MO. REV. STAT. § 565.073. DOMESTIC ASSAULT, SECOND DEGREE — PENALTY
1. A person commits the offense of domestic assault in the second degree if the act involves a domestic victim, as the term “domestic victim” is defined under Section 565.002, and he or she:
(1) Knowingly causes physical injury to such family or household member by any means, including but not limited to, use of a deadly weapon or dangerous instrument, or by choking or strangulation; or
(2) Recklessly causes serious physical injury to such family or household member; or
(3) Recklessly causes physical injury to such family or household member by means of any deadly weapon.
2. The offense of domestic assault in the second degree is a Class D felony.