Frostbite with tissue necrosis of unsp toe(s), subs encntr

This code indicates frostbite that has progressed to tissue death in one or more toes, where the specific toe affected is not documented. It is used for encounters following the initial treatment of the frostbite.

Apply this code when a patient presents for follow-up care, wound management, or further treatment of frostbite affecting the toes, and the medical record confirms tissue necrosis without specifying which toe(s) are involved. This is appropriate for subsequent clinic visits or hospital admissions related to the initial frostbite injury.

• Ensure documentation clearly states "frostbite with tissue necrosis" and specifies "unspecified toe(s)."
• The "D" seventh character signifies a subsequent encounter, meaning the patient is receiving routine care during the healing or recovery phase.
• Do not use for initial treatment; refer to the appropriate "A" seventh character code for the first encounter.