AA	Amino acids
ACMG	American College of Medical Genetics and Genomics
AO	Administrative order (Department of Health—Philippines)
ASA	Argininosuccinic aciduria
BIO	Biotinidase deficiency
CAH	Congenital adrenal hyperplasia
CDC	Centers for Disease Control and Prevention (United States)
CF	Cystic fibrosis
CH	Congenital hypothyroidism
CHGS	Center for Human Genetic Services
CNSP	California Newborn Screening Program
COVID-19	Coronavirus disease 2019
DOH	Department of Health (Philippines)
ENBS	Expanded newborn bloodspot screening
FAO	Fatty acid oxidation
G6PD	Glucose-6-phosphate dehydrogenase
GAL	Galactosemia
HCY	Homocystinuria
HGB	Hemoglobinopathy
IHG	Institute of Human Genetics (Philippines)
LIMS	Laboratory information management system
LMIC	Low- and middle-income countries
MS/MS	Tandem mass spectrometry
MSUD	Maple syrup urine disease
NBS	Newborn bloodspot screening
NBSCC	Newborn Screening Continuity Clinic (long-term follow-up)
NCNBSS	National comprehensive newborn screening system
NIH	National Institutes of Health (Philippines)
NNSGRC	National Newborn Screening and Global Resource Center (U.S.)
NSC	Newborn Screening Center (screening laboratory)
NSF	Newborn Screening Facility (screening specimen collection site)
NSQAP	Newborn Screening Quality Assurance Program (U.S.-CDC)
NSRC	Newborn Screening Reference Center (Philippines)
NTWG	Newborn Screening Technical Working Group
OA	Organic acid
PHIC	Philippine Health Insurance Corporation (national health insurance)
PKU	Phenylketonuria
PNSP	Philippine Newborn Screening Program
PT	Proficiency testing
QA	Quality assurance
QC	Quality control
RUSP	Recommended uniform screening panel (U.S.)