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Official Description

Antibody; respiratory syncytial virus

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 86756 refers to a laboratory test specifically designed to measure antibodies against the respiratory syncytial virus (RSV). RSV is a common virus that primarily affects the respiratory system and is known to circulate in the United States predominantly from late fall through spring. The illness caused by RSV is characterized by symptoms such as a runny nose, nasal congestion, and a persistent cough. While RSV can lead to mild respiratory symptoms in healthy individuals, it can be particularly severe in infants, potentially resulting in serious conditions such as bronchitis and pneumonia. The presence of IgG and IgM antibodies in the blood, as indicated by a positive antibody titer, can suggest either a current or past infection with RSV. To perform this test, a blood sample is collected through a procedure known as venipuncture, which is reported separately. The serum obtained from the blood sample is then analyzed using a technique called immunofluorescence, which allows for the detection of RSV antibodies in the serum.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The antibody test for respiratory syncytial virus (RSV) is indicated for the following conditions:

  • Diagnosis of RSV Infection This test is performed to confirm the presence of RSV antibodies in patients exhibiting symptoms consistent with RSV infection, such as runny nose, congestion, and cough.
  • Assessment of Severity It is particularly useful in evaluating the severity of RSV-related illnesses in infants, who are at higher risk for complications like bronchitis and pneumonia.
  • Monitoring Past Infections The test can also be utilized to determine if a patient has had a past infection with RSV, as indicated by the presence of IgG antibodies.

2. Procedure

The procedure for conducting the antibody test for respiratory syncytial virus (RSV) involves several key steps:

  • Step 1: Patient Preparation Prior to the test, the patient may be asked to provide a medical history and describe any symptoms they are experiencing. This information helps the healthcare provider determine the necessity of the test.
  • Step 2: Venipuncture A qualified healthcare professional performs a venipuncture, which is the process of puncturing a vein to obtain a blood sample. This is typically done in the arm using a sterile needle and requires proper technique to minimize discomfort and ensure sample integrity.
  • Step 3: Sample Collection Once the blood is drawn, it is collected into a designated container, usually a serum separator tube, which allows for the separation of serum from the blood cells after centrifugation.
  • Step 4: Serum Testing The collected serum is then subjected to immunofluorescence testing. This laboratory technique involves using fluorescently labeled antibodies that bind specifically to RSV antibodies present in the serum, allowing for their detection and quantification.

3. Post-Procedure

After the procedure, the patient may experience minimal discomfort at the venipuncture site, which typically resolves quickly. There are no specific post-procedure care instructions required for this test, but patients are generally advised to keep the site clean and dry. The results of the antibody test will be analyzed and reported, indicating the presence of RSV antibodies, which can help guide further clinical decisions regarding treatment and management of the patient's condition.

Short Descr RESPIRATORY VIRUS ANTIBODY
Medium Descr ANTIBODY RESPIRATORY SYNCTIAL VIRUS
Long Descr Antibody; respiratory syncytial virus
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.
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.
GA Waiver of liability statement issued as required by payer policy, individual case
QW Clia waived test
Date
Action
Notes
1993-01-01 Added First appearance in code book in 1993.
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Description
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