T32.99
BillableCorrosions involving 90% or more of body surface with 90% or more third degree corrosion
HCC Category Mapping
V28HCC 385 — Severe Skin Burn or Condition
0.350V24HCC 162 — Severe Skin Burn or Condition
0.517ESRDHCC 162 — Severe Skin Burn or Condition
0.000What This Code Means
Severe chemical burns affecting 90% or more of the body with 90% or more of the burns being the most severe third-degree type, representing near-total full-thickness destruction.
Coding Tips
- •This is the most severe corrosion classification; document the specific agent causing the corrosion if known
- •Requires seventh character extension and likely multiple additional codes for complications and treatment
Clinical Significance
This represents the most catastrophic chemical burn injury possible, affecting 90% or more of the body with 90% or more being the deepest, most severe third-degree burns. This indicates near-total full-thickness destruction with minimal viable skin remaining and represents the highest severity of chemical injury with extremely grave prognosis and exceptional mortality risk.
Documentation Requirements
- ✓Total body surface area (90% or greater)
- ✓Third-degree burn percentage (90% or greater)
- ✓Chemical agent causing total body destruction
- ✓Exposure circumstances and timeline
- ✓Current care status and survival prospects
- ✓Anatomical assessment of viable tissue
- ✓Multiple organ system failure
- ✓Palliative vs. aggressive care decisions
Commonly Confused Codes
Code Hierarchy
└T32Corrosions classified according to extent of body surface involved└T32.9Corrosions involving 90% or more of body surface└T32.99Corrosions involving 90% or more of body surface with 90% or more third degree corrosion
└T32.99Corrosions involving 90% or more of body surface with 90% or more third degree corrosion