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Code deleted, see 78012-78014

Official Description

Thyroid uptake; stimulation, suppression or discharge (not including initial uptake studies)

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 78003 refers to a specific diagnostic procedure known as thyroid uptake, which involves the assessment of the thyroid gland's ability to absorb radioactive iodine isotopes. This procedure is crucial for evaluating thyroid function and is performed under specific conditions. During the test, a physician administers radioactive iodine isotopes into the patient's body, allowing for the measurement of iodine absorption by the thyroid gland located in the neck. The primary focus of this code is on the stimulation, suppression, or discharge of the thyroid gland, excluding initial uptake studies. It is important to note that this code is applicable when the test is conducted after the patient has been injected with a hormone designed to enhance the uptake of iodine, provided that the thyroid is functioning normally. In contrast, if multiple determinations of iodine absorption are made over time, a different code, CPT® 78001, should be utilized. This distinction is essential for accurate medical coding and billing, ensuring that the procedure is documented correctly for reimbursement and compliance purposes.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 78003 is indicated for various clinical scenarios where assessment of thyroid function is necessary. The following conditions may warrant the use of this procedure:

  • Thyroid Dysfunction - Patients exhibiting symptoms of hyperthyroidism or hypothyroidism may require this test to evaluate thyroid activity.
  • Thyroid Nodules - The presence of nodules may necessitate further investigation to determine their functional status and potential malignancy.
  • Thyroid Cancer Monitoring - This procedure can be part of the follow-up care for patients with a history of thyroid cancer to assess residual or recurrent disease.
  • Evaluation of Goiter - Patients with an enlarged thyroid gland (goiter) may undergo this test to understand the underlying functional status of the thyroid.

2. Procedure

The procedure for CPT® Code 78003 involves several key steps to ensure accurate assessment of thyroid uptake. The following outlines the procedural steps:

  • Step 1: Patient Preparation - Prior to the procedure, the patient may need to undergo specific preparations, such as discontinuing certain medications that could affect thyroid function or iodine uptake. The physician will provide instructions tailored to the patient's individual health status.
  • Step 2: Administration of Radioactive Iodine - The physician introduces a predetermined dose of radioactive iodine isotopes into the patient's body, typically via oral or intravenous administration. This isotope serves as a tracer to evaluate the thyroid's ability to absorb iodine.
  • Step 3: Hormonal Stimulation - Following the administration of radioactive iodine, the patient is injected with a hormone that stimulates the thyroid gland. This step is crucial as it enhances the uptake of iodine, allowing for a more accurate assessment of thyroid function.
  • Step 4: Measurement of Uptake - After a specified period, the physician measures the amount of radioactive iodine absorbed by the thyroid gland. This measurement is typically conducted using a gamma camera or similar imaging technology to quantify the uptake accurately.

3. Post-Procedure

After the completion of the procedure associated with CPT® Code 78003, patients may be monitored for any immediate reactions to the radioactive iodine. It is essential to provide post-procedure care instructions, which may include hydration recommendations to help flush the radioactive material from the body. Patients are typically advised to avoid close contact with others, especially pregnant women and young children, for a specified period to minimize radiation exposure. Follow-up appointments may be scheduled to discuss the results of the uptake study and any further diagnostic or therapeutic steps that may be necessary based on the findings.

Short Descr THYROID SUPPRESS/STIMUL
Medium Descr THYROID SUPPRESS/STIMUL
Long Descr Thyroid uptake; stimulation, suppression or discharge (not including initial uptake studies)
Status Code Active Code
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 1 - Diagnostic Tests for Radiology Services
Multiple Procedures (51) 0 - No payment adjustment rules for multiple procedures apply.
Bilateral Surgery (50) 0 - 150% payment adjustment for bilateral procedures does NOT apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 0 - Payment restriction for assistants at surgery applies to this procedure...
Co-Surgeons (62) 0 - Co-surgeons not permitted for this procedure.
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Discontinued Code
Type of Service (TOS) 4 - Diagnostic Radiology
Berenson-Eggers TOS (BETOS) none
MUE Not applicable/unspecified.
CCS Clinical Classification 209 - Radioisotope scan and function studies
Date
Action
Notes
2013-01-01 Deleted Code deleted, see 78012-78014
2013-01-01 Changed Short and Medium Descriptors changed.
Pre-1990 Added Code added.
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Description
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