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    v1.0.28
    OpenPayerBilling CodesProcedures / Professional ServicesHCPCS hcpcs-g2023-sars-cov-2-specimen-collection-any-source
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    HCPCS G2023: SARS-CoV-2 (COVID-19) Specimen Collection, Any Source

    HCPCS Level II code G2023 describes specimen collection for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2 / COVID-19) from any specimen source; the service is a diagnostic specimen collection procedure typically performed in outpatient clinics, testing sites, urgent care centers, emergency departments, and other ambulatory or point-of-care settings where COVID-19 testing is collected.

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    Table of contents

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    Explore openpayer tools

    • Billing CodesCPT, HCPCS, DRG & more
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    Clinical & Coding Specifications

    Clinical Context

    A typical patient is an adult or pediatric individual presenting for SARS-CoV-2 testing due to symptoms (fever, cough, dyspnea, sore throat, anosmia), known exposure, pre-procedure screening, or public health surveillance. The patient registers at an outpatient clinic, urgent care, drive-through testing site, emergency department, or long-term care facility. Clinical workflow: triage verifies indication for testing and collects demographic and insurance information; a trained clinician or certified medical assistant obtains the specimen using the appropriate technique (nasopharyngeal swab, nasal swab, oropharyngeal swab, saliva, or other approved specimen source); the specimen is labeled, placed in transport medium, and sent to the laboratory with the required documentation; results are reported to the ordering clinician and public health authorities per local requirements. Specimen collection is captured and billed with G2023 as the HCPCS Level II code for the act of specimen collection for SARS-CoV-2 from any specimen source. Typical sites of service include outpatient clinics, urgent care centers, emergency departments, drive-through testing sites, and skilled nursing facilities.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    87635Infectious agent detection by nucleic acid (DNA or RNA); severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) (COVID-19), amplified probe techniqueLaboratory molecular test commonly performed on the specimen collected with G2023.
    87426Infectious agent detection by nucleic acid (DNA or RNA), multiple types or subtypes; SARS-CoV-2, amplified probe technique (obsolete in some payers)Alternative molecular diagnostic code that may be reported by laboratories processing SARS-CoV-2 specimens.
    86328Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) (COVID-19) antigen detection by immunoassayAntigen test performed on collected specimens for rapid point-of-care testing following G2023 collection.
    99000Handling and/or conveyance of specimen for transfer from the physician's office to a laboratory (Use of modifier may vary by payer)Ancillary service sometimes reported in practice workflows when specimens are transported to an external laboratory after collection.
    36415Collection of venous blood by venipuncturePerformed alongside G2023 when a provider also collects blood for serologic or other testing during the same encounter.

    Related Modifiers

    5 rows

    ModifierDescriptionWhen to Use
    26Modifier 26 (Professional Component) identifies and bills only the professional portion of a split service — the physician’s interpretation, report, and medical judgment — when the technical…- Use CPT Modifier -26 when you are billing only the professional component (PC) of a split‑bill eligible service—i.e., you performed the physician interpretation, medical judgment and prepared a…
    52Modifier ‑52 (Reduced Services) indicates that a service or procedure was partially reduced or omitted at the provider’s discretion, allowing reporting of the basic procedure number with a qualifier…- Use modifier -52 when a physician or qualified health professional electively reduces or omits part of a procedure or service (for example, performing fewer required views or omitting a portion of…
    53Modifier 53 (Discontinued Procedure) signals that a surgical or diagnostic service was begun by the physician but terminated because of extenuating circumstances that threatened the patient’s…- Use modifier -53 when a physician/qualified healthcare professional has started a surgical or diagnostic procedure (e.g., anesthesia administered, incision or scope insertion) and then discontinues…
    55Modifier –55 indicates the billing provider furnished only postoperative management for a procedure that has a global surgical period. According to AAPC, this modifier is appended to the same CPT…- Use modifier -55 when billing the same CPT surgical code that has a 10- or 90-day global period and you, as a provider other than the original surgeon, furnished ONLY postoperative management (no…
    62Modifier 62 indicates that two surgeons function as co‑surgeons, each performing distinct parts of the same primary surgical procedure. It is appended to the primary procedure code (and any…- Use modifier -62 when two surgeons act as co‑surgeons (both primary surgeons) on a single definitive primary procedure, each performing distinct parts of the same surgical procedure (append -62 to…

