CPT 87804 a&b

how do we code 87804 A&B, with modifier(s), diagnosis codes?

A and B

When testing for both influenza A and B, using one sample, one device, either single or separate analytical chamber and yielding two results (A & B), code 87804 would be reported twice. The code is reported once for each test result, even if only one kit was used. Certain payers may require modifier 59 to indicate the test was distinct and separate, while some payers may prefer units on the claim form. If other forms of rapid testing are used and lead to only one result or are non-differentiating, CPT 87804 would be reported only once. Modifier QW may be required by Medicare as well.

diagnosis depends on documentation. Symptoms or a definitive diagnosed condition.

bill it

87804QW with 2 units (if your rapid test reports both A & B) and link to the diagnosis your doctor gives you- fever, influenza, sore throat etc.