T33.81Non-billable (header)
Superficial frostbite of ankle
Sub-codes of T33.81(3)
T33.81 is a non-billable header. Select a sub-code to bill. Sub-codes marked ⚠ require a 7th character — append A, D, or S (and an X placeholder if needed).
Code Hierarchy
┌19Injury, poisoning and certain other consequences of external causes (S00-T88)├T33-T34Frostbite (T33-T34)├T33Superficial frostbite
└T33.81Superficial frostbite of ankle
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