
chronic otitis externa (chronic outer ear inflammation)
chronic otitis media (persistent otitis media, recurrent otitis media, glue ear)
chronic outer ear inflammation (chronic otitis externa)
chronic peripheral arterial occlusive disease (peripheral arterial disease, peripheral atherosclerosis, peripheral vascular disease)
chronic prostatitis (chronic bacterial prostatitis)
chronic renal failure (CRF, chronic kidney failure)
chronic rhinosinusitis (chronic sinusitis, chronic frontal sinusitis)
chronic sinusitis (chronic rhinosinusitis, chronic frontal sinusitis)
chronic subdural hematoma (chronic rhinosinusitis, chronic frontal sinusitis)
chronic tonsillitis (tonsillitis, acute tonsillitis, subacute tonsillitis)
chronic urinary tract infection (recurring urinary tract infection, recurrent UTI, chronic UTI, relapsing urinary tract infection, relapsing UTI, chronic cystitis)
chronic worry (generalized anxiety disorder, GAD)
cirrhosis (generalized anxiety disorder, GAD)
classic migraine (migraine with aura, classical migraine)
classical migraine (migraine with aura, classic migraine)
clavicle fracture (collarbone fracture, broken collarbone)
claw toe (hammertoe, mallet toe)
cleft lip (cleft lip and palate, cleft palate, oral cleft)
cleft lip and palate (cleft lip, cleft palate, oral cleft)
cleft palate (cleft lip and palate, cleft lip, oral cleft)
climacteric (menopause, change of life)
clotting disorders (bleeding disorders)
clouding of the lens (cataract)
cluster headaches (cataract)
coarctation of the aorta (aortic coarctation, CoA)
cocaine abuse (cocaine addiction)
cocaine addiction (cocaine abuse)
coccidioidomycosis (valley fever, San Joaquin Valley Fever)
codependency (valley fever, San Joaquin Valley Fever)
cognitive disability (cognitive impairment, cognitive disorder)
cognitive disorder (cognitive impairment, cognitive disability)
cognitive impairment (cognitive disorder, cognitive disability)
cold exposure (hypothermia, low body temperature)
cold sore (herpes simplex infections, fever blister)
colds (upper respiratory infection, URI, common cold, viral pharyngitis, viral URI)
colic in infants (upper respiratory infection, URI, common cold, viral pharyngitis, viral URI)
colitis (inflammation of the colon)
collarbone fracture (clavicle fracture, broken collarbone)
colon polyps (colorectal polyps, rectal polyps)
color blindness (dyschromatopsia, achromatopsia, color vision deficiency)
color vision deficiency (color blindness, dyschromatopsia, achromatopsia)
colorectal cancer ()
colorectal polyps (colon polyps, rectal polyps)
coma (colon polyps, rectal polyps)
common cold (colds, upper respiratory infection, URI, viral pharyngitis, viral URI)
communication disorders in children (language disorders in children)
compartment syndrome (Volkmann's ischemic contracture)
complete abortion (miscarriage, spontaneous abortion)
complete androgen insensitivity syndrome (testicular feminization, male pseudohermaphroditism)
complete heart block (heart block, atrioventricular block, AV block, bundle branch block, first-degree heart block, second-degree heart block, third-degree heart block, cardiac conduction defect, infranodal block, intraatrial block, intraventricular block, sinoatrial block)
complex partial seizure (temporal lobe epilepsy, temporal lobe seizures, psychomotor epilepsy)
compression fractures of the back (vertebral compression fracture)
compulsive gambling disorder (pathological gambling)
conduct disorder in children (pathological gambling)
congenital aganglionic megacolon (Hirschsprung disease)
congenital dislocation of the hip (CDH, congenital dysplasia of the hip, congenital subluxation of the hip, developmental dysplasia of the hip, acetabular dysplasia)
congenital dysplasia of the hip (congenital dislocation of the hip, CDH, congenital subluxation of the hip, developmental dysplasia of the hip, acetabular dysplasia)
congenital factor VIII deficiency (hemophilia A)
congenital heart defects (congenital heart disease)
congenital heart disease (congenital heart defects)
congenital hypertrophic pyloric stenosis (pyloric stenosis, gastric outlet obstruction, hypertrophic pyloric stenosis)
congenital lack of intrinsic factor (congenital pernicious anemia)
congenital marfan syndrome (marfan syndrome, neonatal marfan syndrome, infantile marfan syndrome)
congenital pernicious anemia (congenital lack of intrinsic factor)
congenital subluxation of the hip (congenital dislocation of the hip, CDH, congenital dysplasia of the hip, developmental dysplasia of the hip, acetabular dysplasia)
congenital torticollis (torticollis, spasmodic torticollis, wry neck)
congestive heart failure (heart failure, CHF, left-sided heart failure)
congestive heart failure in children (CHF in children)
congophilic cerebral angiopathy (senile cerebral amyloid angiopathy, cerebral amyloid angiopathy, cerebrovascular amyloidosis)
conjunctivitis (pink eye)
constrictive pericarditis (pink eye)
consumption coagulopathy (disseminated intravascular coagulation, DIC)
contact dermatitis (allergic contact dermatitis, irritant contact dermatitis)
conversion disorder (hysterical conversion)
convulsions with fever (febrile seizures)
corneal ulcers (keratitis)
coronary artery disease (coronary heart disease, CHD, CAD)
coronary artery spasm (vasospastic angina, variant angina, Prinzmetal's angina)
coronary heart disease (coronary artery disease, CHD, CAD)
cradle cap (seborrheic dermatitis, dandruff)
craniosynostosis (seborrheic dermatitis, dandruff)
creeping eruption (cutaneous larvae migrans)
crescentic glomerulonephritis (rapidly progressive glomerulonephritis, RPGN)
crib death (sudden infant death syndrome, SIDS)
croup (acute laryngotracheobronchitis)
cryptorchidism (undescended testicle)
curvature of the spine (scoliosis)
cutaneous candidiasis (yeast infection of the skin and mucous membranes)
cutaneous larvae migrans (creeping eruption)
cyanotic heart disease (creeping eruption)
cystic fibrosis (CF)
cystine stone disease (cystinuria)
cystinuria (cystine stone disease)
cystitis (urinary tract infections in children, pyelonephritis, urethritis, bladder infection)
cystocele (dropped bladder, fallen bladder)
cytomegalovirus (CMV)