L97.805
BillableNon-pressure chronic ulcer of other part of unspecified lower leg with muscle involvement without evidence of necrosis
HCC Category Mapping
What This Code Means
A long-lasting open sore on the lower leg (not caused by pressure) where muscle tissue is involved but has not died.
Coding Tips
- •This code indicates muscle involvement without necrosis; distinguish from L97.803 which includes muscle death
- •Document the extent of muscle involvement in the clinical record to support this coding selection
Clinical Significance
This non-pressure chronic ulcer on the other part of unspecified lower leg with viable muscle involvement indicates deep tissue penetration without active tissue death, suggesting the wound is severe but potentially salvageable with aggressive wound care. Chronic non-pressure ulcers are significant for risk adjustment because they indicate ongoing complex wound management needs, increased healthcare utilization, and often reflect underlying systemic conditions such as peripheral vascular disease, diabetes mellitus, or venous insufficiency. Accurate severity coding directly impacts care planning, specialist referral decisions, and appropriate resource allocation for wound care services.
Documentation Requirements
- ✓Confirmation that the ulcer is chronic (present for extended duration, not acute)
- ✓Documentation that the ulcer is NOT caused by pressure (non-pressure etiology)
- ✓Specific anatomical site of the ulcer on the other part of unspecified lower leg
- ✓Query provider for laterality if not documented (left vs. right)
- ✓Wound assessment confirming muscle layer involvement
- ✓Explicit documentation that muscle tissue is viable (no necrosis present)
- ✓Description of wound depth extending to but not destroying muscle
- ✓Underlying etiology or contributing conditions (e.g., venous insufficiency, arterial disease, diabetes mellitus, neuropathy)
- ✓Current wound measurements (length, width, depth) and wound bed description
- ✓Current treatment plan and wound care management