N.j. R. Evid. 506
As used in this act, (a) "patient" means a person who, for the sole purpose of securing preventive, palliative, or curative treatment, or a diagnosis preliminary to such treatment, of his physical or mental condition, consults a physician, or submits to an examination by a physician; (b) "physician" means a person authorized or reasonably believed by the patient to be authorized, to practice medicine in the State or jurisdiction in which the consultation or examination takes place; (c) "holder of the privilege" means the patient while alive and not under the guardianship of the guardian of the person of an incompetent patient, or the personal representative of a deceased patient; (d) "confidential communication between physician and patient" means such information transmitted between physician and patient, including information obtained by an examination of the patient, as is transmitted in confidence and by a means which, so far as the patient is aware, discloses the information to no third persons other than those reasonably necessary for the transmission of the information or the accomplishment of the purpose for which it is transmitted.
Except as otherwise provided in this act, a person, whether or not a party, has a privilege in a civil action or in a prosecution for a crime or violation of the disorderly persons law or for an act of juvenile delinquency to refuse to disclose, and to prevent a witness from disclosing, a communication, if he claims the privilege and the judge finds that (a) the communication was a confidential communication between patient and physician, and (b) the patient or the physician reasonably believed the communication to be necessary or helpful to enable the physician to make a diagnosis of the condition of the patient or to prescribe or render treatment therefor, and (c) the witness (i) is the holder of the privilege or (ii) at the time of the communication was the physician or a person to whom disclosure was made because reasonably necessary for the transmission of the communication or for the accomplishment of the purpose for which it was transmitted or (iii) is any other person who obtained knowledge or possession of the communication as the result of an intentional breach of the physician's duty of nondisclosure by the physician or his agent or servant and (d) the claimant is the holder of the privilege or a person authorized to claim the privilege for him.
There is no privilege under this act as to any relevant communication between the patient and his physician (a) upon an issue of the patient's condition in an action to commit him or otherwise place him under the control of another or others because of alleged mental incompetence, or in an action in which the patient seeks to establish his competence or in an action to recover damages on account of conduct of the patient which constitutes a criminal offense other than a misdemeanor, or (b) upon an issue as to the validity of a document as a will of the patient, or (c) upon an issue between parties claiming by testate or intestate succession from a deceased patient.
There is no privilege under this act in an action in which the condition of the patient is an element or factor of the claim or defense of the patient or of any party claiming through or under the patient or claiming as a beneficiary of the patient through a contract to which the patient is or was a party or under which the patient is or was insured.
There is no privilege under this act as to information which the physician or the patient is required to report to a public official or as to information required to be recorded in a public office, unless the statute requiring the report or record specifically provides that the information shall not be disclosed.
No person has a privilege under this act if the judge finds that sufficient evidence, aside from the communication, has been introduced to warrant a finding that the services of the physician were sought or obtained to enable or aid anyone to commit or to plan to commit a crime or a tort, or to escape detection or apprehension after the commission of a crime or a tort.
A privilege under this act as to a communication is terminated if the judge finds that any person while a holder of the privilege has caused the physician or any agent or servant of the physician to testify in any action to any matter of which the physician or his agent or servant gained knowledge through the communication.
N.j. R. Evid. 506