Effective January 1, 2009, the term “decubitus ulcer” was changed to “pressure ulcer.” A six-part staging system for pressure ulcers was put into effect on January 1, 2009, as well. This is what ICD-10 has incorporated to base the series of L89- upon. Classification systems, whether Wagner, University of Texas, etc. for ulcer grading do not apply to pressure ulcers.