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    v1.0.30
    OpenPayerBilling CodesDiagnostic Nuclear Medicine Procedures on the Endocrine SystemCPT cpt-78015-thyroid-scan-nuclear-medicine
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    CPT 78015: Thyroid Scan, Nuclear Medicine

    Medicare pays $142 on average nationally for this procedure.

    CPT code 78015 describes a thyroid scan, a nuclear medicine imaging study using a radionuclide to evaluate thyroid function and detect thyroid nodules or to perform a whole-body survey for metastatic thyroid cancer; the service is a nuclear medicine diagnostic scan typically performed in an outpatient imaging center, hospital radiology/nuclear medicine department, or specialized thyroid clinic and involves administration of a radiotracer followed by gamma camera imaging to assess uptake and distribution within the thyroid and, when indicated, other body regions.

    For related coverage guidance, see recent payer policy updates: Diabetic Supplies, Radiofrequency Ablation for Thyroid Nodules, Continuous Glucose Monitoring and Insulin Delivery for Managing Diabetes (for Idaho Only).

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    Clinical & Coding Specifications

    Clinical Context

    A typical patient is a 45–70 year-old presenting with a palpable thyroid nodule, abnormal thyroid function tests, or follow-up after thyroid cancer treatment. The physician orders a nuclear medicine thyroid scan using a radionuclide (commonly technetium-99m pertechnetate or I-123) to evaluate thyroid uptake, distinguish “hot” versus “cold” nodules, assess diffuse uptake in Graves’ disease, or perform whole-body imaging in post-thyroidectomy patients to detect metastatic thyroid cancer. The clinical workflow includes: referral from endocrinology or primary care; pre-procedure medication review (e.g., recent iodine or thyroid hormone use); radiopharmacy preparation and administration of radiotracer; patient positioning in the nuclear medicine department or outpatient imaging center; planar and/or SPECT acquisition of the thyroid (and whole body when indicated); image processing and interpretation by a nuclear medicine physician or radiologist; and delivery of a written report to the referring clinician. Typical sites of service are hospital-based outpatient imaging departments, freestanding imaging centers, and ambulatory nuclear medicine suites. Imaging may be performed with or without additional lab testing such as serum TSH or thyroglobulin depending on the indication.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    78014Thyroid uptake, single quantitativePerformed when a quantitative uptake measurement is needed in conjunction with or instead of imaging.
    78800Radiopharmaceutical therapy administrationRelated when therapeutic radioiodine treatment follows diagnostic scanning in thyroid cancer or hyperthyroidism.
    78803PET imaging, whole body, single metabolic evaluation (Note: PET generally not used for routine thyroid scan)Occasionally used for differentiated or dedifferentiated thyroid cancers when FDG PET is indicated.
    84436Thyroid stimulating hormone (TSH) assayOften ordered before imaging to correlate function with scan appearance.
    78016Thyroid imaging, single-photon emission tomography (SPECT) (if available) (Note: 78016 may represent SPECT thyroid)Performed when 3D localization of nodules is required, adjunct to planar 78015.

    Related Modifiers

    8 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…
    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…
    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…
    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…
    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 Code
    207P00000X
    363A00000X
    363LP2300X
    163WD1100X
    152WP0200X
    2086P0122X
    261QR1100X
    315P00000X

    Related ICD-10-CM Codes

    26 rows

    ICD-10-CM CodeDescription
    C73Malignant neoplasm of thyroid gland
    D34Benign neoplasm of thyroid gland
    D44.0Neoplasm of uncertain behavior of thyroid gland
    D44.2Neoplasm of uncertain behavior of parathyroid gland
    E01.0Iodine-deficiency related diffuse (endemic) goiter
    E01.1Iodine-deficiency related multinodular (endemic) goiter
    E01.2Iodine-deficiency related (endemic) goiter, unspecified
    E03.9Hypothyroidism, unspecified
    E04.0Nontoxic diffuse goiter
    E04.1Nontoxic single thyroid nodule

    Showing 1–10 of 26

    Related Payer Policy Updates

    Specialty: Endocrinology1 / 3

    10 rows

    PolicyPayerEffective Date
    Diabetic SuppliesCigna2026-10-15
    Radiofrequency Ablation for Thyroid NodulesCigna2026-10-15
    Continuous Glucose Monitoring and Insulin Delivery for Managing Diabetes (for Idaho Only)UnitedHealthcare2026-10-01
    Tzield (teplizumab-mzwv) CoverageUnitedHealthcare2026-10-01
    Continuous Glucose Monitoring and Insulin Delivery for Managing Diabetes (for Indiana Only)UnitedHealthcare2026-10-01
    Medical Necessity Guidelines Insulin PumpsMass General Brigham Health Plan2026-10-01
    Medical Necessity Guidelines: Continuous Glucose MonitorsMass General Brigham Health Plan2026-10-01
    Continuous Glucose MonitoringAmbetter Nevada2026-10-01
    Salivary Hormone TestingOscar Health2026-10-01
    Bone Turnover Markers TestingOscar Health2026-10-01

    Related Codes

    CPT-78012-THYROID-RADIOIODINE-UPTAKE-STUDY

    CPT 78012: Radioiodine Thyroid Uptake, 4–24 Hour

    CPT-78013-THYROID-RADIOIODINE-IMAGING-UPTAKE

    CPT 78013: Thyroid Scintigraphy with Radioiodine Imaging

    CPT-78014-THYROID-RADIOIODINE-UPTAKE-IMAGING

    CPT 78014: Thyroid Radioiodine Uptake and Imaging

    CPT-78016-THYROID-SCAN-NUCLEAR-MEDICINE-IMAGING

    CPT 78016: Thyroid Scan, Nuclear Medicine

    CPT-78018-THYROID-SCAN-NUCLEAR-MEDICINE-IMAGING

    CPT 78018: Thyroid Scan, Radionuclide Imaging

    CPT-78020-THYROID-SCAN-NUCLEAR-MEDICINE

    CPT 78020: Thyroid Scan, Nuclear Medicine

    CPT-78070-PARATHYROID-DUAL-TRACER-IMAGING-SUBTRACTION-STUDY

    CPT 78070: Parathyroid Imaging with Dual Tracer/Subtraction

    CPT-78071-SPECT-PARATHYROID-IMAGING-DUAL-TRACER

    CPT 78071: SPECT Parathyroid Imaging with Planar/Subtraction Study

    CPT-78072-PARATHYROID-NUCLEAR-MEDICINE-SPECT-CT-LOCALIZATION

    CPT 78072: Parathyroid Nuclear Medicine Imaging with SPECT/CT

    CPT-78075-FUNCTIONAL-ADRENAL-NUCLEAR-IMAGING

    CPT 78075: Functional Adrenal Imaging with Radiotracer

    Showing 1–10 of 11

    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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