    Related Provider Taxonomies

    8 rows

    Taxonomy CodeSpecialtyNotes
    208D00000XGeneral Practice PhysicianA physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.
    207Q00000XFamily Medicine PhysicianFamily Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadt…
    207L00000XAnesthesiology PhysicianAn anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an opera…
    363A00000XPhysician AssistantA physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and…
    283X00000XRehabilitation HospitalA hospital or facility that provides health-related, social and/or vocational services to disabled persons to help them attain their maximum functiona…
    213ER0200XRadiology PodiatristPodiatric Medicine & Surgery Service Providers · Podiatrist
    193400000XSingle Specialty GroupA business group of one or more individual practitioners, all of who practice with the same area of specialization.
    3747A0650XAttendant Care ProviderAn individual who provides hands-on care, of both a supportive and health related nature, specific to the needs of a medically stable, physically hand…

    Related ICD-10-CM Codes

    27 rows

    ICD-10-CM CodeDescription
    A41.9Sepsis, unspecified organism
    B97.29Other coronavirus as the cause of diseases classified elsewhere
    G93.49Other encephalopathy
    J12.82Pneumonia due to coronavirus disease 2019
    J18.9Pneumonia, unspecified organism
    J20.8Acute bronchitis due to other specified organisms
    J40Bronchitis, not specified as acute or chronic
    J44.9Chronic obstructive pulmonary disease, unspecified
    J45.909Unspecified asthma, uncomplicated
    J98.8Other specified respiratory disorders

    Showing 1–10 of 27

    Related Codes

    HCPCS-G9490-HOME-ASSESSMENT-NON-HOMEBOUND

    HCPCS G9490: Home Visit Patient Assessment for Non-Homebound Beneficiary

    HCPCS-G0008-INFLUENZA-VACCINE-ADMINISTRATION

    HCPCS G0008: Administration of Influenza Virus Vaccine

    HCPCS-G0009-PNEUMOCOCCAL-VACCINE-ADMINISTRATION

    HCPCS G0009: Administration of Pneumococcal Vaccine

    HCPCS-G0010-HEPATITIS-B-VACCINE-ADMINISTRATION

    HCPCS G0010: Administration of Hepatitis B Vaccine

    HCPCS-G0011-PREP-COUNSELING-HIV-RISK-REDUCTION-ADHERENCE

    HCPCS G0011: Individual PrEP Counseling, HIV Risk Assessment

    HCPCS-G0012-PRE-EXPOSURE-PROPHYLAXIS-INJECTION-HIV-PREVENTION

    HCPCS G0012: Injection of PrEP Drug for HIV Prevention

    HCPCS-G0013-PREP-INDIVIDUAL-COUNSELING-HIV-RISK-REDUCTION

    HCPCS G0013: Individual PrEP Counseling by Clinical Staff

    HCPCS-G0017-PSYCHOTHERAPY-CRISIS-FIRST-60-MINUTES-NON-OFFICE

    HCPCS G0017: Psychotherapy for Crisis, First 60 Minutes

    HCPCS-G0018-PSYCHOTHERAPY-CRISIS-ADDITIONAL-30-MINUTES-NON-OFFICE

    HCPCS G0018: Psychotherapy for Crisis, Additional 30 Minutes

    HCPCS-G0019-COMMUNITY-HEALTH-INTEGRATION-SDOH-CARE-COORDINATION

    HCPCS G0019: Community Health Integration, Person-Centered Assessment

    Showing 1–10 of 1996

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    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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