Corros 80-89% of body surface w 10-19% third degree corros

This diagnosis code signifies a severe chemical burn, or corrosion, affecting a very large portion of the patient's total body surface area (80% to 89%). Within this extensive injury, a significant minority (10% to 19%) of the affected area has progressed to full-thickness tissue destruction, indicating third-degree corrosion. The remaining affected areas would be less severe (first or second degree).

This code is appropriate for patients presenting with extensive chemical burns covering 80-89% of their body, where a substantial portion (10-19%) of that area exhibits full-thickness damage. This typically applies to critical care situations following industrial accidents, chemical assaults, or other incidents involving highly corrosive substances. It should be used when the extent and depth of the corrosion are precisely documented.

• Ensure documentation clearly specifies both the total body surface area affected by corrosion and the percentage of that area that is third-degree.
• Do not use this code if the total body surface area affected is outside the 80-89% range or if the third-degree component is outside the 10-19% range.
• Remember to code any associated external cause, place of occurrence, and activity codes to fully describe the incident.