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Code deleted, see 78012-78014

Official Description

Thyroid uptake; multiple determinations

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 78001 refers to a diagnostic procedure known as thyroid uptake, specifically involving multiple determinations. This procedure is utilized to assess the functionality of the thyroid gland by measuring the absorption of radioactive iodine isotopes. During the test, a physician administers a radioactive iodine isotope into the patient's body, which is then absorbed by the thyroid gland located in the neck. The primary purpose of this procedure is to evaluate how effectively the thyroid gland is taking up iodine, which is crucial for the production of thyroid hormones. By making multiple determinations, the physician can gather comprehensive data on the rate of iodine absorption over a specified period. This information is vital for diagnosing various thyroid conditions, including hyperthyroidism or hypothyroidism. It is important to note that if the test is conducted after the administration of a hormone intended to enhance iodine uptake, a different code, CPT® 78003, should be used instead. This distinction is essential for accurate medical coding and billing practices.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 78001 is indicated for various clinical scenarios where assessment of thyroid function is necessary. The following conditions may warrant the use of this procedure:

  • Hyperthyroidism - A condition characterized by an overactive thyroid gland, leading to excessive production of thyroid hormones.
  • Hypothyroidism - A condition where the thyroid gland is underactive, resulting in insufficient hormone production.
  • Thyroid nodules - Abnormal growths within the thyroid that may require evaluation to determine their nature and function.
  • Thyroid cancer - Assessment of thyroid function may be necessary in the context of cancer diagnosis and management.

2. Procedure

The procedure for CPT® Code 78001 involves several key steps to ensure accurate measurement of thyroid iodine uptake. The following outlines the procedural steps:

  • Step 1: Patient Preparation - Prior to the procedure, the patient may be instructed to avoid certain medications or foods that could interfere with iodine absorption. This preparation is crucial for obtaining reliable results.
  • Step 2: Administration of Radioactive Iodine - The physician administers a specific dose of radioactive iodine isotopes to the patient, typically via oral ingestion or injection. This isotope will be absorbed by the thyroid gland.
  • Step 3: Initial Measurement - After a predetermined period, the first measurement of iodine uptake is taken using a gamma camera or similar imaging device. This initial reading provides a baseline for further assessments.
  • Step 4: Multiple Determinations - The physician conducts additional measurements at specified intervals to monitor the rate of iodine absorption over time. These multiple determinations are essential for evaluating the thyroid's functional status.
  • Step 5: Data Analysis - The collected data from the multiple determinations are analyzed to assess the thyroid's ability to uptake iodine, which aids in diagnosing potential thyroid disorders.

3. Post-Procedure

After the completion of the thyroid uptake procedure coded under CPT® 78001, the patient may be monitored for any immediate reactions to the radioactive iodine. It is generally advised that patients hydrate adequately to help flush the radioactive material from their system. The physician will review the results of the iodine uptake measurements and discuss any necessary follow-up actions or treatments based on the findings. Patients may also be informed about any precautions to take following the procedure, particularly regarding exposure to others, especially vulnerable populations such as pregnant women and young children.

Short Descr THYROID MULTIPLE UPTAKES
Medium Descr THYROID UPTAKE MULTIPLE DETERMINATIONS
Long Descr Thyroid uptake; multiple determinations
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
2011-01-01 Changed Short description changed.
Pre-1990 Added Code added.
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Description
Code
Description
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