2025 CPT code 86704
(Active) Effective Date: N/A Revision Date: N/A Pathology and Laboratory Procedures - Qualitative or Semiquantitative Immunoassays Immunology Procedures Feed
This code represents a total Hepatitis B core antibody (HBcAb) immunoassay, detecting all immunoglobulin types in a serum sample.
Modifiers may apply depending on the context and payer-specific requirements (e.g., modifier 90 for outside laboratory services, modifier 91 for repeat tests). Consult the payer's guidelines.
Medical necessity is established by the physician based on the patient's clinical presentation, risk factors (e.g., exposure to infected blood, high-risk behaviors), and other diagnostic findings.
A laboratory analyst performs the technical aspects of the immunoassay, including specimen preparation, incubation, detection, and result interpretation. A physician orders the test based on patient history and clinical presentation.
In simple words: This lab test checks your blood for total hepatitis B core antibodies.It looks for all types of antibodies that your body might make to fight off the hepatitis B virus. The results show if you've been exposed to the virus.
CPT code 86704 signifies the performance of a qualitative or semiquantitative immunoassay to analyze a patient's serum specimen for the presence of total hepatitis B core antibodies (HBcAb).The assay detects all immunoglobulin classes (IgG and IgM) of HBcAb.The procedure involves steps such as reacting the specimen with test antigens, incubation, the addition of a detection agent (e.g., stain, fluorescent marker), and interpretation of results (positive, negative, or semiquantitative value). This test aids in the diagnosis of hepatitis B infection.
Example 1: A patient presents with symptoms suggestive of hepatitis B (fatigue, jaundice, dark urine). The physician orders this test to determine if the patient has been infected with hepatitis B., A healthcare worker is exposed to potentially infectious blood. The physician orders this test as part of post-exposure prophylaxis to evaluate the worker's immune response to the hepatitis B virus., A patient with a history of intravenous drug use undergoes routine testing for infectious diseases, including hepatitis B. This test is included as part of their panel to detect past or present infection.
Physician order specifying the test, patient demographics, date and time of collection, results of the immunoassay (qualitative or semiquantitative), and any relevant clinical notes.
** This test is often used in conjunction with other hepatitis B markers (surface antigen, surface antibody, IgM core antibody) to determine the stage of infection and the patient's immune status.The interpretation of the results requires correlation with the patient's clinical picture and other relevant laboratory findings.
- Revenue Code: T1H (LAB TESTS - OTHER (NON-MEDICARE FEE SCHEDULE))
- RVU: Information not available in provided sources.Consult AMA CPT codebook or other relevant resources for RVU data.
- Global Days : Not applicable. This is a laboratory test, not a surgical procedure.
- Payment Status: Active
- Modifier TC rule: Not applicable for this laboratory test.
- Fee Schedule : Information not available in provided sources.Consult historical fee schedules from relevant payers.
- Specialties:Infectious Disease, Gastroenterology, Hepatology, Clinical Pathology
- Place of Service:Office, Hospital (Inpatient or Outpatient), Clinical Laboratory