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Test Code
SynonymsMicroalbumin/Creatinine Ratio, Urine
Container TypeLeakproof plastic urine container or 24 hour dark plastic urine container
Supply Item Numberpicture1388 or picture1108
Specimen TypeRandom, first morning or 24 hour urine collection
Preferred Volume40 mL
Minimum Volume3 mL
Collection Procedure40 mL aliqout of random, first morning or 24 hour urine collection in a leakproof plastic urine container for random specimens or a 24 hour dark plastic urine container for 24 hour collections. Refrigerate during collection.
Store and TransportRefrigerated
StabilityRefrigerated 2 weeks  
Alternate SpecimensUrines preserved in the boric acid tubes (BD C&S tubes)
LimitationsOptimal urine sample should be free of contaminants including red blood cell contamination.
CPT Codes82043, 82570
Billing CodeMALBCR
Test ScheduleMon-Sat
Turnaround Time1-2 days
MethodImmunoturbidimetric, Enzymatic (IDMS Traceable), Calculation
Test IncludesMicroalbumin, Random Urine, mg/L; Creatinine, Random Urine, mg/dL; Microalbumin/Creatinine Ratio, mg/g
Reference Ranges
Microalbumin, Urine RandomLT 18mg/L
Creatinine, Urine Random19-311mg/dL
Microalbumin/Creatinine Ratiomg/g
LT 30Normal-Repeat yearly
30-300Increased risk for diabetic nephropathy. Two of three A/C ratios in this range indicate microalbuminuria
GT 300Two of three A/C ratios in this range confirms overt clinical nephropathy

Interface Codes
typeorder codetest descriptionresult coderesult descriptionunitsdecimal placesloinc code
o84999.Z136Microalb/Creat Ratio, Urine
r84999.Z136Microalb/Creat Ratio, Urine82043.Z2Microalbumin, Urine, mg/Lmg/L014957-5
r84999.Z136Microalb/Creat Ratio, Urine82570.Z14Creatinine, Urine, mg/dLmg/dL02161-8
r84999.Z136Microalb/Creat Ratio, Urine84999.Z266Ratiomg/g014959-1