T32.77

Billable

Corrosions involving 70-79% of body surface with 70-79% 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 70-79% of the body surface, with the deepest burns (third degree) covering 70-79% of the affected area. This is a catastrophic, near-total body injury with extremely high mortality risk.

Coding Tips

•Verify that third-degree percentage does not exceed total body surface percentage in the code selection
•These cases often involve intensive care unit admission and specialized burn management protocols

Clinical Significance

This represents catastrophic chemical burns affecting 70-79% of the body where nearly all affected area has full-thickness destruction (70-79% third-degree), indicating near-total body injury with extremely high mortality risk. These patients require immediate intensive burn care with extensive surgical reconstruction and face grave prognosis with minimal viable skin remaining.

Documentation Requirements

✓Total body surface area (70-79%)
✓Third-degree burn extent (70-79%)
✓Chemical agent causing massive injury
✓Exposure details and duration
✓Current care status and viability
✓Anatomical areas involved
✓Multiple organ complications
✓Extensive surgical procedures and grafting

Commonly Confused Codes

T32.76 — Has 60-69% third-degree involvement instead of 70-79%T32.88 — Has 80-89% third-degree involvement instead of 70-79%T32.67 — Involves 60-69% total BSA instead of 70-79%T31.77 — Thermal burns rather than chemical corrosions

Code Hierarchy

└T32Corrosions classified according to extent of body surface involved └T32.7Corrosions involving 70-79% of body surface └T32.77Corrosions involving 70-79% of body surface with 70-79% third degree corrosion

└T32.77Corrosions involving 70-79% of body surface with 70-79% third degree corrosion