T32.84

Billable

Corrosions involving 80-89% of body surface with 40-49% third degree corrosion

HCC Category Mapping

V28HCC 385 — Severe Skin Burn or Condition

0.350

V24HCC 162 — Severe Skin Burn or Condition

0.517

ESRDHCC 162 — Severe Skin Burn or Condition

0.000

What This Code Means

A severe chemical burn affecting 80-89% of the body surface, with the deepest burns (third degree) covering 40-49% of the affected area. This is a near-total body injury with extensive deep tissue destruction and extremely high mortality risk.

Coding Tips

•These cases represent the most severe burn injuries; ensure all complications and comorbidities are documented and coded
•Coordinate with palliative care teams if appropriate, and document goals of care discussions

Clinical Significance

This indicates near-total body chemical burns affecting 80-89% of the body with massive full-thickness destruction (40-49% third-degree), representing catastrophic injury with extremely high mortality risk. These patients require immediate intensive burn care with extensive surgical reconstruction and face critical prognosis with high likelihood of death or profound disability.

Documentation Requirements

✓Body surface area documentation (80-89%)
✓Third-degree burn extent (40-49%)
✓Chemical agent identification and concentration
✓Exposure timeline and circumstances
✓Current care phase and viability assessment
✓Detailed anatomical distribution
✓Multiple organ complications
✓Extensive surgical interventions and grafting

Commonly Confused Codes

T32.83 — Has 30-39% third-degree involvement instead of 40-49%T32.85 — Has 50-59% third-degree involvement instead of 40-49%T32.74 — Involves 70-79% total BSA instead of 80-89%T31.84 — Thermal burns, not chemical corrosions

Code Hierarchy

└T32Corrosions classified according to extent of body surface involved └T32.8Corrosions involving 80-89% of body surface └T32.84Corrosions involving 80-89% of body surface with 40-49% third degree corrosion

└T32.84Corrosions involving 80-89% of body surface with 40-49% third degree corrosion