A330 AIRBUS FLC OVERSHOT INTERMEDIATE ARR FIX DUE TO MISINTERP OF THEIR CLRNC DURING A MEDICAL PAX EMER.

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ON ARR TO PHL; ON MAZIE 1 ARR; WERE CLRED TO CROSS D15 DNY INTXN AT FL190. WE EXPECTED TO CROSS CORLE AT 12000 FT. WE WERE THEN GIVEN WHAT I THOUGHT TO BE 10 MI N OF LVZ AT 10000 FT. I CONFIRMED THE 10000 FT PER COMPANY FOM WITH CAPT AND THEN BUILT NEW ONE IN FMC WITH 10000 FT RESTR; DELETING CORLE AT 12000 FT. AT ABOUT 11000 FT; ZNY ASKED IF WE WERE GOING TO LEVEL AT 12000 FT. CAPT REPLIED WE WERE DSNDING TO 10000 FT. ZNY SAID WE WERE ONLY CLRED TO 12000 FT. I STOPPED THE DSCNT AND CLBED BACK TO 12000 FT. AFTER RECEIVING THIS DSCNT CLRNC; WE WERE GIVEN A SHORT VECTOR TO THE W; THEN CLRED TO LVZ. BEFORE THE VECTOR; WE WERE FLYING THE MAZIE 1 ARR AND PLANNED TO CROSS CORIE AT 12000 FT. THE CLRNC GIVEN BY ZNY HAD US XING CLOSE TO CORIE (2 MI) AT 12000 FT WHICH ADDED WORKLOAD AND CONFUSION. DURING THIS DSCNT AND CLRNC; WE HAD A MEDICAL EMER IN THE CABIN OF THE ACFT AND HAD NUMEROUS CALLS FROM THE FLT ATTENDANT ON THE COCKPIT SPEAKER WHICH ADDED DISTR DURING A CRITICAL PHASE OF FLT. I BELIEVE THE MEDICAL EMER DISTR HAD A LOT TO DO WITH THE DEV AND ALSO THE CTLR'S CHANGES ADDED TO THE WORKLOAD AND CONFUSION. LESS COM WITH CABIN CREWS DURING CRITICAL PHASES OF FLT MIGHT HELP PREVENT THESE SITS.