Our clinical documentation team in HIM offers this reminder about documenting decubitus ulcers:
Stage 1: Non-blanchable erythema of intact skin.
Stage 2: Partial thickness skin loss involving epidermis, dermis or both.
Stage 3: Full thickness skin loss involving damage to or necrosis of subcutaneous tissue that may extend down to, but not through the underlying fascia.
Stage 4: Full thickness, skin loss with extensive destruction, tissue necrosis or damage to muscle, bone or supporting structures like tendons, joint capsules, etc.
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