320 abbreviations
Abbreviation Meaning
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
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
NPC1 [type C1] 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
PKAN Panthothenate kinase-associated neurodegeneration
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