[Verified Answer]: Mrs

Mrs. Thompson was admitted to the SNF on November 17 with a pressure ulcer on the sacrum per the skin assessment performed at admission. The wound was documented on the nursing admission assessment as Stage 2 based on its appearance. However, when researching the history of the wound while completing the Admission MDS, the NAC notes that the hospital records show the same sacral ulcer described as a Stage 3 upon admission to the hospital on November 10. The hospital description includes slough with full-thickness skin loss. There are no records for this ulcer before the hospital admission. Considering both current and historic tissue involvement, how would M0300 be coded for this ulcer?