T34.81 Frostbite with tissue necrosis of ankle

Non-billable header with 3 child codes.

Applies from T34 Frostbite with tissue necrosis

7th character note

• The appropriate 7th character is to be added to each code from category T34

7th character required

• A — initial encounter
• D — subsequent encounter
• S — sequela

Codes under T34.81

• T34.811 Frostbite with tissue necrosis of right ankle
• T34.812 Frostbite with tissue necrosis of left ankle
• T34.819 Frostbite with tissue necrosis of unspecified ankle

Code annotations containing back-references to T34.81

Back-references to T34.8

• Type 2 Excludes: T34.7 Frostbite with tissue necrosis of knee and lower leg ("frostbite with tissue necrosis of ankle and foot (T34.8-)")

Back-references to T34

• Type 2 Excludes: I73 Other peripheral vascular diseases ("frostbite (T33-T34)")
• Type 2 Excludes: T68 Hypothermia ("frostbite (T33-T34)")
• Type 2 Excludes: T69 Other effects of reduced temperature ("frostbite (T33-T34)")

Diagnosis Index entries for T34.81

• Frostbite (superficial) › ankle › with tissue necrosis

Nearby codes

• T34.72 Frostbite with tissue necrosis of left knee and lower leg
• T34.72XA Frostbite with tissue necrosis of left knee and lower leg, initial encounter
• T34.72XD Frostbite with tissue necrosis of left knee and lower leg, subsequent encounter
• T34.72XS Frostbite with tissue necrosis of left knee and lower leg, sequela
• T34.8 Frostbite with tissue necrosis of ankle, foot, and toe(s)
• T34.81 Frostbite with tissue necrosis of ankle (this code)
• T34.811 Frostbite with tissue necrosis of right ankle
• T34.811A Frostbite with tissue necrosis of right ankle, initial encounter
• T34.811D Frostbite with tissue necrosis of right ankle, subsequent encounter
• T34.811S Frostbite with tissue necrosis of right ankle, sequela
• T34.812 Frostbite with tissue necrosis of left ankle