CPT® Code 86778

Official Description

Antibody; Toxoplasma, IgM

Common Language Description

The CPT® Code 86778 refers to a laboratory test specifically designed to identify the presence of IgM antibodies against Toxoplasma gondii, a parasitic organism. Toxoplasma gondii is known to infect various animals, and the infection can occur in humans primarily through the consumption of undercooked or raw meats from infected animals, as well as through exposure to the feces of infected cats. The condition known as toxoplasmosis is generally mild and may resolve without the need for treatment; however, it poses significant risks for certain populations. For instance, pregnant women can experience severe consequences, including the potential for blindness and brain damage in the fetus. Additionally, individuals with compromised immune systems may face life-threatening complications due to this infection. The testing for Toxoplasma antibodies is typically conducted using a blood sample, although cerebrospinal fluid (CSF) may also be analyzed in certain cases. The test associated with CPT® Code 86778 specifically focuses on the detection of IgM antibodies, which are indicative of a current or recent infection. This is in contrast to the test represented by CPT® Code 86777, which identifies total (IgG and IgM) or IgG antibodies through methods such as enzyme-linked immunosorbent assay (ELISA) or chemiluminescent immunoassay. The presence of IgG antibodies usually suggests a past infection, while the detection of IgM antibodies is critical for diagnosing an active infection, as they typically appear shortly after the onset of the infection and can help guide clinical decisions regarding treatment and management.

1. Indications

The CPT® Code 86778 is indicated for use in the following scenarios:

Diagnosis of Toxoplasmosis This test is performed to confirm a current or recent infection with Toxoplasma gondii, particularly in patients presenting with symptoms consistent with toxoplasmosis.
Pregnancy Monitoring Pregnant women may be tested to assess the risk of transmitting the infection to the fetus, as Toxoplasma infection can lead to severe complications such as congenital toxoplasmosis.
Immunocompromised Patients Individuals with weakened immune systems, such as those with HIV/AIDS or undergoing chemotherapy, may require testing to identify active infections that could lead to serious health issues.

2. Procedure

The procedure for conducting the test associated with CPT® Code 86778 involves several key steps:

Sample Collection A blood sample is typically drawn from the patient, although cerebrospinal fluid (CSF) may be collected if clinically indicated. The blood sample is usually obtained via venipuncture, where a needle is inserted into a vein to collect the necessary volume of blood for testing.
Laboratory Analysis The collected sample is then sent to a laboratory where it undergoes analysis. The specific method used for detecting IgM antibodies against Toxoplasma gondii is the chemiluminescent immunoassay. This technique utilizes light-emitting reactions to quantify the presence of IgM antibodies in the sample.
Result Interpretation After the analysis is complete, the laboratory will interpret the results. A positive result indicates the presence of IgM antibodies, suggesting a current or recent infection with Toxoplasma gondii. Conversely, a negative result may indicate the absence of an active infection, although further testing may be warranted based on clinical judgment.

3. Post-Procedure

Post-procedure care for patients undergoing testing with CPT® Code 86778 is generally minimal. Patients may experience slight discomfort or bruising at the site of blood collection, which typically resolves quickly. It is important for healthcare providers to communicate the significance of the test results to the patient, especially in cases where a positive result may indicate a need for further evaluation or treatment. Follow-up appointments may be necessary to discuss the results and any potential implications for the patient's health, particularly for pregnant women or immunocompromised individuals who may require additional monitoring or intervention.

Short Descr	TOXOPLASMA ANTIBODY IGM
Medium Descr	ANTIBODY TOXOPLASMA IGM
Long Descr	Antibody; Toxoplasma, IgM
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	2
CCS Clinical Classification	235 - Other Laboratory

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.
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.
GA	Waiver of liability statement issued as required by payer policy, individual case
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