A-T Ataxia-telangiectasia
AAA Abdominal aortic aneurysm
AAS Aarskog-Scott syndrome
ACC Agenesis of the corpus callosum
ACS Acute coronary syndrome
AD Alzheimer's Disease
AD Attachment disorder
ADD Attention Deficit Disorder
ADD-RT Attention Deficit Disorder-Residual Type
ADEM Acute disseminated encephalomyelitis
ADHD Attention Deficit Hyperactivity Disorder
AF Atrial fibrillation
AGS Aicardi-Goutieres syndrome
AHC Alternating hemiplegia of childhood
AIDS Acquired Immune Deficiency Syndrome
AIP Acute intermittent porphyria
ALA DD Aminolevulinic acid dehydratase deficiency porphyriaDoss porphyria/ALA dehydratase deficiency/Plumboporphyria (the disease is known by multiple names)
ALI Acute lung injury
ALS Amyotrophic Lateral Sclerosis
AMD Age-related Macular Degeneration
AOS Apraxia of speech
APA Aldosterone-Producing Adenoma
APS Antiphospholipid syndrome
ARBD Alcohol-Related Birth Defects
ARD Adult Refsum disease
ARDS Acute Respiratory Distress Syndrome
AS Ankylosing Spondylitis
AS Asperger syndrome
ASDs Autism spectrum disorders
AVMs Arteriovenous malformations
BBS Bashful Bladder Syndrome (see Paruresis)
BD Binswanger's disease
BEB Benign essential blepharospasm
BEH Behaviorally/Emotionally Handicapped
BH Behaviorally Handicapped
BMD Becker's muscular dystrophy
BPH Benign prostatic hyperplasia
BS Bloom's syndrome
BSE Bovine spongiform encephalopathy
BSS Brown-Sequard syndrome
BV Bacterial Vaginosis
CACH Central Nervous System Hypomyelination
CAD Coronary artery disease
CAPD Central Auditory Processing Disorder
CCD Considerable Conduct Disorder
CCHF Crimean-Congo haemorrhagic fever
CCHS Congenital Central Hypoventilation Syndrome
CCM Cerebral cavernous malformation
CDG Congenital disorder of glycosylation
CDGS Carbohydrate deficient glycoprotein syndrome
CEP Congenital erythropoietic porphyria
CESD Cholesteryl ester storage disease
CF Cystic Fibrosis
CFIDS Chronic Fatigue Immune Dysfunction Syndrome
CFS Chronic fatigue syndrome
CGBD Corticobasal ganglionic degeneration
CH Cluster headache
CHD Congenital Heart Disease
CHD Coronary heart disease
CHD Hip dysplasia (human)#CongenitalCongenital hip dysplasia
CHF Congestive heart failure
CIDP Chronic inflammatory demyelinating polyneuropathy
CIPA Congenital insensitivity to pain with anhidrosis
CJD Creutzfeldt-Jakob disease
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CMT disease Charcot-Marie-Tooth disease
COFS Cerebro-oculo-facio-skeletal syndrome
COPD Chronic Obstructive Pulmonary Disease
CP Cerebral Palsy
CPDD Calcium pyrophosphate deposition disease
CPM Central pontine myelinolysis
CPPS Chronic Pelvic Pain Syndrome (see UCPPS)
CRF Chronic Renal Failure
CRKP Carbapenem resistant Klebsiella pneumonia
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CSA Central sleep apnea
CSD Cat scratch disease
CVD Cardiovascular disease
DAS Developmental apraxia of speech
DBA Diamond Blackfan anemia
DBMD Duchenne/Becker Muscular Dystrophy
DD Developmental disability
DEF Deaf
DF Dengue Fever
DH Developmental disabilityDevelopmentally handicapped
DHF Dengue hemorrhagic fever
DiG DiGeorge syndrome
DLB Dementia with Lewy bodies
DM Diabetes mellitus
DMD Duchenne muscular dystrophy
DP Aminolevulinic acid dehydratase deficiency porphyriaDoss porphyria/ALA dehydratase deficiency/Plumboporphyria (the disease is known by multiple names)
DRSP disease Drug-resistant Streptococcus pneumoniae disease
DS Down syndrome
DSPS Delayed sleep phase syndrome
DTs Delirium tremens
DVD Developmental verbal dyspraxia
DVT Deep vein thrombosis
ED Emotionally disturbed
EDS Ehlers-Danlos syndrome
EDS Excessive daytime sleepiness
EEE Eastern equine encephalitis
EHK Epidermolytic hyperkeratosis
EMH Educable mentally handicapped
EMR Educable mentally retarded
ENS Epidermal nevus syndrome
EPM Extrapontine myelinolysis
EPP Erythropoietic protoporphyria
ESRD Chronic kidney diseaseEnd Stage Renal Disease
ESS Empty Sella Syndrome
FAE Fetal Alcohol Effects
FAS Fetal Alcohol Syndrome
