Table 5.

Common Comorbid Medical Disorders, Conditions, and Symptoms

System	Examples of disorders, conditions, and symptoms
Neurological	Stroke, dementia, Parkinson disease, seizure disorders, headache disorders, traumatic brain injury, peripheral neuropathy, chronic pain disorders, neuromuscular disorders
Cardiovascular	Angina, congestive heart failure, dyspnea, dysrhythmias
Pulmonary	COPD, emphysema, asthma, laryngospasm
Digestive	Reflux, peptic ulcer disease, cholelithiasis, colitis, irritable bowel syndrome
Genitourinary	Incontinence, benign prostatic hypertrophy, nocturia, enuresis, interstitial cystitis
Endocrine	Hypothyroidism, hyperthyroidism, diabetes mellitus
Musculoskeletal	Rheumatoid arthritis, osteoarthritis, fibromyalgia, Sjögren syndrome, kyphosis
Reproductive	Pregnancy, menopause, menstrual cycle variations
Sleep disorders	Obstructive sleep apnea, central sleep apnea, restless legs syndrome, periodic limb movement disorder, circadian rhythm sleep disorders, parasomnias
Other	Allergies, rhinitis, sinusitis, bruxism, alcohol and other substance use/dependence/withdrawal