T32.22

Billable

Corrosions involving 20-29% of body surface with 20-29% 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

Chemical burn affecting 20-29% of the body surface with significant deep tissue damage (20-29% third degree burns).

Coding Tips

•This severity level warrants immediate burn center transfer and intensive care management
•Document all affected body regions and any inhalation injury or systemic complications

Clinical Significance

Corrosions involving 20-29% of body surface area where all affected tissue (20-29%) is third-degree represents severe chemical burn injury with complete tissue destruction requiring immediate life-saving intervention. This pattern indicates aggressive chemical action causing full-thickness tissue loss across the entire affected area, demanding specialized chemical burn protocols and intensive monitoring for systemic complications.

Documentation Requirements

✓Documentation that 20-29% of total body surface area has chemical corrosion
✓Clear documentation that all affected areas (20-29%) are third-degree
✓Identification of the specific chemical agent and concentration if available
✓Comprehensive documentation of emergency decontamination procedures
✓Assessment confirming complete tissue destruction through all skin layers
✓Evidence of specialized chemical burn center care
✓Documentation of systemic toxicity monitoring and treatment
✓Surgical planning for extensive debridement and reconstruction

Commonly Confused Codes

T31.22 — Thermal burns 20-29% TBSA with 20-29% third degree (thermal, not chemical)T32.21 — Corrosions 20-29% TBSA with 10-19% third degree (less third-degree)T32.32 — Corrosions 30-39% TBSA with 20-29% third degree (larger total area)T32.20 — Corrosions 20-29% TBSA with no third degree involvement T32.33 — Corrosions 30-39% TBSA with 30-39% third degree (larger area)

Code Hierarchy

└T32Corrosions classified according to extent of body surface involved └T32.2Corrosions involving 20-29% of body surface └T32.22Corrosions involving 20-29% of body surface with 20-29% third degree corrosion

└T32.22Corrosions involving 20-29% of body surface with 20-29% third degree corrosion