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    OpenPayerBilling CodesProcedures / Professional ServicesHCPCS hcpcs-g0013-prep-individual-counseling-hiv-risk-reduction
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    HCPCS G0013: Individual PrEP Counseling by Clinical Staff

    Medicare pays $25 on average nationally for this procedure.

    HCPCS Level II code G0013 describes individual counseling for pre-exposure prophylaxis (PrEP) to prevent human immunodeficiency virus (HIV), including HIV risk assessment (initial or continued), risk-reduction counseling, and medication adherence support; service type is individual PrEP counseling typically provided by clinical staff in ambulatory clinic, sexual health clinic, community health center, or other outpatient settings where PrEP services are delivered.

    For related coverage guidance, see recent payer policy updates: Percutaneous Electrical Nerve Field Stimulation for Functional Abdominal Pain Disorders, Esophagogastroduodenoscopy (EGD) Coverage Policy, Radiofrequency Therapy for Fecal Incontinence.

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    Clinical & Coding Specifications

    Clinical Context

    A 28-year-old cisgender man presents to a community sexual health clinic requesting pre-exposure prophylaxis (PrEP) for HIV prevention after reporting multiple condomless receptive anal sex encounters with partners of unknown HIV status. Clinical staff (licensed practical nurse or certified medical assistant under standing order) perform an initial HIV risk assessment, review adherence considerations, counsel on risk-reduction strategies, and provide medication counseling for daily oral PrEP. The workflow includes: patient registration and consent, brief behavioral and exposure history, baseline rapid or laboratory HIV testing and screening for hepatitis B, creatinine, and sexually transmitted infections as per clinic protocol (may be ordered by clinician), delivery of individualized adherence counseling and risk-reduction education using shared decision-making, documentation of topics covered and time spent, and scheduling of follow-up visits (typically at 1 month then every 3 months). Billing for G0013 is used for the individual counseling session by clinical staff focused on HIV risk assessment, risk reduction, and medication adherence. Typical sites of service include outpatient clinics, community health centers, sexual health clinics, and federally qualified health centers where clinical staff operate under provider protocol. A typical scenario for continued assessment involves a patient on PrEP returning for a counseling visit between laboratory follow-ups to address adherence barriers, side effects, and ongoing risk behaviors.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    99213Office or other outpatient visit for the evaluation and management of an established patient, typically 15 minutesCommonly billed by clinicians for the medical evaluation that accompanies PrEP initiation or follow-up; G0013 covers the individual counseling by clinical staff in addition to clinician E/M when appropriately documented.
    99406Smoking and tobacco use cessation counseling, intermediate, 3-10 minutes (Note: analogous counseling CPT)Behavioral counseling codes like 99406 are conceptually similar; not specific to PrEP but sometimes used for separate tobacco cessation counseling during the same visit.
    87800Infectious agent antigen detection by immunoassay technique, qualitative or semi-quantitative (Note: example for rapid HIV test)Rapid HIV tests or other point-of-care tests are performed alongside counseling; billed separately when appropriate.
    80053Comprehensive metabolic panelBaseline and periodic laboratory monitoring for patients on PrEP, including creatinine, are commonly ordered and billed separately.
    87389HIV-1/2 antigen/antibody immunoassayLaboratory testing for HIV status is directly related to safe provision of PrEP and billed separately.

    Related Modifiers

    7 rows

    ModifierDescriptionWhen to Use
    95Modifier 95 indicates that a service was provided via synchronous, real‑time audio‑video telehealth rather than in‑person. Per CMS, AAPC and professional associations, append modifier 95 to claim…- Use modifier 95 to indicate a service was furnished via synchronous, real‑time audiovisual telehealth (a live audio‑video conference between patient and provider) rather than in‑person. - Pair…
    25CPT modifier 25 indicates that on the same day as another procedure or service, the same physician or other qualified health care professional provided a significant, separately identifiable…- When to apply: Use modifier 25 only on an E/M code to indicate the same provider delivered a significant, separately identifiable E/M service on the same day as another procedure or service — i.e.,…
    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…
    59Modifier 59 indicates a distinct procedural service when two procedures that are not normally billed together are clinically and procedurally separate. The CPT definition (as reiterated by CMS)…- Use modifier -59 to report a distinct procedural service when documentation supports that the procedure reported is not normally billed together with another service on the same day because of a…
    22Modifier –22 (Increased Procedural Services) is used when a reported procedure is substantially more extensive than normally required. The CPT Manual and CMS state it may be appended only when the…- When to use: Append modifier -22 to a procedural CPT code when the service performed is substantially more extensive than the usual service described by that code — i.e., the procedure required…
    23Modifier -23 (Unusual Anesthesia) is used on anesthesia service CPT codes when a procedure that normally requires no anesthesia or only local anesthesia must be performed under general anesthesia…- Use modifier -23 only on anesthesia CPT codes (00100–01999) when a procedure that normally requires no anesthesia or only local anesthesia must be performed under general anesthesia because of…

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    207Q00000X
    207R00000X
    261QP2400X
    2084P0800X
    335E00000X
    207QH0002X
    106E00000X
    2278P1005X

    Related ICD-10-CM Codes

    28 rows

    ICD-10-CM CodeDescription
    A50.9Congenital syphilis, unspecified
    A55Chlamydial lymphogranuloma (venereum)
    A64Unspecified sexually transmitted disease
    B20Human immunodeficiency virus [HIV] disease
    F10.20Alcohol dependence, uncomplicated
    F11.20Opioid dependence, uncomplicated
    F12.20Cannabis dependence, uncomplicated
    F17.210Nicotine dependence, cigarettes, uncomplicated
    F18.10Inhalant abuse, uncomplicated
    F19.10Other psychoactive substance abuse, uncomplicated

    Showing 1–10 of 28

    Related Payer Policy Updates

    Specialty: Gastroenterology1 / 3

    10 rows

    PolicyPayerEffective Date
    Percutaneous Electrical Nerve Field Stimulation for Functional Abdominal Pain Disordersbcbsvermont2026-12-01
    Esophagogastroduodenoscopy (EGD) Coverage Policyevicore2026-11-05
    Radiofrequency Therapy for Fecal IncontinenceCigna2026-10-15
    Magnetic Sphincter Augmentation for the Treatment of Gastroesophageal Reflux Disease (GERD)univerahealthcare2026-10-15
    High-Resolution Anoscopy (HRA)Premera Bluecross2026-10-01
    Gastroesophageal and Gastrointestinal (GI) Services and ProceduresColorado Rocky Mountain Health Plans2026-10-01
    Fecal Analysis in the Diagnosis of Intestinal Dysbiosis and Fecal Microbiota Transplant TestingOscar Health2026-10-01
    Serum Testing for Hepatic Fibrosis in the Evaluation and Monitoring of Chronic Liver DiseaseOscar Health2026-10-01
    Pancreatic Enzyme Testing for Acute PancreatitisOscar Health2026-10-01
    Helicobacter pylori TestingOscar Health2026-10-01

    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-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

    HCPCS-G0022-COMMUNITY-HEALTH-INTEGRATION-ADDITIONAL-30-MIN

    HCPCS G0022: Community Health Integration, Additional 30 Minutes

    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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