When is inpatient treatment medically necessary?

  • The state of Washington defines medical necessity for inpatient care as "a requested service which is reasonably calculated to diagnose, correct, cure or alleviate a mental disorder or prevent the worsening of a mental condition that endanger life or cause suffering and pain or result in illness or infirmity or threaten to cause or aggravate a handicap, or cause physical deformity or malfunction and there is no adequate less restrictive alternative available." RCW 71.34.020 (12)
  • For publicly funded admissions, the RSN or the DMHP determines medical necessity for acute psychiatric care.