L98.492

HCC Category Mapping

What This Code Means

A chronic wound on the skin (not caused by pressure) that has eroded deep enough to expose the fatty tissue layer underneath.

Coding Tips

• •This code indicates a specific depth of ulceration; ensure documentation clearly describes fat layer exposure
• •Use with a seventh character to indicate laterality (right, left, or bilateral) when applicable

Clinical Significance

Non-pressure chronic ulcers of the other sites indicate ongoing tissue breakdown from non-pressure etiologies such as venous insufficiency, arterial disease, or inflammatory conditions. This code captures a superficial severity level (with fat layer exposed), which still reflects significant wound care needs and underlying vascular or systemic disease. Accurate capture is critical for risk adjustment as it reflects patient complexity and anticipated resource utilization.

Documentation Requirements

• ✓Provider documentation of the ulcer as chronic (present for extended duration, not acute)
• ✓Anatomical location clearly specified as other sites
• ✓Confirmation that the ulcer is non-pressure in etiology (e.g., venous, arterial, inflammatory, or other documented cause)
• ✓Description of wound bed characteristics and tissue involvement depth
• ✓Documentation of fat layer (subcutaneous tissue) exposure visible in wound bed
• ✓Wound measurements (length, width, depth) and assessment of wound edges and surrounding tissue
• ✓Current treatment plan including wound care interventions

Commonly Confused Codes