CPC domain - 18% of the exam

Radiology, Pathology and Laboratory, and Medicine

Radiology, Pathology and Laboratory, and Medicine is 18% of the AAPC Certified Professional Coder (CPC) exam. These are the objectives it covers, each with practice questions and worked explanations.

Objectives in this domain

Sample question from this domain

Free sampleRadiology, Pathology and Laboratory, and Medicinemedium

A 45-year-old established patient attends for a seasonal influenza vaccine. The nurse administers a single quadrivalent split-virus preservative-free 0.5 mL dose by intramuscular injection into the deltoid (CPT 90686, influenza vaccine product). No physician counselling is documented and the patient is an adult. How is the encounter reported?

90686  influenza vaccine, quadrivalent, split virus, IM
90471  immunisation administration, first vaccine (no counselling)
90460  immunisation administration with counselling, patient through 18 years
  • A90686 alone for the vaccine product, with no separate administration code reported
  • B90686 for the vaccine product together with 90460 for the injection administration
  • C90471 alone for the administration, with the vaccine product bundled into that code
  • D90686 for the vaccine product together with 90471 for the injection administration Correct
Report a vaccine as two codes: the product code plus an administration code matched to the route and whether counselling occurred. CPT Medicine immunisation rules require two charges for a vaccine given without physician counselling: the product code for the substance supplied and an administration code from the 90471 series for the act of injecting it.

Why A is wrong: Tempting because the product code seems to describe the whole visit, but CPT lists administration separately, so the product alone omits the billable injection work.

Why B is wrong: Tempting because 90460 is an administration code, but it applies only to patients through 18 years when the physician counsels, so it is wrong for a 45-year-old without counselling.

Why C is wrong: Tempting because 90471 does report the injection, but the vaccine product is never bundled into an administration code, so the supply 90686 must also be reported.

Why D is correct: Correct: the product 90686 reports the vaccine supplied, and 90471 reports the intramuscular administration of a single vaccine when no age-appropriate counselling is documented.

Other domains in this exam

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