Summary & Overview
CPT 84210: Pyruvate (Pyruvic Acid) Assay, Blood or CSF
CPT code 84210 designates a laboratory assay that measures pyruvate (pyruvic acid) in patient specimens such as blood or cerebrospinal fluid. This metabolic test supports clinical evaluation of energy metabolism and can aid in diagnosing mitochondrial or metabolic disorders. As a specialized chemistry assay, it is performed in clinical laboratories and hospital lab settings and has national relevance for diagnostic workflows in neurology, genetics, and metabolic medicine.
Key payers included in the analysis are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the procedure, typical sites of service, and payer coverage considerations. The publication presents benchmarking context, coding guidance, and clinical context to clarify where CPT code 84210 fits within laboratory service lines and diagnostic pathways.
The report covers expected use cases for pyruvate testing, typical specimen types, and the clinical scenarios that prompt measurement of pyruvate levels. Data not available in the input includes payer-specific reimbursement rates, associated taxonomies, and linked ICD-10 diagnosis codes; those items are noted as unavailable where relevant. The summary is intended for national audiences including payers, billing professionals, and clinical laboratory managers seeking a clear description and operational context for CPT code 84210.
Billing Code Overview
CPT code 84210 describes a laboratory test that measures the level of pyruvate (pyruvic acid) in a patient specimen, such as blood or cerebrospinal fluid (CSF). The procedure is a biochemical assay performed by a clinical laboratory analyst to assess pyruvate concentration, which can assist in evaluating metabolic function and supporting the diagnosis of certain metabolic or mitochondrial disorders.
Service Type: Laboratory - Chemistry/Metabolic testing
Typical Site of Service: Clinical laboratory; specimen collection commonly occurs in outpatient phlebotomy settings, inpatient hospital laboratories, or specialized diagnostic labs capable of handling blood and CSF specimens.
Clinical & Coding Specifications
Clinical Context
A 6-month-old infant presents to the pediatric neurology clinic with progressive hypotonia, developmental delay, feeding difficulties, and episodes of lactic acidosis documented on basic metabolic panel. The clinician orders metabolic studies to evaluate for inborn errors of metabolism, including measurement of blood and cerebrospinal fluid pyruvate. A lumbar puncture is performed in the hospital inpatient unit to obtain CSF and a venous blood draw is obtained concurrently. The laboratory performs 84210 (pyruvate, pyruvic acid) testing on both specimen types. Results are interpreted in conjunction with lactate levels, amino acid profiles, and genetic testing to assess for disorders such as pyruvate dehydrogenase deficiency or mitochondrial disease. Typical workflow: specimen collection (blood/CSF) → specimen labeling and transport to clinical chemistry/molecular lab → assay performance by lab analyst (84210) → result verification and inclusion in metabolic panel report → clinician review and care planning. Typical site of service: hospital inpatient, pediatric specialty clinic, or reference laboratory. Typical service type: clinical chemistry/metabolic diagnostic testing.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when billing for the interpreting professional only (rare for when lab professional and billing entity are separate). |