Hospital spokeswoman Susan Gregg said Friday that 25-year-old Amanda Skorjanc has been transferred to another facility for inpatient rehabilitation. The young woman suffered two broken legs and a broken arm.
Her 5-month-old boy, Duke Suddarth, was discharged Wednesday from Children's Hospital in Seattle.
Two men injured in the March 22 slide remain at Harborview.
The hospital says a 37-year-old man and an 81-year-old man were both in satisfactory condition Friday.
Meanwhile, the Snohomish County medical examiner's office has now identified all 36 victims it has received from the Oso mudslide. The office on Friday added the name of 14-year-old Denver Harris of Arlington, who was killed by blunt force injuries. The boy had been on the missing list.
Three weeks after the March 22 slide, seven people remain missing and a search continues in the debris.
Washington Gov. Jay Inslee visited the area Friday, spending time with school children and first responders.