L89.600

Billable

Pressure ulcer of unspecified heel, unstageable

HCC Category Mapping

V28HCC 381 — Pressure Ulcer of Skin, Unstageable/Unspecified

0.000

V24HCC 158 — Pressure Ulcer of Skin with Full Thickness Skin Loss

0.662

ESRDHCC 158 — Pressure Ulcer of Skin with Full Thickness Skin Loss

0.000

What This Code Means

A pressure ulcer on the heel (location not specified as left or right) that cannot be staged because the wound is covered by eschar or slough.

Coding Tips

•Unstageable ulcers typically have eschar (black tissue) or slough (yellow/tan tissue) obscuring the wound depth; document this in the record
•Once eschar/slough is removed and depth can be assessed, reassign to appropriate stage code (L89.601-L89.604)

Clinical Significance

An unstageable pressure ulcer of the unspecified heel indicates wound depth cannot be determined due to slough or eschar covering the wound bed. This is clinically significant because it suggests at least a stage 3 or 4 ulcer beneath the obscuring tissue, reflecting substantial tissue damage and high resource utilization. Risk adjustment captures these as high-acuity skin conditions requiring intensive wound care management.

Documentation Requirements

✓Exact anatomical location of the pressure ulcer
✓Description of wound bed including presence of slough, eschar, or necrotic tissue preventing staging
✓Clinical reasoning for why the ulcer cannot be staged (e.g., wound bed obscured by eschar)
✓Wound dimensions (length x width) if measurable
✓Current treatment plan including wound care modality and dressing type
✓Assessment of surrounding skin (maceration, induration, erythema)
✓Etiology of pressure (immobility, positioning, medical device)
✓Presence or absence of infection signs

Commonly Confused Codes

L89.603 — Stage 3 pressure ulcer of unspecified heel has a visible wound bed showing subcutaneous tissue L89.604 — Stage 4 pressure ulcer of unspecified heel shows exposed muscle, tendon, or bone L97.4xx — Non-pressure chronic ulcer of heel requires different etiology (venous, arterial, diabetic); verify cause is pressure L89.90 — Unspecified site pressure ulcer should only be used when location is truly undocumented

Code Hierarchy

└L89Pressure ulcer └L89.6Pressure ulcer of heel └L89.60Pressure ulcer of unspecified heel └L89.600Pressure ulcer of unspecified heel, unstageable

└L89.600Pressure ulcer of unspecified heel, unstageable