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Test ID BLOD0103 Methylmalonic Acid (MMA), Quantitative, Serum

Reporting Name

Methylmalonic Acid, QN, S

Useful For

Evaluating children with signs and symptoms of methylmalonic acidemia


Evaluating individuals with signs and symptoms associated with a variety of causes of cobalamin (vitamin B12) deficiency

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type


Specimen Required


Preferred: Red top

Acceptable: Serum gel

Specimen Volume: 1.5 mL

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 48 days
  Ambient  48 days
  Frozen  48 days

Reference Values

≤0.40 nmol/mL

Day(s) and Time(s) Performed

Monday through Friday; Continuously until noon

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
MMAS Methylmalonic Acid, QN, S 13964-2


Result ID Test Result Name Result LOINC Value
80289 Methylmalonic Acid, QN, S 13964-2

Reject Due To


Mild OK; Gross OK


Mild OK; Gross OK


Mild OK; Gross OK



Method Name

Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)


If not ordering electronically, complete, print, and send 1 of the following forms with the specimen:

General Request Form (T239) (

Benign Hematology Test Request Form (T755) (