Pressure ulcer of left ankle, stage 4

This code signifies a severe pressure injury located on the left ankle, characterized by full-thickness tissue loss with exposed bone, tendon, or muscle. It indicates extensive destruction, tissue necrosis, and often damage to supporting structures.

Apply this code when documentation clearly specifies a stage 4 pressure ulcer affecting the left ankle. Supporting documentation must detail the depth of tissue involvement, explicitly mentioning exposed bone, tendon, or muscle, and the precise anatomical location.

• Always confirm the specific anatomical site (left ankle) and the confirmed stage (stage 4) from the provider's documentation.
• Do not use this code for unstageable pressure ulcers or deep tissue injuries; distinct codes exist for those conditions.
• Remember to also code any associated complications, such as osteomyelitis or sepsis, if documented.