FASDs Fetal Alcohol Spectrum Disorders
FFI Fatal familial insomnia
FMA Focal Muscular Atrophies
FMD Fibromuscular dysplasia
FMS Fibromyalgia Syndrome
FSP Familial spastic paraparesis
FTD Frontotemporal dementia
FVS Fetal valproate syndrome
FXS Fragile X syndrome
GAD Generalized anxiety disorder
GAN Giant axonal neuropathy
GAS disease Group A Streptococcal disease
GBS Guillain-Barré Syndrome
GBS disease Group B Streptococcal disease
GCE Glycine encephalopathy
GD Gestational diabetes
GERD Gastroesophageal reflux disease
GI Gastrointestinal
GIB Gastrointestinal bleeding
GN Glossopharyngeal neuralgia
GSS disease Gerstmann-Straussler-Scheinker disease
GT/LD Gifted and learning disabled
GVHD Graft-versus-host disease
GWD Guinea worm disease
HAS Holmes-Adie syndrome
HCP Hereditary coproporphyria
HD Huntington's Disease
HDL2 Huntington's disease–like 2
HFA High Functioning Autism
HFMD Hand, foot, and mouth disease
HFRS Hemorrhagic fever with renal syndrome
HHC or GHC(Haemochromatotis. Also Hemochromatosis) HI Hearing impaired
HiB disease Haemophilus influenzae type B disease
HMSN Type III Hereditary Motor and Sensory Polyneuropathy Type III (see Dejerine Sottas syndrome)
HOH Hard of hearing
HPN Hypertension
HPRT deficiency hypoxanthine-guanine phosphoribosyl transferase deficiency
HPS Hantavirus pulmonary syndrome
HPV Infection Human Papillomavirus Infection
HSP Hereditary spastic paraplegia
IBD Inflammatory bowel disease
IBM Inclusion body myositis
IBS Ichthyosis bullosa of Siemens
IBS Irritable bowel syndrome
IED Intermittent Explosive Disorder
IFAP syndrome Ichthyosis follicularis, alopecia, and photophobia syndrome
IHA Idiopathic Hyperaldosteronism
INAD Infantile neuroaxonal dystrophy
IP Incontinentia pigmenti
IRD Infantile Refsum disease
IS Infantile spasm
ITP Idiopathic thrombocytopenic purpura
JAS Juvenile Anklosing Spondylitis
JE Japanese encephalitis
JHD Juvenile Huntington's disease
JRA Juvenile Rheumatoid Arthritis
KS Kawasaki syndrome
KSS Kearns-Sayre syndrome
KTS Klippel-Trenaunay syndrome
KTW Syndrome Klippel-Trenaunay-Weber Syndrome
LCM Lymphocytic choriomeningitis
LD Learning Disabilities/Differences
LD Legionnaires' Disease
LEMS Lambert-Eaton myasthenic syndrome
LFA Low Functioning Autism
LGV Lymphogranuloma venereum
LKS Landau-Kleffner syndrome
LNS Lesch-Nyhan syndrome
LP Little person/people (see Dwarfism)
LP Lipoid proteinosis
MAC Mycobacterium avium complex
MBD Minimal brain dysfunction
MCS Multiple chemical sensitivityMultiple Chemical Sensitivities
MD Muscular dystrophy
MDR TB Multi-drug-resistant tuberculosis
MID Multi-infarct dementia
MJD Machado-Joseph disease
ML mucolipidoses
MLD Metachromatic leukodystrophy
MMA Monomelic amyotrophy
MMR measles, mumps, rubella
MMRV measles, mumps, rubella, varicella
MND motor neuron disease
MOH Medication overuse headaches
MPD Myeloproliferative disorders
MPS I Mucopolysaccharoidosis Type I (see Hurler syndrome)
MPS II Mucopolysaccharoidosis Type II (see Hunter syndrome)
MPS III Mucopolysaccharoidosis Type III (see Sanfilippo syndrome)
MPS IV Mucopolysaccharoidosis Type IV (see Morquio syndrome)
MPS VI Mucopolysaccharoidosis Type VI (see Maroteaux-Lamy syndrome)
MPS VII Mucopolysaccharoidosis Type VII (see Sly syndrome)
MR/DD Mentally retarded/Developmentally disabled
MS Multiple Sclerosis
MSA Multiple system atrophy
MSDD Multi-Sensory Developmental Delays
NAS Neonatal Abstinence Syndrome
NBIA Neurodegeneration with brain iron accumulation
NCL Neuronal Ceroid Lipofuscinosis
NF1 Neurofibromatosis type 1
NF2 Neurofibromatosis type 2
NKH Nonketotic hyperglycinemia
NLD Nonverbal learning disability
NMDs Neuronal migration disorders
NMO Neuromyelitis optica
NMS Neuroleptic malignant syndrome
NP Niemann-Pick disease
NPH Normal pressure hydrocephalus
NTD Neural Tube Defect
NTDs Neural tube defects
OA Osteoarthritis
OCD Obsessive-Compulsive Disorder
ODD Oppositional Defiant Disorder
OMA Ocular Motor Apraxia
ON Osteonecrosis
