Article 5. Statements Of Mental Or Physical State of California Evidence Code >> Division 10. >> Chapter 2. >> Article 5.

(a) Subject to Section 1252, evidence of a statement of the declarant's then existing state of mind, emotion, or physical sensation (including a statement of intent, plan, motive, design, mental feeling, pain, or bodily health) is not made inadmissible by the hearsay rule when:
  (1) The evidence is offered to prove the declarant's state of mind, emotion, or physical sensation at that time or at any other time when it is itself an issue in the action; or
  (2) The evidence is offered to prove or explain acts or conduct of the declarant.
  (b) This section does not make admissible evidence of a statement of memory or belief to prove the fact remembered or believed.

Subject to Section 1252, evidence of a statement of the declarant's state of mind, emotion, or physical sensation (including a statement of intent, plan, motive, design, mental feeling, pain, or bodily health) at a time prior to the statement is not made inadmissible by the hearsay rule if:
  (a) The declarant is unavailable as a witness; and
  (b) The evidence is offered to prove such prior state of mind, emotion, or physical sensation when it is itself an issue in the action and the evidence is not offered to prove any fact other than such state of mind, emotion, or physical sensation.

Evidence of a statement is inadmissible under this article if the statement was made under circumstances such as to indicate its lack of trustworthiness.

Subject to Section 1252, evidence of a statement is not made inadmissible by the hearsay rule if the statement was made for purposes of medical diagnosis or treatment and describes medical history, or past or present symptoms, pain, or sensations, or the inception or general character of the cause or external source thereof insofar as reasonably pertinent to diagnosis or treatment. This section applies only to a statement made by a victim who is a minor at the time of the proceedings, provided the statement was made when the victim was under the age of 12 describing any act, or attempted act, of child abuse or neglect. "Child abuse" and "child neglect," for purposes of this section, have the meanings provided in subdivision (c) of Section 1360. In addition, "child abuse" means any act proscribed by Chapter 5 (commencing with Section 281) of Title 9 of Part 1 of the Penal Code committed against a minor.