Frostbite with tissue necrosis of neck, subsequent encounter

This code signifies a frostbite injury to the neck that has resulted in tissue death (necrosis). It indicates that the patient is receiving ongoing care for this specific frostbite injury, rather than the initial treatment. The necrosis implies significant tissue damage requiring continued medical management.

Use this code for follow-up visits, wound care, or surgical debridement related to frostbite of the neck where tissue necrosis has been documented. This applies when the patient is returning for subsequent treatment after the initial encounter for the frostbite injury. It is appropriate for monitoring healing, managing complications, or preparing for reconstructive procedures.

• Ensure documentation clearly specifies frostbite of the neck with confirmed tissue necrosis.
• Verify that the encounter is for subsequent care, not the initial treatment of the injury.
• Always sequence this code after any applicable external cause codes (e.g., exposure to extreme cold).