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Test ID: MEVP    
Methemoglobinemia Evaluation

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CPT Code Information Provides guidance in determining the appropriate Current Procedural Terminology (CPT) code(s) information for each test or profile. The listed CPT codes reflect Mayo Medical Laboratories interpretation of CPT coding requirements. It is the responsibility of each laboratory to determine correct CPT codes to use for billing.

Methemoglobinemia Evaluation

82657-Methemoglobin reductase

83020-Hemoglobin electrophoresis

83021-Hemoglobin A2 and F

83050-Methemoglobin, quantitative

83060-Sulfhemoglobin, quantitative


IEF Confirms

82664-Isoelectric focusing (if appropriate)


Hemoglobin, Unstable, Blood

83068 (if appropriate)


Hemoglobin Variant by Mass Spectrometry (MS), Blood

83789 (if appropriate)


Hemoglobin Electrophoresis, Molecular

81257-HBA1/HBA2 (alpha globin 1 and alpha globin 2) (eg, Alpha thalassemia, Hb Bart hydrops fetalis syndrome, HBH disease) gene analysis for common deletions or variant (eg, Southeast Asian, Thai, Filipino, Mediterranean, alpha3.7, alpha4.2, alpha20.5, and Constant Spring) (if appropriate)

81401-HBB (hemoglobin, beta) (eg, sickle cell anemia, hemoglobin C, hemoglobin E), common variants (eg, HbS, HbC, HbE) (if appropriate)

81403-HBB (hemoglobin, beta, beta-globin) (eg, beta thalassemia), duplication/deletion analysis (if appropriate)

81404-HBB (hemoglobin, beta, beta-Globin) (eg, thalassemia), full gene sequence (if appropriate) Hemoglobin S, Screen, Blood

85660 (if appropriate)


Hemoglobin F, Red Cell Distribution, Blood

88184 (if appropriate)

LOINC® Code Information Provides guidance in determining the Logical Observation Identifiers Names and Codes (LOINC) values for the order and result codes of this test.

Test IDTest Order NameOrder LOINC Code
MEVPMethemoglobinemia EvaluationIn Process


Result IDTest Result NameResult LOINC Code
8268Methemoglobin, B2614-6
9322Methemoglobin Reductase, B32703-1
8272Sulfhemoglobin, B4685-4
2381Hemoglobin A24551-8
2380Hemoglobin A20572-4
586Methemoglobinemia Interpretation59462-2
2382Hemoglobin F4576-5
29224Variant 2In Process
29225Variant 3In Process

LOINC and CPT codes are provided by the performing laboratory.