ABN
advanced beneficiary notice
CC
chief complain
CMS
centers for medicare and medicaid services
CXR
chest x-ray
EHR /EMR
electronic health / medical record
I and O
intake and output
NS
no show
POMR
problem oriented medical record
ABG
arterial blood gas
CLIA
clinical laboratory improvement amendments
CPT
current procedural terminology
ICD
international classification of diseases
OTC
over the counter
ROM
range of motion
STAT
immediately
PO
per os; aka by mouth