Which method is best for identifying patients using two patient identifiers?

What is the ICD-9-CM code for excision axillary hidradenitis complex repair? The pigment melanin and contribute to skin color? What is the cpt code for intermuscular injection? What skull fracture causes loss of smell? What is Cpt code for esophagogastroscopy? What does the phrase ''rub salt in an open wound'' mean? What does LOC stand for? What does court code 43470 stand for? What is a medical interpreter? What is the ICD-9 diagnosis code for getting a tooth knocked out from a blow to the face? What does keloke mean? What refers to the cessation of menstruation? What is the icd-9 for an appendiceal mass? Can you use doctor in a sentence? How to spell u are very beautiful? What is the medical term meaning inflammation of the heart lining and valves? What connotations of beat are there? What does bootyfay mean? If a medical term has three syllables usually it is the syllable that gets the accent when the word is pronounced. A) first B) second C)third D) There is no pattern or rule in this regard.? Does the HCPCS have its own listing of modifiers and how do they differ from the CPT modifiers?

Which method is best for identifying patients using two patient identifiers?