Non-prs chr ulc oth prt unsp ft w bne invl w/o evd of necr

This code signifies a persistent, non-pressure-related open sore on an unspecified part of the foot, extending down to and involving the bone. Importantly, there is no visible evidence of dead tissue (necrosis) within the ulcer or surrounding area. This indicates a deep ulceration that has progressed beyond soft tissue involvement.

Apply this code when documentation clearly states a chronic, non-pressure ulcer on the foot with confirmed bone involvement, such as osteomyelitis or visible bone in the ulcer bed. This is appropriate when the physician explicitly notes the absence of necrosis. This code is often used for diabetic foot ulcers or ulcers resulting from vascular insufficiency that have penetrated to the bone.

• Ensure documentation specifies "bone involvement" and explicitly states "without evidence of necrosis."
• Do not use this code if the ulcer is due to pressure (e.g., decubitus ulcer); use appropriate L89 codes instead.
• Always sequence this code after the underlying condition causing the ulcer (e.g., E11.621 for diabetic foot ulcer).