Non-prs chr ulc unsp prt r lw leg w msl invl w/o evd of necr

This code signifies a persistent, open sore on the right lower leg that is not caused by pressure, and where the ulceration extends into the muscle tissue. There is no indication of dead tissue (necrosis) present within the wound. This typically represents a deep, non-healing wound affecting the musculature.

Use this code when documentation specifies a chronic ulcer on the right lower leg, explicitly stating muscle involvement without necrosis, and the specific anatomical site of the ulcer is not further defined. This applies to ulcers of various etiologies (e.g., venous, arterial, diabetic) as long as pressure is ruled out as the cause.

• Ensure documentation clearly states "muscle involvement" and "without evidence of necrosis."
• If the specific part of the right lower leg (e.g., calf, ankle) is documented, a more specific L97 subcategory code should be used.
• Always code the underlying cause of the ulcer (e.g., chronic venous insufficiency, diabetes mellitus) as a primary or secondary diagnosis.