Loading...

    Explore
    • Policy Monitoring
    • Live Policy Feed
    • Billing Codes
    • NPI Medicare & Medicaid
    • Healthcare Providers
    • Health Insurance Payers
    • States
    • Service Lines
    • Taxonomy Codes
    Lookup tools
    • Billing Code Lookup
    • CPT Modifier Lookup
    • Provider Taxonomy Code Lookup
    • Healthcare Provider & Facility Lookup
    • Health Insurance Payer Lookup
    • Payer Contact Directory

    Policy & Benchmark Tools

    • Prior Authorization Lookup
    • Coverage Criteria Lookup
    • Timely Filing Lookup
    • Billing Code Reimbursement Rates
    • Payer Comparison Dashboard
    • Facility Comparison Dashboard
    • All tools

    Company

    • About OpenPayer
    • Data Sources
    • Trek Health
    OpenPayerby Trek Health
    LinkedInYouTube

    © 2026 Trek Health. All rights reserved.

    OpenPayer is built and maintained by Trek Health.

    v1.0.28
    OpenPayerBilling CodesProcedures / Professional ServicesHCPCS hcpcs-g6013-radiation-treatment-multiple-areas-11-19-mev
    Ask Trek AI about this page

    HCPCS G6013: Radiation Treatment Delivery, Complex Custom Blocking

    HCPCS Level II code G6013 describes radiation treatment delivery for three or more separate treatment areas using custom blocking, tangential ports, wedges, rotational beams, compensators, or electron beam techniques with beam energies of 11–19 MeV; service type is external beam radiation therapy with complex custom blocking, and the typical site of service is an outpatient radiation oncology department or hospital radiation therapy suite.

    Customize your policy alerts

    Sign up for hcpcs G6013 policy alerts

    Get alerted when payer policies referencing G6013 are released or updated.

    Monitor payer policy activity

    Receive email alerts as soon as relevant payer policies are published or updated.

    Table of contents

    Progress1 / 6

    Explore openpayer tools

    • Billing CodesCPT, HCPCS, DRG & more
    • Reimbursement RatesCommercial vs. Medicare rate reports
    • ProvidersHospitals & facilities
    • PayersPlans & market footprint
    • Taxonomy CodesNUCC specialty codes
    • ModifiersCPT modifiers & usage
    • Prior AuthorizationPA policies by payer & drug
    • Timely FilingFiling deadlines by payer
    • Coverage CriteriaMedical necessity by payer
    • Payer ContactsClaims, PA & appeals contacts
    View all tools

    Clinical & Coding Specifications

    Clinical Context

    A 64-year-old patient with left-sided breast cancer status post lumpectomy is referred for adjuvant external beam radiation therapy. The radiation oncologist prescribes a course that includes treatment to the breast and a separate regional nodal field, as well as a boost to the surgical cavity, requiring three or more separate treatment areas. The planning team performs CT simulation with custom blocking and designs tangential photon ports for the breast fields, uses wedges to optimize dose homogeneity, and incorporates an electron beam for the superficial boost. Beam energies in the plan include high-energy photons in the 11–19 MeV range for deeper targets and electrons for the boost. Treatment delivery occurs in the radiation oncology department: patient check-in, verification imaging, daily setup with immobilization, delivery of each field with the custom blocks and wedges, documentation of beam parameters, and daily nursing assessment for acute side effects (skin erythema, fatigue). Typical workflow includes physics QA of beam modifiers and compensators prior to the first fraction and weekly chart checks during the course of treatment.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    77261Therapeutic radiology treatment planning; complexOften used for the initial complex planning session when multiple fields, custom blocking, wedges, and compensators are required prior to delivery.
    77280Therapeutic radiology simulation-aided field setting; simpleUsed for basic simulation when simple field setups are required; may be used for components of planning before complex delivery.
    77301Special dosimetry, including arc therapy or complex compensationUsed when special dosimetry calculations, compensators, or wedges are part of the treatment planning and QA for multiple-field deliveries.
    77336Continuing medical physics consultation, includes chart review and weekly physics reviewPerformed weekly during a course of radiation to verify delivered doses and machine parameters for complex multi-field treatments.
    77412Superficial radiation treatment delivery, per fraction to 1 treatment areaNot directly the same as this multi-area code but may be used if a superficial electron boost is delivered as a separate fraction to a single area in the course.

    Related Modifiers

    8 rows

    ModifierDescriptionWhen to Use
    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…
    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…
    76Modifier -76, Repeat Procedure or Service by Same Physician or Other Qualified Health Care Professional, is appended when the same provider performs an identical, medically necessary procedure or…- Use modifier -76 when the same physician or other qualified health care professional performs an identical procedure or service a second (or subsequent) time on the same date of service and the…
    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…

    Related Provider Taxonomies

    8 rows

    Taxonomy CodeSpecialtyNotes
    207L00000XAnesthesiology PhysicianAn anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an opera…
    208M00000XHospitalist PhysicianHospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient ca…
    171000000XMilitary Health Care ProviderActive duty military health care providers not otherwise classified who need to be separately identified for operational, clinical, or administrative …
    2279P3800XPalliative/Hospice Registered Respiratory TherapistA coordinated plan of care to help dying patients and their families handle the burden of terminal care. Effective secretion management and relief of…
    172M00000XMechanotherapistA practitioner of mechanotherapy examines patients by verbal inquiry, examination of the musculoskeletal system by hand, and visual inspection and obs…
    146D00000XPersonal Emergency Response AttendantIndividuals that are specially trained to assist patients living at home with urgent/emergent situations. These individuals must be able to perform C…
    207SM0001XMolecular Genetic Pathology (Medical Genetics) PhysicianA board certified subspecialty, the molecular genetic pathologist is expert in the principles, theory and technologies of molecular biology and molecu…
    174MM1900XMedical Research VeterinarianOther Service Providers · Veterinarian

    Related ICD-10-CM Codes

    28 rows

    ICD-10-CM CodeDescription
    C16.9Malignant neoplasm of stomach, unspecified
    C18.9Malignant neoplasm of colon, unspecified
    C22.0Liver cell carcinoma
    C25.9Malignant neoplasm of pancreas, unspecified
    C33Malignant neoplasm of trachea
    C34.90Malignant neoplasm of unspecified part of unspecified bronchus or lung
    C34.92Malignant neoplasm of unspecified part of left bronchus or lung
    C43.9Malignant melanoma of skin, unspecified
    C44.319Basal cell carcinoma of skin of other parts of face
    C50.911Malignant neoplasm of unspecified site of right female breast

    Showing 1–10 of 28

    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

    • More pages

    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.
    Published by

    Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

    Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.