1. Procedure and CPT® Code Selection:

The obstetric panel ordered includes the following tests: syphilis screening (non-treponemal), automated CBC with manual differential WBC count, HBsAg, rubella antibody, serum antibody screen, and ABO/Rh blood typing.

CPT® Code 80055 is for a comprehensive obstetric panel that includes all these components. This code is intended to report the entire panel of tests as a bundled service rather than itemizing each individual test.

2. Rationale for Excluding Other Options:

Option B lists the individual component codes for each test in the obstetric panel (e.g., 85027, 85007, 87340, etc.), but using 80055 is more appropriate because it provides a single code to report the full obstetric panel and follows CPT® bundling guidelines.

Option C also lists the individual tests separately, which is unnecessary when 80055 includes all these components.

Option D lists 80081, which is for an obstetric panel that includes HIV testing. Since HIV testing is not part of the tests described in this scenario, 80081 is incorrect.

3. AAPC and CPT® Coding Guidelines:

AAPC guidelines recommend using the single code 80055 when all components of an obstetric panel are ordered together, as itemizing each test individually is not necessary.

Therefore, the correct answer is A. 80055.