Need help choosing the right code?
Ask CasePilot about procedures, modifiers, bundling, and coding guidance.
Try CasePilot© Copyright 2026 American Medical Association. All rights reserved.
The CPT® Code 82003 refers to a laboratory test specifically designed to measure the levels of acetaminophen in the blood. Acetaminophen, commonly known by the brand name Tylenol, is classified as an analgesic and antipyretic medication, which means it is used to alleviate mild to moderate pain and reduce fever. This medication can be administered in various forms, including orally in tablet or liquid form, or via rectal suppository. While acetaminophen is generally safe when used as directed, excessive intake can lead to serious health complications, including toxic hepatitis, a condition that can cause liver damage. Therefore, monitoring blood levels of acetaminophen becomes critical in cases of suspected overdose or when patients exhibit signs and symptoms of toxicity. The testing process involves obtaining a blood sample through a procedure known as venipuncture, which is reported separately. Following the collection of the blood sample, the serum is analyzed using a method called spectrophotometry, which allows for accurate measurement of acetaminophen concentration in the bloodstream. Regular monitoring of acetaminophen levels is typically conducted every 4 to 6 hours, with particular attention given to critical values that are noted at 4 and 12 hours post-ingestion to ensure patient safety and appropriate medical intervention.
© Copyright 2026 Coding Ahead. All rights reserved.
The acetaminophen blood test (CPT® Code 82003) is indicated for several specific clinical scenarios, particularly when there is a concern regarding acetaminophen overdose or toxicity. The following conditions warrant the performance of this test:
The procedure for measuring acetaminophen levels in the blood involves several key steps that ensure accurate results. The following outlines the procedural steps involved:
After the blood sample has been collected and analyzed, the patient may be monitored for any immediate reactions to the venipuncture, such as bleeding or discomfort at the site. Depending on the results of the acetaminophen level test, further medical intervention may be required, especially if toxic levels are detected. Patients may need to be observed for signs of liver damage or other complications associated with acetaminophen toxicity. Follow-up care may include additional blood tests, supportive treatment, or referral to a specialist if necessary. It is essential for healthcare providers to communicate the results to the patient and discuss any required next steps based on the findings.
| Short Descr | ASSAY OF ACETAMINOPHEN | Medium Descr | ASSAY OF ACETAMINOPHEN | Long Descr | Acetaminophen | Status Code | Statutory Exclusion (from MPFS, may be paid under other methodologies) | Global Days | XXX - Global Concept Does Not Apply | PC/TC Indicator (26, TC) | 9 - Not Applicable | Multiple Procedures (51) | 9 - Concept does not apply. | Bilateral Surgery (50) | 9 - Concept does not apply. | Physician Supervisions | 9 - Concept does not apply. | Assistant Surgeon (80, 82) | 9 - Concept does not apply. | Co-Surgeons (62) | 9 - Concept does not apply. | Team Surgery (66) | 9 - Concept does not apply. | Diagnostic Imaging Family | 99 - Concept Does Not Apply | APC Status Indicator | Items and Services Packaged into APC Rates | Type of Service (TOS) | 5 - Diagnostic Laboratory | Berenson-Eggers TOS (BETOS) | T1H - Lab tests - other (non-Medicare fee schedule) | MUE | Not applicable/unspecified. | CCS Clinical Classification | 206 - Microscopic examination (bacterial smear, culture, toxicology) |
Get instant expert-level medical coding assistance.