T33.42 Superficial frostbite of left arm

Non-billable ICD-10-CM code.

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

Applies from T33.4 Superficial frostbite of arm

Excludes2 (not included here)

• superficial frostbite of wrist and hand (T33.5-)

Code annotations containing back-references to T33.42

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)")

Nearby codes

• T33.40XS Superficial frostbite of unspecified arm, sequela
• T33.41 Superficial frostbite of right arm
• T33.41XA Superficial frostbite of right arm, initial encounter
• T33.41XD Superficial frostbite of right arm, subsequent encounter
• T33.41XS Superficial frostbite of right arm, sequela
• T33.42 Superficial frostbite of left arm (this code)
• T33.42XA Superficial frostbite of left arm, initial encounter
• T33.42XD Superficial frostbite of left arm, subsequent encounter
• T33.42XS Superficial frostbite of left arm, sequela
• T33.5 Superficial frostbite of wrist, hand, and fingers
• T33.51 Superficial frostbite of wrist