Frostbite with tissue necrosis of left ear, subs encntr

This code signifies a frostbite injury to the left ear that has progressed to tissue death (necrosis). It indicates that the patient is receiving follow-up care for this specific injury, rather than initial treatment.

Apply this code when documenting subsequent encounters for a patient with confirmed frostbite of the left ear where tissue necrosis has occurred. This includes visits for wound care, debridement, or monitoring of the necrotic tissue after the initial treatment phase.

• Ensure documentation clearly specifies the left ear and the presence of tissue necrosis.
• Verify the encounter type is "subsequent" (D) and not initial (A) or sequela (S).
• Always code the underlying cause of the frostbite if known and applicable.