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    OpenPayerBilling CodesMedical Radiation Physics, Dosimetry, Treatment Devices, and Special Services for Radiation TreatmentCPT cpt-77332-simple-treatment-device-design-selection
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    CPT 77332: Simple Treatment Device Design and Selection

    Medicare pays $28 on average nationally for this procedure.

    CPT code 77332 describes participation in the design, construction, and selection of simple treatment devices such as a simple block or simple bolus used to ensure proper dose delivery to the tumor and protection of nearby healthy tissues; service type is radiation therapy accessory design and selection, typically performed in an outpatient radiation oncology clinic or at the radiation therapy treatment facility where devices are fabricated and fitted.

    For related coverage guidance, see recent payer policy updates: Radiation oncology coverage and treatment delivery guidelines, Proton Beam Therapy, Radiation and Oncologic Procedures.

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    Table of contents

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    Clinical & Coding Specifications

    Clinical Context

    A typical patient is an adult with a localized malignancy of the head and neck or breast who is scheduled for external beam radiation therapy. The radiation oncologist evaluates treatment geometry and determines that a simple bolus or simple block is needed to ensure adequate dose buildup at the skin surface or to shield a small area of adjacent normal tissue (for example, a cataract lens shield or small eye block). The workflow includes consultation, simulation (CT or conventional simulation) to define target and critical structures, fabrication or selection of the simple device (simple bolus or simple block) by the treatment team, verification at the treatment machine, and documentation of device selection and use in the radiation therapy plan. The service is typically provided in an outpatient radiation oncology clinic or hospital-based radiation therapy department during the course of planning or the first treatment fractions. Patient-specific considerations such as skin condition, tumor depth, and proximity of organs at risk guide device choice and positioning. The visit and service are documented in the radiation therapy record and the physics/therapy notes to support safe dose delivery and billing for 77332.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    77261Therapeutic radiology treatment planning; complexPerformed when a more complex planning process is required beyond simple device selection; may precede or accompany 77332 if complexity increases.
    77290Therapeutic radiology simulation-aided field set-up and documentation, basic or complex (per session)Simulation sessions are used to set patient geometry and determine need for simple blocks or bolus prior to 77332 selection.
    77336Continuing medical physics consultation, including assessment of treatment parameters, review of treatment delivery, and review of patient dataMedical physics support and consultation often occur alongside device selection and verification for 77332.
    77334Computerized tomography (CT) guidance for setup and localization during radiation therapy deliveryCT-based localization during simulation or treatment may be used to confirm placement of the simple device selected under 77332.
    77370Special medical radiation physics consultationUsed when additional physics input beyond routine planning is needed for device design/selection associated with 77332.

    Related Modifiers

    9 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…
    50Modifier –50 (Bilateral Procedure) is appended to a CPT code when an identical procedure is performed on paired anatomical structures during the same operative session. The AMA states to add…- Use modifier -50 when the same CPT surgical, diagnostic, or radiology procedure is performed on paired anatomical structures (both sides of the body) during the same operative/session by the same…
    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…
    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 Code
    207X00000X
    207YP0228X
    282NW0100X
    176B00000X
    287300000X
    251E00000X
    2080P0202X
    2471M1202X

    Related ICD-10-CM Codes

    24 rows

    ICD-10-CM CodeDescription
    C15.9Malignant neoplasm of esophagus, unspecified
    C20Malignant neoplasm of rectum
    C22.0Liver cell carcinoma
    C25.9Malignant neoplasm of pancreas, unspecified
    C32.9Malignant neoplasm of larynx, unspecified
    C33Malignant neoplasm of trachea
    C34.90Malignant neoplasm of unspecified part of unspecified bronchus or lung
    C41.9Malignant neoplasm of bone and articular cartilage, unspecified
    C43.9Malignant melanoma of skin, unspecified
    C44.311Basal cell carcinoma of skin of nose

    Showing 1–10 of 24

    Related Payer Policy Updates

    Specialty: Radiation Oncology1 / 2

    10 rows

    PolicyPayerEffective Date
    Radiation oncology coverage and treatment delivery guidelinesevicore2026-11-05
    Proton Beam Therapyuniversityofutahhealthplans2026-10-25
    Radiation and Oncologic ProceduresUnitedHealthcare2026-09-01
    Electronic Brachytherapy for Nonmelanoma Skin CancerBluecross Idaho2026-07-30
    Surface Radiation Therapy for Treatment of Non-Melanoma Skin Cancereocco2026-07-09
    Radiofrequency Ablation of Tumors Outside the LiverProvidence Health Plan2026-07-01
    Therapeutic Radiopharmaceuticals in Oncology (Lutathera, Pluvicto, Xofigo) Coverage CriteriaBlue Cross Blue Shield - North Carolina2026-07-01
    Intensity Modulated Radiation TherapyAmbetter Georgia2026-06-01
    Irreversible Electroporation (IRE) of Tumors Other Than LiverBlue Cross Blue Shield - Rhode Island2026-06-01
    Irreversible Electroporation (IRE) — NanoKnife (Preauthorization Required)Blue Cross Blue Shield - Nebraska2026-06-01

    Related Codes

    CPT-77300-RADIATION-THERAPY-DOSIMETRY

    CPT 77300: Radiation Dosimetry and Treatment Planning

    CPT-77301-INTENSITY-MODULATED-RADIOTHERAPY-IMRT-DELIVERY

    CPT 77301: Intensity-Modulated Radiotherapy (IMRT) Delivery

    CPT-77306-RADIATION-THERAPY-BEAM-ARRANGEMENT-DOSE-CALCULATION

    CPT 77306: Parallel Opposed External Beam Radiation Treatment Setup

    CPT-77307-RADIATION-THERAPY-ISODOSE-TANGENTIAL-PORT-PLANNING

    CPT 77307: Tangential Ports and Isodose Beam Arrangement for Radiation Therapy

    CPT-77316-BRACHYTHERAPY-SIMPLE-ISODOSE-PLANNING

    CPT 77316: Simple Level Isodose Planning for Brachytherapy

    CPT-77317-INTERMEDIATE-BRACHYTHERAPY-ISODOSE-PLANNING

    CPT 77317: Intermediate Isodose Planning for Brachytherapy

    CPT-77318-INTERMEDIATE-ISODOSE-BRACHYTHERAPY-PLANNING

    CPT 77318: Brachytherapy Isodose Planning, Intermediate

    CPT-77321-ELECTRON-SPECIAL-BEAM-PLANNING-RADIATION-ONCOLOGY

    CPT 77321: Radiation Therapy Planning — Special Beam Consideration

    CPT-77331-SPECIAL-DOSIMETRY-RADIATION-DOSE-CALCULATION

    CPT 77331: Special Dosimetry and Radiation Monitoring

    CPT-77333-RADIATION-THERAPY-INTERMEDIATE-DEVICE-DESIGN

    CPT 77333: Design/Construction of Intermediate Radiation Therapy Devices

    Showing 1–10 of 14

    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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