T34.529A Frostbite with tissue necrosis of unspecified hand, initial encounter

Billable ICD-10-CM code, FY2026.

Built from T34.529 with 7th character A (initial encounter).

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

Applies from T34.52 Frostbite with tissue necrosis of hand

Excludes2 (not included here)

• frostbite with tissue necrosis of finger(s) (T34.53-)

Medicare Code Edits (MCE v43.1 (April 2026))

• Unspecified code (laterality): Unspecified codes for which a more specific code identifying laterality (right, left, bilateral) exists within the same code family.

Code annotations containing back-references to T34.529A

Back-references to T34.5

• Type 2 Excludes: T34.4 Frostbite with tissue necrosis of arm ("frostbite with tissue necrosis of wrist and hand (T34.5-)")

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)")

Nearby codes

• T34.522 Frostbite with tissue necrosis of left hand
• T34.522A Frostbite with tissue necrosis of left hand, initial encounter
• T34.522D Frostbite with tissue necrosis of left hand, subsequent encounter
• T34.522S Frostbite with tissue necrosis of left hand, sequela
• T34.529 Frostbite with tissue necrosis of unspecified hand
• T34.529A Frostbite with tissue necrosis of unspecified hand, initial encounter (this code)
• T34.529D Frostbite with tissue necrosis of unspecified hand, subsequent encounter
• T34.529S Frostbite with tissue necrosis of unspecified hand, sequela
• T34.53 Frostbite with tissue necrosis of finger(s)
• T34.531 Frostbite with tissue necrosis of right finger(s)
• T34.531A Frostbite with tissue necrosis of right finger(s), initial encounter