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The CPT® Code 86674 refers to a laboratory test specifically designed to measure antibodies against Giardia lamblia, a microscopic parasite that is prevalent globally in various environments, including soil, food, and water. This parasite is primarily transmitted through fecal contamination from infected humans and animals. The presence of Giardia lamblia can lead to an intestinal infection, which is clinically characterized by symptoms such as abdominal cramps, bloating, diarrhea, and significant weight loss if the infection persists. The test measures different types of antibodies, including IgM, IgG, and IgA, which are crucial for diagnosing the infection. Elevated levels of IgM antibodies or a significant increase (four-fold rise) in IgG or IgA antibody titers between acute and convalescent serum samples indicate a recent or ongoing giardia infection. Conversely, a positive IgG or IgA antibody titer without detectable IgM antibodies typically suggests a past infection. To perform this test, a blood sample is collected through a procedure known as venipuncture, which is separately reportable. The serum obtained from the blood sample is then analyzed using a semi-quantitative enzyme-linked immunosorbent assay (ELISA) to detect the presence of these antibodies.
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The antibody test for Giardia lamblia (CPT® Code 86674) is indicated for the following conditions:
The procedure for testing antibodies against Giardia lamblia involves several key steps:
After the procedure, patients may experience minor discomfort or bruising at the venipuncture site, which typically resolves quickly. There are no specific post-procedure care instructions provided in the CPT® data. However, it is generally advisable for patients to hydrate adequately and monitor for any unusual symptoms. The results of the antibody test will be interpreted by a healthcare professional, who will consider the patient's clinical history and symptoms to determine the appropriate course of action based on the findings.
| Short Descr | GIARDIA LAMBLIA ANTIBODY | Medium Descr | ANTIBODY GIARDIA LAMBLIA | Long Descr | Antibody; Giardia lamblia | 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 | 3 | 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. | 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. |
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| 2004-01-01 | Changed | Code description changed. |
| 1993-01-01 | Added | First appearance in code book in 1993. |
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