Non-prs chr ulcer of r ankle with msl invl w/o evd of necr

This code signifies a persistent open sore on the right ankle that is not caused by pressure. The ulceration extends into the muscle tissue but does not show signs of dead tissue. This condition often arises from underlying vascular insufficiency or neuropathic factors.

Use this code when documentation clearly indicates a chronic, non-pressure ulcer located specifically on the right ankle. The physician's notes must specify involvement of the muscle layer and explicitly state the absence of necrosis. This code is appropriate for ulcers due to venous stasis, arterial insufficiency, or diabetic neuropathy, provided the depth and location criteria are met.

• Ensure documentation differentiates between "muscle involvement" and "bone involvement" or "subcutaneous tissue involvement" as these have different codes.
• Always look for explicit statements regarding the presence or absence of necrosis; this significantly impacts code selection.
• Verify laterality (right vs. left ankle) and the specific anatomical site to avoid miscoding.