; and (B) a perception or belief, even if inaccurate, concerning the race, color, religion, sex, sexual orientation, gender identity, or national origin, respectively, of the individual. (2) Gender identity The term gender identity means the gender-related identity, appearance, mannerisms, or other gender-related characteristics of an individual, regardless of the individual’s designated sex at birth. (3) Including The term including means including, but not limited to, consistent with the term’s standard meaning in Federal law. (4) Sex The term sex includes— (A) a sex stereotype; (B) pregnancy, childbirth, or a related medical condition; and (C) sexual orientation or gender identity. (5) Sexual orientation The term sexual orientation means homosexuality, heterosexuality, or bisexuality. (b) Rules In this title— (1) (with respect to sex) pregnancy, childbirth, or a related medical condition shall not receive less favorable treatment than other physical conditions