Summary & Overview

CPT 0063U: NPDX ASD ADM Panel I, 32-Amino Acid Biomarker Panel with Algorithm

CPT code 0063U designates a proprietary laboratory test — the NPDX ASD ADM Panel I from Stemina Biomarker Discovery, Inc. — that quantifies 32 amines and applies an algorithmic analysis to detect metabolic signatures associated with autism spectrum disorder (ASD). Nationally, the introduction of PLA codes like 0063U matters because they document use of single-manufacturer assays and enable distinct billing and tracking for novel diagnostics that combine laboratory measurement with proprietary algorithms.

Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The coverage landscape for PLA assays often varies by payer and hinges on clinical validation, algorithm transparency, and demonstrated impact on patient management.

Readers will learn the clinical scope of the test, expected service setting, and how 0063U fits into payer coverage discussions. The publication provides benchmarks for how PLA codes are handled by major payers, summarizes relevant policy considerations affecting algorithm-based diagnostics, and outlines the clinical context for using an ASD-focused metabolic panel. Data not available in the input is noted where applicable.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicare0063UCPTProprietary Laboratory AnalysesAutism Spectrum DisorderBiomarker PanelLaboratory MedicineDiagnostic AlgorithmClinical Diagnostics

Billing Code Overview

CPT code 0063U is a Proprietary Laboratory Analyses (PLA) code for the NPDX ASD ADM Panel I test developed by Stemina Biomarker Discovery, Inc. The test measures a panel of 32 amines and uses an algorithmic analysis of those results to identify metabolic byproduct patterns consistent with an autism spectrum disorder (ASD) diagnosis.

Service type: Laboratory — proprietary biomarker panel with algorithmic interpretation

Typical site of service: Independent clinical laboratory or reference laboratory

Clinical & Coding Specifications

Clinical Context

A pediatric patient aged 18–48 months presents to a developmental pediatrics clinic for evaluation of delayed social communication, repetitive behaviors, and language regression. The clinician documents concern for autism spectrum disorder (ASD) after standardized screening (for example, M-CHAT) and developmental testing. As part of the diagnostic workup, the clinician orders the proprietary laboratory test 0063U (NPDX ASD ADM Panel I from Stemina Biomarker Discovery, Inc.) to assess a metabolic amine profile and algorithmic pattern consistent with ASD. Blood or plasma is collected in the outpatient clinic or affiliated phlebotomy lab; the specimen is sent to the performing laboratory under chain-of-custody and required transport conditions. The laboratory performs quantitative analysis of 32 amines and runs the manufacturer’s proprietary algorithm to generate a report indicating whether the metabolic pattern is consistent with ASD. Results are returned to the ordering clinician, who integrates the laboratory findings with clinical history, behavioral assessments, and developmental testing to inform diagnosis and care planning. Typical sites of service include outpatient physician offices, specialty developmental pediatrics clinics, hospital outpatient laboratories, and the performing reference laboratory. Technical billing for the test is submitted using PLA code 0063U with appropriate specimen and facility modifiers as needed; professional interpretation may be billed if the reporting laboratory or ordering clinician meets payer rules for reporting the professional component.

Coding Specifications

Modifier	Description	When to Use
`26`	Professional component	Use when billing only the interpretation/analysis portion of the test if the laboratory separates technical and professional components.
`TC`	Technical component	Use when billing only the laboratory processing and analysis portion performed by the facility.
`59`	Data not available in the input.	Data not available in the input.
`52`	Reduced services	Use when the test was partially completed or limited compared to standard procedure.
`53`	Discontinued procedure	Use when specimen collection or testing was started but discontinued for clinical reasons.
`76`	Data not available in the input.	Data not available in the input.
`78`	Unplanned return to OR/procedure by same physician following initial procedure	Use rarely when a procedural complication requires repeat collection procedure in same encounter (uncommon for this lab test).
`80`	Assistant surgeon	Data not typically applicable to laboratory testing but included in payer lists; not commonly used for `0063U`.
`AD`	Medical supervision by assistant surgeon	Not typically applicable to this lab test.
`QX`	CRNA service with medical direction by physician	Not applicable to laboratory testing.

Taxonomy Code	Specialty	Notes
`208000000X`	Pediatrics	Ordering clinicians often include pediatricians evaluating developmental delay.
`2081P0200X`	Developmental-Behavioral Pediatrics	Specialists who assess ASD and order specialized diagnostic testing.
`2085P0207X`	Neurology	Pediatric neurologists involved in neurodevelopmental workups may order metabolic testing.
`261QM0800X`	Clinical Laboratory	Laboratories and laboratory directors responsible for performing and reporting the test.
`207Q00000X`	Psychiatry	Child and adolescent psychiatrists involved in ASD diagnostic teams may order or interpret results.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`F84.0`	Autistic disorder	Primary diagnosis for which the `0063U` ASD metabolic panel is intended to support evaluation of metabolic patterns associated with autism spectrum disorder.
`F84.9`	Pervasive developmental disorder, unspecified	Used when an ASD-related pervasive developmental disorder is suspected but not yet specified; laboratory findings may inform differential diagnosis.
`R62.0`	Delayed milestone in childhood	Represents developmental delay prompting metabolic and neurodevelopmental evaluation, including specialized biomarker testing.
`R45.0`	Nervousness and anxiety	Behavioral symptoms often present in children with ASD; may be part of the clinical picture leading to diagnostic testing.
`Z13.89`	Encounter for screening for other disorder	Used for screening/assessment visits where targeted laboratory panels are ordered as part of an evaluation.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`81002`	Urinalysis, non-automated, without microscopy	Pre-analytic screening or concurrent metabolic screening sometimes ordered in neurodevelopmental evaluations.
`80053`	Comprehensive metabolic panel (CMP)	Routine metabolic screening that may be ordered alongside specialized biomarker panels to assess systemic contributors.
`81479`	Unlisted molecular pathology procedure	Used when no specific molecular/proprietary code exists for custom or novel analyses; historically used prior to availability of PLA codes like `0063U`.
`82043`	Vitamin B12; measurement	Common adjunctive laboratory test during developmental or metabolic evaluations.
`83036`	Hemoglobin; glycosylated (A1C)	Occasionally part of broader metabolic assessment in multidisciplinary evaluations.