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    v1.0.28
    OpenPayerBilling CodesProcedures / Professional ServicesHCPCS hcpcs-g0538-ascvd-risk-management-clinical-staff-monthly
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    HCPCS G0538: ASCVD Risk Management, Clinical Staff Time, Monthly

    Medicare pays $18 on average nationally for this procedure.

    HCPCS Level II code G0538 describes a monthly clinical staff service for atherosclerotic cardiovascular disease (ASCVD) risk management, documenting clinical staff time spent delivering care coordination, risk assessment, counseling, and ongoing management focused on ASCVD prevention and secondary risk reduction; service type is clinical staff time for chronic disease risk management and the typical site of service is ambulatory outpatient clinics or primary care settings where staff provide recurring monthly follow-up and care coordination.

    For related coverage guidance, see recent payer policy updates: Esophagogastroduodenoscopy (EGD) Coverage Policy, Magnetic Sphincter Augmentation for the Treatment of Gastroesophageal Reflux Disease (GERD), Fecal Analysis in the Diagnosis of Intestinal Dysbiosis and Fecal Microbiota Transplant Testing.

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    Table of contents

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    Clinical & Coding Specifications

    Clinical Context

    A typical patient is a 62-year-old man with established atherosclerotic cardiovascular disease (history of myocardial infarction and peripheral arterial disease) enrolled in a primary care or cardiology practice that uses team-based care. The patient has scheduled monthly chronic disease management follow-up conducted by clinical staff (nurse care manager or medical assistant) under the supervision of a physician or advanced practice provider. The clinical workflow for G0538 includes: initial review of the patient’s medication adherence and refill history, documentation of blood pressure and weight, reconciliation of current lipid-lowering and antiplatelet therapies, brief counseling on smoking cessation and diet, and coordination of laboratory orders (lipid panel, basic metabolic panel) and referrals when indicated. Clinical staff document time spent providing these activities each calendar month; billing is submitted by the supervising provider or clinic for per-calendar-month clinical staff time for a patient with atherosclerotic cardiovascular disease risk management services.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    99490Chronic care management services, at least 20 minutes of clinical staff time directed by a physician or other qualified health care professional, per calendar month, for patients with multiple chronic conditionsOften provided alongside G0538 when a patient qualifies for broader chronic care management and time-based services are tracked separately.
    99487Complex chronic care management services, first hour of clinical staff time directed by a physician or other qualified health care professional, per calendar monthUsed for patients with high complexity who require more intensive monthly care management than G0538 alone.
    99495Transitional care management services with moderate complexity medical decision making; communication within 2 business days and face-to-face within 14 daysMay be billed when a patient with ASCVD transitions from hospital to outpatient care and requires follow-up in addition to monthly risk management.
    93000Electrocardiogram, routine ECG with at least 12 leads; with interpretation and reportCommon diagnostic test ordered as part of cardiovascular risk assessment and coordinated during the monthly management process.
    80061Lipid panelOrdered periodically to monitor lipid control and therapy effectiveness as part of ASCVD risk management documented for G0538.

    Related Modifiers

    9 rows

    ModifierDescriptionWhen to Use
    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.,…
    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…
    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…
    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…
    78CPT modifier -78 indicates an unplanned, related return to the operating or procedure room by the same provider during the global postoperative period. It is appended when treatment for a…- Use modifier -78 when an unplanned, related complication during the original procedure’s global postoperative period requires the patient to return to a formal operating or procedure room and the…
    80CPT® Modifier 80 (Assistant Surgeon) is appended to a surgical CPT code when a physician (MD or DO) provides full, continuous assistance throughout the operative procedure. It is intended only for…- Use CPT Modifier -80 when a physician (MD or DO) serves as an assistant surgeon and provides full, continuous assistance throughout the entire operative procedure; append -80 to the surgical CPT…
    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…

    Related Provider Taxonomies

    8 rows

    Taxonomy CodeSpecialtyNotes
    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…
    208000000XPediatrics PhysicianA pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectru…
    207R00000XInternal Medicine PhysicianA physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults…
    367A00000XAdvanced Practice MidwifeAdvanced practice midwifery encompasses the independent provision of care during pregnancy, childbirth, and the postpartum period; sexual and reproduc…
    363L00000XNurse Practitioner(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision mak…
    246X00000XCardiovascular Specialist/TechnologistAn allied health professional who performs diagnostic examinations at the request or direction of a physician in one or more of the following three ar…
    251300000XLocal Education Agency (LEA)The term local education agency means a public board of education or other public authority legally constituted within a State to either provide admin…
    376K00000XNurse's Aide(1) An unlicensed individual who is trained to function in an assistive role to the licensed nurse in the provision of patient/client activities as de…

    Related ICD-10-CM Codes

    28 rows

    ICD-10-CM CodeDescription
    E11.22Type 2 diabetes mellitus with diabetic chronic kidney disease
    E11.51Type 2 diabetes mellitus with diabetic peripheral angiopathy without gangrene
    E11.65Type 2 diabetes mellitus with hyperglycemia
    E11.9Type 2 diabetes mellitus without complications
    E66.9Obesity, unspecified
    E78.1Pure hyperglyceridemia
    E78.2Mixed hyperlipidemia
    E78.5Hyperlipidemia, unspecified
    F17.210Nicotine dependence, cigarettes, uncomplicated
    G45.9Transient cerebral ischemic attack, unspecified

    Showing 1–10 of 28

    Related Payer Policy Updates

    Specialty: Gastroenterology1 / 3

    7 rows

    PolicyPayerEffective Date
    Esophagogastroduodenoscopy (EGD) Coverage Policyevicore2026-11-05
    Magnetic Sphincter Augmentation for the Treatment of Gastroesophageal Reflux Disease (GERD)univerahealthcare2026-10-15
    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
    Celiac Disease 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-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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