METHYLMALONIC ACID

General Information

HLAB/HOL Code: MMAS
UPHSM LIS Test #: 8890
Schedule:
Testing Time:
Testing Lab: Labcorp

Specimen Info
Only 1 specimen type required, unless otherwise specified

Volume: 2.0 (0.6) mL serum or plasma
Temperature: Refrigerated
Tube Type: SST, Red top, or Heparin
Collection Info:
Collection:  Separate serum or plasma from cells within one hour of collection.
Causes for Rejection:  Plasma from a light blue-top or yellow-top tube; citrate interferes with assay

Methods

Liquid chromatography/tandem mass spectrometry (LC/MS-MS)

Clinical Utilities

Serum methylmalonic acid (MMA) measurement is used to evaluate individuals with signs and symptoms associated with vitamin B12 deficiency or congenital methylmalonic academia.

CPT Codes

83921

* The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding
is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

Reference Range

0-378 nmol/L