M1482 HCV RNA Positive — Reimbursement & Policy

HCPCS Level II code M1482 denotes a positive or detectable hepatitis C virus (HCV) RNA test result, capturing either quantitative or qualitative detection during the measurement (denominator identification) period. Nationally, this code is important for surveillance, quality measurement, and program reporting related to HCV diagnosis and linkage-to-care efforts because it signals active or recent viral replication.

Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The analysis highlights payer coverage patterns, reporting expectations, and implications for quality measure populations. Readers will find an overview of how the code is used in performance measurement and clinical workflows, typical sites where the testing occurs, and where to expect limitations in claims-based identification.

The publication provides benchmarks and policy context relevant to HCV RNA detection reporting, explains how M1482 maps to laboratory diagnostic services in outpatient and clinical laboratory settings, and outlines the clinical relevance of a detectable HCV RNA result for case identification and treatment consideration. Data elements not provided in the source input are noted as unavailable rather than inferred.

Billing Code Overview

HCPCS Level II code M1482 documents a positive or detectable hepatitis C virus (HCV) RNA test result, either quantitative or qualitative, identified during the denominator identification period. This code captures laboratory-confirmed viral detection and is used to indicate that HCV RNA was detected for a patient within the defined measurement timeframe.

Service type: Laboratory diagnostic testing for hepatitis C viral RNA
Typical site of service: Clinical laboratory or outpatient specimen collection site

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Clinical Context

A 52-year-old patient with a history of intravenous drug use presents to an outpatient infectious disease clinic for hepatitis C virus (HCV) evaluation and treatment initiation. The clinician orders HCV RNA testing to determine active infection. A venous blood sample is collected at the clinic laboratory during the denominator identification period for quality measurement (e.g., HCV viral load testing as part of a performance measure). The laboratory performs a qualitative or quantitative HCV RNA assay and reports a detectable/positive result. Results are documented in the electronic health record, communicated to the treating clinician, and used to confirm viremia and guide linkage to direct-acting antiviral therapy and public health reporting. Typical sites of service include outpatient clinics, hospital outpatient laboratories, and federally qualified health centers.

Coding Specifications

Modifier	Description	When to Use
`26`	Professional component	Use when billing physician interpretation of laboratory results separate from the facility or technical component
`TC`	Technical component	Use when billing only the laboratory processing and equipment costs for the test

Taxonomy Code	Specialty	Notes
`207RC0000X`	Infectious Disease	Specialists who diagnose and manage HCV infection and interpret RNA results
`207L00000X`	Pathology & Laboratory Medicine	Laboratory directors and pathologists overseeing assay quality and reporting
`207RN0401X`	Internal Medicine - Infectious Disease Hospitalist	Hospital-based physicians who order and act on HCV RNA testing

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`B17.10`	Acute hepatitis C without hepatic coma	Represents acute HCV infection; HCV RNA testing confirms viremia in acute cases
`B18.2`	Chronic viral hepatitis C	Represents chronic HCV infection; HCV RNA is used to document active replication and treatment response
`Z22.52`	Carrier of viral hepatitis C	Indicates known carrier status; RNA testing may be used to monitor for active viremia
`Z11.59`	Encounter for screening for other viral diseases	Used when testing is performed for screening purposes, HCV RNA may follow positive antibody
`O98.511`	Viral hepatitis C complicating pregnancy, first trimester	HCV RNA testing used for diagnosis and management in pregnancy

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`87491`	Infectious agent detection by nucleic acid (DNA or RNA); hepatitis C virus, amplified probe technique, quantitative	Commonly used CPT for quantitative HCV RNA testing when billing molecular laboratory services
`87520`	Infectious agent antigen detection by nucleic acid (DNA or RNA), direct probe technique (e.g., branched DNA), hepatitis C virus; quantitative	Alternative molecular method CPT code used for HCV RNA quantitation depending on assay
`87522`	Infectious agent detection by nucleic acid (DNA or RNA), not otherwise specified; hepatitis C virus, qualitative	Used when the laboratory performs a qualitative HCV RNA assay
`36415`	Collection of venous blood by venipuncture	Typical specimen collection CPT performed immediately prior to HCV RNA testing
`99000`	Handling and/or conveyance of specimen for transfer from physician’s office to laboratory	Used when specimen transport services are billed separately or tracked in workflow

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Summary & Overview

HCPCS M1482: Positive/Detectable Hepatitis C Virus RNA Test Result