Hi
necruz
I somewhat disagree that the ER/PR/HER2/Ki-67 can also be billed as IHC stains. Please let me explain.
If the ER and PR performed are quantitative (as stated above) - you will bill 88360. (Just so everyone knows the ER and PR can be performed as an IHC and not just quantification).
HER2 and Ki-67 are quantitative both being billed with 88360.
Ki-67 is quantitative even if the number is zero. It will state something like <0 (which is still a quantitative percentage; there however was nothing to find). Bill it 88360.
(HER2 is not IHC) - HER2 can be quantitative (88360); and if the test is "equivocal" a FISH "reflex" may be ordered billing 88377.
The other stains mentioned above - the E-cadherin you will bill with 88342 with XU modifier, p40 bill with 88341 with XU modifier, p63 bill with 88341 with XU modifier, and any other IHC stains performed bill with 88341 with XU modifier. Please make sure your pathologist's is stating why these tests are performed in either the microscopic area or the IHC table to "rule out, rule in, validate xxxxx, confirm xxxxx, etc..." if you are ever faced with a denial. These IHCs are used to differentiate on the kind of cancer the patient may have and any invasions. This is useful information for the treatment plan for the patient - lumpectomy, mastectomy, radiation, chemotherapy (what type/for how long). If we don't know exactly what type of cancer the patient has it becomes difficult to come up with an effective treatment plan for curative care.
Please reach out with any additional questions and have a great evening.
Thank you for listening,
Dana