Managing inborn errors of metabolism (MMA, PA, MSUD, PKU, Urea Cycle Disorders) requires complex tandem mass spectrometry profiling, prolonged genetic counseling, and lifesaving medical foods. Yet commercial clearinghouses disallow quantitative fractionations (82139), downcode prolonged visits (+99417), and reject essential amino acid formulas (B4162) as over-the-counter supplements. Audit your biochemical genetics claims with statutory coverage rules.
Audit tandem mass spectrometry panels (82139/82136), urine organic acid chromatography (83918), prolonged outpatient geneticist consultations (+99417), and overturn medical food/formula prior-auth denials (HCPCS B4162/B4157).
Office consultation / new patient visit, high complexity medical decision making (60–74 min)
High complexity MDM supported by extensive genetic chart review, metabolic crisis risk, and diagnostic testing.
Prolonged outpatient evaluation and management service add-on, each 15 min (2 units, +30 min)
Prolonged face-to-face and non-face-to-face geneticist counseling time explicitly documented in time statement.
Amino acids, multiple, quantitative, each specimen (Tandem MS/MS fractionation)
Tandem mass spectrometry quantitative fractionation supported by inborn error of metabolism diagnosis.
Organic acids; total, quantitative, each specimen (Gas chromatography / mass spectrometry)
Urine organic acid profiling validated for organic acidemia / branched chain ketoaciduria diagnostics.
Acylcarnitines; quantitative, each specimen (plasma acylcarnitine profile)
Acylcarnitine panel paired with urine organic acids to exclude fatty acid oxidation disorders.
Enteral formula, for pediatrics, special metabolic disease (amino-acid modified, orally administered)
Statutory medical food mandate satisfied with Letter of Medical Necessity (LMN), enzyme assay, and prescription.
Have our rare disease billing specialists review your metabolic lab panels, prolonged geneticist visits, and orphan formula prior-authorization workflows.
Pediatric genetics clinics and academic rare disease centers face extensive prior-authorization disputes on medical formulas, prolonged geneticist counseling, and tandem mass spectrometry analyte unbundling. Let our senior AAPC-certified billing team audit 50 of your active claims or past denials — completely free, with guaranteed under-48-hour findings.
Test our scrub rules and appeal workflow on 50 real claims. Zero commitment, no credit card required.
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