Non-prs chr ulcer of left calf with msl invl w/o evd of necr

This code signifies a persistent open sore on the left calf that is not caused by pressure and extends into the muscle tissue. There is no indication of dead tissue (necrosis) present within the ulcer. This condition often arises from underlying vascular insufficiency or other systemic diseases.

Apply this code when documentation specifies a chronic, non-pressure ulcer located on the left calf with involvement of the muscle layer. The medical record must explicitly state the absence of necrosis. This code is appropriate for ulcers that are not healing spontaneously and require ongoing management.

• Ensure documentation clearly distinguishes between muscle involvement and involvement of subcutaneous tissue or bone.
• Verify the absence of necrosis; if necrosis is present, a different code from the L97.22- series would be appropriate.
• Always sequence this code after the underlying cause of the ulcer, if known (e.g., chronic venous insufficiency).