Need help choosing the right code?
Ask CasePilot about procedures, modifiers, bundling, and coding guidance.
Try CasePilot© Copyright 2026 American Medical Association. All rights reserved.
The CPT® Code 83775 refers to a laboratory test specifically designed to measure the levels of malate dehydrogenase (MDH) in a biological sample. Malate dehydrogenase is an important enzyme that plays a critical role in various metabolic processes, particularly in the citric acid cycle, which is essential for energy production in cells. This enzyme exists in several isoforms, each differing in its subcellular location and specific functions within the body. The primary action of MDH involves the reversible catalysis of malate to oxaloacetate, a reaction that also facilitates the reduction of NAD+ to NADH. This process occurs mainly in the mitochondria and cytosol, highlighting the enzyme's significance in cellular metabolism. Additionally, MDH is involved in gluconeogenesis, the metabolic pathway that results in the generation of glucose from non-carbohydrate substrates. The measurement of MDH levels is typically conducted using spectrophotometry, a method that quantifies the concentration of substances by measuring the intensity of light absorbed by the sample. This test can provide valuable insights into metabolic function and enzyme activity within the body.
© Copyright 2026 Coding Ahead. All rights reserved.
The malate dehydrogenase (MDH) test, represented by CPT® Code 83775, is indicated for various clinical scenarios where the assessment of metabolic function is necessary. The following conditions may warrant the performance of this laboratory test:
The procedure for measuring malate dehydrogenase (MDH) involves several key steps to ensure accurate results. The following outlines the procedural steps:
After the malate dehydrogenase test is completed, the patient may not require any specific post-procedure care, as the test is non-invasive and does not typically involve any risks. However, it is essential for healthcare providers to communicate the results to the patient and discuss any necessary follow-up actions based on the findings. If abnormal MDH levels are detected, further diagnostic testing or clinical evaluation may be warranted to investigate underlying metabolic conditions or disorders. Additionally, healthcare providers should ensure that patients understand the implications of the test results and any potential lifestyle or treatment modifications that may be recommended.
| Short Descr | ASSAY MALATE DEHYDROGENASE | Medium Descr | ASSAY OF MALATE DEHYDROGENASE | Long Descr | Malate dehydrogenase | Status Code | Statutory Exclusion (from MPFS, may be paid under other methodologies) | Global Days | XXX - Global Concept Does Not Apply | PC/TC Indicator (26, TC) | 9 - Not Applicable | Multiple Procedures (51) | 9 - Concept does not apply. | Bilateral Surgery (50) | 9 - Concept does not apply. | Physician Supervisions | 09 - Concept does not apply. | Assistant Surgeon (80, 82) | 9 - Concept does not apply. | Co-Surgeons (62) | 9 - Concept does not apply. | Team Surgery (66) | 9 - Concept does not apply. | Diagnostic Imaging Family | 99 - Concept Does Not Apply | CLIA Waived (QW) | No | APC Status Indicator | Conditionally packaged laboratory tests | Type of Service (TOS) | 5 - Diagnostic Laboratory | Berenson-Eggers TOS (BETOS) | T1H - Lab tests - other (non-Medicare fee schedule) | MUE | 1 | CCS Clinical Classification | 233 - Laboratory - Chemistry and Hematology |
|
Date
|
Action
|
Notes
|
|---|---|---|
| 2013-01-01 | Changed | Description Changed |
| Pre-1990 | Added | Code added. |
Get instant expert-level medical coding assistance.