Non-prs chronic ulcer of unsp forearm limited to brkdwn skin

This code describes a chronic ulcer on an unspecified forearm that is not caused by pressure. The ulcer's severity is limited to the epidermis and dermis, indicating only superficial tissue loss. This condition typically results from underlying vascular insufficiency, neuropathy, or other systemic diseases.

Use this code when documentation specifies a non-pressure chronic ulcer located on either the right or left forearm, and the depth is explicitly noted as breakdown of skin only. This code is appropriate when the specific forearm (left or right) is not documented. Supporting documentation should clearly state the ulcer's chronicity, non-pressure etiology, and superficial depth.

• Do not use this code if the ulcer extends beyond the skin to involve subcutaneous tissue, muscle, or bone; instead, select a more specific code indicating greater depth.
• Ensure the documentation explicitly states "non-pressure" to differentiate from pressure ulcers.
• If the specific forearm is known (left or right), use the more precise codes L98.A21- or L98.A22-.