T33.7 Superficial frostbite of knee and lower leg

Non-billable header with 3 child codes.

Excludes2 (not included here)

• superficial frostbite of ankle and foot (T33.8-)

Applies from T33 Superficial frostbite

Includes

• frostbite with partial thickness skin loss

7th character note

• The appropriate 7th character is to be added to each code from category T33

7th character required

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

Codes under T33.7

• T33.70 Superficial frostbite of unspecified knee and lower leg
• T33.71 Superficial frostbite of right knee and lower leg
• T33.72 Superficial frostbite of left knee and lower leg

Code annotations containing back-references to T33.7

Back-references to T33

• 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 T33.7

• Frostbite (superficial) › knee
• Frostbite (superficial) › leg › lower

Nearby codes

• T33.61XS Superficial frostbite of right hip and thigh, sequela
• T33.62 Superficial frostbite of left hip and thigh
• T33.62XA Superficial frostbite of left hip and thigh, initial encounter
• T33.62XD Superficial frostbite of left hip and thigh, subsequent encounter
• T33.62XS Superficial frostbite of left hip and thigh, sequela
• T33.7 Superficial frostbite of knee and lower leg (this code)
• T33.70 Superficial frostbite of unspecified knee and lower leg
• T33.70XA Superficial frostbite of unspecified knee and lower leg, initial encounter
• T33.70XD Superficial frostbite of unspecified knee and lower leg, subsequent encounter
• T33.70XS Superficial frostbite of unspecified knee and lower leg, sequela
• T33.71 Superficial frostbite of right knee and lower leg