Non-prs chr ulc of unsp thigh with bone invl w/o evd of necr

This code signifies a persistent open sore on an unspecified area of the thigh that is not caused by pressure. The ulceration extends into the bone, indicating a deep tissue involvement, but there is no evidence of dead tissue present. This condition typically arises from underlying vascular insufficiency, neuropathy, or trauma.

Use this code for chronic thigh ulcers where the specific location on the thigh is not documented, and the medical record clearly indicates bone involvement without necrosis. Documentation should specify the chronicity of the ulcer and rule out pressure as the etiology. This code is appropriate when a definitive cause like venous stasis or arterial insufficiency is not yet established or specified.

• Ensure documentation explicitly states "bone involvement" and "without necrosis."
• Avoid using this code if the ulcer is due to pressure; instead, refer to the pressure ulcer codes.
• If the specific location on the thigh (e.g., right, left, anterior, posterior) is known, a more specific code should be used.