Hi everyone! We have a question concerning 88360 vs 88342 for ER/PR – This particular case was coded as an 88360 for both even though technically PR didn’t have a percentage given. The pathologist reasoning was that "negative" generally means 0%. Is this correct and we can leave as an 88360 even though a percentage wasn’t given or should we definitely have to have "0%" in there for it to pass?

ESTROGEN RECEPTOR: Positive. 5% of tumor cell nuclei are positive (weak).
PROGESTERONE RECEPTOR: Negative; internal controls present and appropriate.