• Sacroiliitis
  • SAD [seasonal affective disorder]
  • SAH [subarachnoid hemorrhage]
  • Salicylate poisoning
  • Salivary gland inflammation
  • Salmonella infection
  • Salpingitis
  • San Joaquin Valley fever
  • Sarcoidosis
  • SARS
  • SBE [subacute bacterial endocarditis]
  • SBO [small bowel obstruction]
  • SBP [spontaneous bacterial peritonitis]
  • Scabies
  • Scar, hypertrophic
  • SCC [squamous cell carcinoma]
  • Schistosomiasis
  • Schizoaffective disorder
  • Schizophrenia
  • Sciatica
  • SCID [severe combined immunodeficiency]
  • SCLC [small cell lung cancer]
  • Sclerodactyly, CREST
  • Scleroderma
  • Scoliosis
  • Scrofula
  • Scurvy
  • SEA [spinal epidural abscess]
  • Sea sickness
  • Seasonal affective disorder
  • Seasonal allergies
  • Seasonal influenza infection
  • Seborrheic dermatitis
  • Seborrheic keratosis
  • Secondarily generalized tonic clonic seizures in adults
  • Secondary hyperparathyroidism
  • Seizures
  • Seminoma
  • Senile dementia (evaluation of)
  • Senior abuse
  • Sepsis in adults
  • Sepsis in children
  • Septic arthritis
  • Serotonin syndrome
  • Severe acute respiratory syndrome
  • Severe combined immunodeficiency
  • Sexual abuse and assault
  • Sexual development disorders
  • Sexual dysfunction in men
  • Sexual dysfunction in women
  • Sexually transmitted disease
  • Sezary syndrome
  • Shaken baby syndrome
  • Shigella infection
  • Shingles
  • Shock
  • Shock, stress-related
  • Short bowel syndrome
  • Short gut syndrome
  • Short stature, growth hormone deficiency
  • Shortness of breath (evaluation of)
  • Shoulder dislocation
  • Shoulder impingement syndrome
  • SIADH [syndrome of inappropriate antidiuretic hormone]
  • Sialadenitis
  • Sicca syndrome
  • Sickle cell anemia
  • SIDS [sudden infant death syndrome]
  • Silent thyroiditis
  • Silicosis
  • Singultus
  • SIRS [systemic inflammatory response syndrome]
  • Sixth disease
  • Sjogren syndrome
  • SJS [Stevens-Johnson syndrome]
  • SK [seborrheic keratosis]
  • Skin cancer
  • Skull fractures
  • Skunk bite
  • Slapped cheek disease
  • SLE [systemic lupus erythematosus]
  • Sleep disorders
  • Sleep walking
  • Sleep-disordered breathing
  • Slipped capital femoral epiphysis
  • Small bowel obstruction
  • Small cell lung cancer
  • Smell disorders (evaluation of)
  • Smoke inhalation
  • Smoking cessation
  • Snake bites
  • Snoring
  • Social anxiety disorder
  • Sodium disorders
  • Soft tissue sarcoma
  • Solar keratosis
  • Somatotropin deficiency
  • Sore throat
  • Spasms, infantile
  • Spastic colon
  • Spina bifida and neural tube defects
  • Spinal compression fractures
  • Spinal cord compression
  • Spinal cord inflammation
  • Spinal cord injury, chronic
  • Spinal cord trauma
  • Spinal epidural abscess
  • Spinal stenosis
  • Spontaneous bacterial peritonitis
  • Sporotrichosis
  • Sports preparticipation physical
  • Sprue, celiac
  • Squamous cell carcinoma
  • Squamous cell carcinoma of the skin
  • SSRI poisoning
  • ST-elevation myocardial infarction
  • Stable angina, chronic
  • Stable ischemic heart disease
  • Staphylococcal toxic shock syndrome
  • Staphylococcus aureus, methicillin resistant
  • Status epilepticus
  • STD [sexually transmitted disease]
  • Stein-Leventhal syndrome
  • STEMI [ST-elevation myocardial infarction]
  • Stevens-Johnson syndrome
  • Still's disease
  • Stimulant abuse
  • Stomach cancer
  • Stomach flu
  • Stomatitis
  • Strabismus
  • Strep throat
  • Streptococcal sore throat
  • Stress disorder, traumatic acute
  • Stress headache
  • Stress urinary incontinence
  • Stroke
  • Strongyloides infection
  • Stye and chalazion
  • Subacromial bursitis
  • Subacute bacterial endocarditis
  • Subacute granulomatous thyroiditis
  • Subacute lymphocytic thyroiditis
  • Subarachnoid hemorrhage
  • Subcortical vascular dementia
  • Subdural hematoma
  • Substance abuse
  • Sudden cardiac death
  • Sudden infant death syndrome
  • Suicide risk management
  • Sunburn
  • Sunstroke
  • Superficial vein thrombophlebitis
  • Superior vena cava syndrome
  • Supraglottitis
  • Supraventricular atrial tachycardia
  • Surgical abdomen (evaluation of)
  • Sustained ventricular tachycardias
  • SVC [superior vena cava] syndrome
  • SVT [superficial vein thrombophlebitis]
  • SVT [supraventricular tachycardia]
  • SVT [sustained ventricular tachycardia]
  • Sweating, excessive
  • Swimmer's ear
  • Syndrome of inappropriate antidiuretic hormone
  • Syndrome X
  • Synovial cyst
  • Synovitis, transient, of the hip
  • Syphilis infection
  • Syringomyelia
  • Systemic candidiasis
  • Systemic lupus erythematosus
  • Systemic sclerosis, scleroderma
  • Systemic vasculitis