OPC Oropharyngeal Candidiasis
OPCA Olivopontocerebellar atrophy
OSA Obstructive sleep apnea
PBC Primary biliary cirrhosis
PBD Peroxisome biogenesis disorders
PCOS Polycystic ovarian syndrome
PCT Porphyria cutanea tarda
PD Parkinson's disease
PDD Pervasive Developmental Disorder
PDD-NOS Pervasive developmental disorder not otherwise specified
PDD/NOS Pervasive developmental disorder not otherwise specified
PLMD Periodic limb movement disorder
PLS Primary lateral sclerosis
PMD Pelizaeus-Merzbacher disease
PML Progressive multifocal leukoencephalopathy
PMS Premenstrual Syndrome
POTS Postural orthostatic tachycardia syndrome
PPMA Postpolio Progressive Muscular Atrophy
PPS Post-polio syndrome
PSC Primary sclerosing cholangitis
PSP Progressive supranuclear palsy
PVL Periventricular leukomalacia
PW Port-wine stain
RA Rheumatoid Arthritis
RAD Reactive Airway Disease
RIND Reversible ischemic neurologic deficit
RLF Retrolental fibroplasia
RLS Restless legs syndrome
RMDs Repetitive motion disorders
ROP Retinopathy of prematurity
RS Reye's syndrome
RSD Reflex Sympathetic Dystrophy
RTI Respiratory Tract Infection
SARS Severe Acute Respiratory Syndrome
SB Spina bifida
SBS Shaken Baby Syndrome
SC Sydenham chorea
SD Saint Vitus's dance (see Sydenham chorea)
SIDS Sudden Infant Death Syndrome
SIS Shaken infant syndrome
SLE Systemic lupus erythematosus
SMA Spinal Muscular Atrophy
SMEI Severe myoclonic epilepsy of infancy
SMS Smith-Magenis Syndrome
SOD Septo-optic dysplasia
SPS Stiff person syndrome
SSPE Subacute sclerosing panencephalitis
STD Sexually Transmitted Disease
STEMI ST-elevation myocardial infarction
SUNCT Headache Short-lasting, Unilateral, Neuralgiform headache
SWS Sturge-Weber syndrome
TAC Trigeminal autonomic cephalgia
TB Tuberculosis
TBI Traumatic brain injury
TCS Tethered cord syndrome
TEF Tracheoesophageal fistula
TIA Transient ischemic attack
TMH Trainable mentally handicapped
TMJ/TMD Temporomandibular joint disorder
TMR Trainable mentally retarded
TN Trigeminal neuralgia
TOS Thoracic Outlet Syndrome
TS Tourette syndrome
TS Tuberous sclerosis
TSC Tuberous sclerosis
TSEs Transmissible spongiform encephalopathies
TSP Tropical spastic paraparesis
TTH Tension type headache
TTP Thrombotic thrombocytopenic purpura
UC Ulcerative Colitis
UDA Urticaria-deafness-amyloidosis
UTIs Urinary Tract Infections
VCFS Velo cardio facial syndrome
vCJD variant Creutzfeldt-Jakob disease
VD Venereal disease
VHF Viral Hemorrhagic Fever
VHL Von Hippel-Lindau Disease
VP Variegate porphyria
VSD Ventricular septal defect
VVC Vulvovaginal candidiasis
WD Wilson's disease
WEE Western equine encephalitis
WS Williams Syndrome
XDR TB Extensively drug-resistant tuberculosis
XLSA X-linked sideroblastic anemia
XP Xeroderma pigmentosa
YSS Young Simpson syndrome
YVS Yunis-Varon syndrome
ZBLS Zadik Barak Levin syndrome
ABCD syndrome albinism, black lock, cell migration disorder
ACTH deficiency Adrenocorticotropic hormone deficiency
ARND Alcohol-Related Neurodevelopmental Disorder
CADASIL Cerebral Autosomal Dominant Arteriopathy with Sub-cortical Infarcts and Leukoencephalopathy
CHARGE syndrome Coloboma of the eye, Heart defects, Atresia of the nasal choanae, Retarded growth & or development, Genital abnormalities, Ear abnormalities
CP/CPPS Chronic prostatitis/chronic pelvic pain syndrome
HELLP syndrome Hemolytic anemia, Elevated Liver enzymes and Low Platelet count syndrome
IBIDS syndrome ichthyosis, brittle hair, intellectual impairment, decreased fertility, and short stature syndrome
IC/PBS Interstitial cystitis/painful bladder syndrome
ICF syndrome Immunodeficiency, Centromere instability and Facial anomalies syndrome
NPC1 Niemann-Pick disease, type C1
PKAN Panthothenate kinase-associated neurodegeneration
Q fever Query fever
UCPPS Urologic chronic pelvic pain syndrome (IC/PBS + CP/CPPS)
VWM disease Vanishing White Matter disease
WAGR syndrome Wilms tumor, Aniridia, Genitourinary anomalies, and mental Retardation syndrome