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Official Description

Ceruloplasmin

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 82390 refers to the measurement of ceruloplasmin levels in the blood. Ceruloplasmin is a crucial protein that plays a significant role in the transport of copper molecules throughout the bloodstream and is also involved in iron metabolism. This test is particularly important in the diagnostic process for conditions such as Wilson disease, a genetic disorder that leads to excessive copper accumulation in the body, and copper deficiency, which can result in various health issues. The ceruloplasmin test is typically ordered alongside other blood and urine tests that assess copper levels to provide a comprehensive evaluation of a patient's copper metabolism. To perform this test, a blood sample is collected through a procedure known as venipuncture, which is separately reportable. The analysis of the serum or plasma is conducted using a method called quantitative immunoturbidimetry, which allows for precise measurement of ceruloplasmin concentrations in the sample.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The ceruloplasmin test (CPT® Code 82390) is indicated for the following conditions:

  • Wilson Disease This genetic disorder is characterized by excessive accumulation of copper in the body, leading to various organ damage. The ceruloplasmin test helps in diagnosing this condition by measuring the levels of ceruloplasmin, which are typically low in affected individuals.
  • Copper Deficiency This condition occurs when the body does not have enough copper, which can lead to anemia and other health issues. The ceruloplasmin test is used to assess copper metabolism and determine if a deficiency is present.

2. Procedure

The procedure for measuring ceruloplasmin levels involves several key steps:

  • Step 1: Patient Preparation Prior to the blood draw, the patient may be instructed to fast or avoid certain medications that could affect test results. It is essential to follow any specific instructions provided by the healthcare provider to ensure accurate results.
  • Step 2: Venipuncture A qualified healthcare professional performs venipuncture to obtain a blood sample. This involves inserting a needle into a vein, typically in the arm, to draw blood into a collection tube. The procedure is performed using sterile techniques to minimize the risk of infection.
  • Step 3: Sample Handling Once the blood sample is collected, it is processed to separate the serum or plasma from the cellular components. This step is crucial as the ceruloplasmin levels are measured in the serum or plasma portion of the blood.
  • Step 4: Laboratory Analysis The serum or plasma is then subjected to quantitative immunoturbidimetry, a laboratory technique that measures the concentration of ceruloplasmin in the sample. This method involves the use of antibodies that specifically bind to ceruloplasmin, allowing for accurate quantification.

3. Post-Procedure

After the blood sample has been collected, the patient may experience minor discomfort or bruising at the venipuncture site, which typically resolves quickly. There are generally no specific post-procedure care instructions required for the ceruloplasmin test. However, patients should be advised to report any unusual symptoms or prolonged discomfort to their healthcare provider. The results of the ceruloplasmin test will be interpreted in conjunction with other tests and clinical findings to provide a comprehensive assessment of the patient's copper metabolism and related health conditions.

Short Descr ASSAY OF CERULOPLASMIN
Medium Descr CERULOPLASMIN
Long Descr Ceruloplasmin
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 09 - 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
CLIA Waived (QW) No
APC Status Indicator Conditionally packaged laboratory tests
Type of Service (TOS) 5 - Diagnostic Laboratory
Berenson-Eggers TOS (BETOS) T1H - Lab tests - other (non-Medicare fee schedule)
MUE 1
CCS Clinical Classification 233 - Laboratory - Chemistry and Hematology
90 Reference (outside) laboratory: when laboratory procedures are performed by a party other than the treating or reporting physician or other qualified health care professional, the procedure may be identified by adding modifier 90 to the usual procedure number.
GZ Item or service expected to be denied as not reasonable and necessary
26 Professional component: certain procedures are a combination of a physician or other qualified health care professional component and a technical component. when the physician or other qualified health care professional component is reported separately, the service may be identified by adding modifier 26 to the usual procedure number.
59 Distinct procedural service: under certain circumstances, it may be necessary to indicate that a procedure or service was distinct or independent from other non-e/m services performed on the same day. modifier 59 is used to identify procedures/services, other than e/m services, that are not normally reported together, but are appropriate under the circumstances. documentation must support a different session, different procedure or surgery, different site or organ system, separate incision/excision, separate lesion, or separate injury (or area of injury in extensive injuries) not ordinarily encountered or performed on the same day by the same individual. however, when another already established modifier is appropriate it should be used rather than modifier 59. only if no more descriptive modifier is available, and the use of modifier 59 best explains the circumstances, should modifier 59 be used. note: modifier 59 should not be appended to an e/m service. to report a separate and distinct e/m service with a non-e/m service performed on the same date, see modifier 25.
91 Repeat clinical diagnostic laboratory test: in the course of treatment of the patient, it may be necessary to repeat the same laboratory test on the same day to obtain subsequent (multiple) test results. under these circumstances, the laboratory test performed can be identified by its usual procedure number and the addition of modifier 91. note: this modifier may not be used when tests are rerun to confirm initial results; due to testing problems with specimens or equipment; or for any other reason when a normal, one-time, reportable result is all that is required. this modifier may not be used when other code(s) describe a series of test results (eg, glucose tolerance tests, evocative/suppression testing). this modifier may only be used for laboratory test(s) performed more than once on the same day on the same patient.
95 Synchronous telemedicine service rendered via a real-time interactive audio and video telecommunications system: synchronous telemedicine service is defined as a real-time interaction between a physician or other qualified health care professional and a patient who is located at a distant site from the physician or other qualified health care professional. the totality of the communication of information exchanged between the physician or other qualified health care professional and the patient during the course of the synchronous telemedicine service must be of an amount and nature that would be sufficient to meet the key components and/or requirements of the same service when rendered via a face-to-face interaction. modifier 95 may only be appended to the services listed in appendix p. appendix p is the list of cpt codes for services that are typically performed face-to-face, but may be rendered via a real-time (synchronous) interactive audio and video telecommunications system.
GA Waiver of liability statement issued as required by payer policy, individual case
GW Service not related to the hospice patient's terminal condition
GY Item or service statutorily excluded, does not meet the definition of any medicare benefit or, for non-medicare insurers, is not a contract benefit
Q1 Routine clinical service provided in a clinical research study that is in an approved clinical research study
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Pre-1990 Added Code added.
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