T34.40XD is the authoritative medical code for Frostbite with tissue necrosis of unspecified arm, subsequent encounter. This classification is used in medical billing and clinical recording to specify the clinical criteria for frostbite with tissue necrosis of unspecified arm, subsequent encounter (ICD-10-CM T34.40XD), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Frostbite with tissue necrosis of unspecified arm, subsequent encounter is a billable ICD-10-CM diagnosis code T34.40D. Excludes2 (not included here): frostbite with tissue necrosis of wrist and hand T34.5-; hypothermia and other effects of reduced temperature (T68, T69.-). 7th character: The appropriate 7th character is to be added to each code from category T34.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for T34.40XD in the official ICD-10-CM tabular list.
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- frostbite with tissue necrosis of wrist and hand T34.5-
- hypothermia and other effects of reduced temperature (T68, T69.-)
Frequently Asked Questions (FAQ) & Clinical Guidance
Does T34.40XD require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category T34.
Can T34.40XD be reported alongside related conditions?
Per official ICD-10-CM Excludes2 instructions, T34.40XD and the following are not considered part of each other and may both be reported when both conditions are present: frostbite with tissue necrosis of wrist and hand (T34.5-); hypothermia and other effects of reduced temperature (T68, T69.-).
Nearest Codes in This Family
Official ICD-10-CM classifications closest to T34.40XD in its code family, with their registry titles.
- T34 — Frostbite with tissue necrosis
- T34.0 — Frostbite with tissue necrosis of head
- T34.01 — Frostbite with tissue necrosis of ear
- T34.011 — Frostbite with tissue necrosis of right ear
- T34.011A — Frostbite with tissue necrosis of right ear, initial encounter
- T34.011D — Frostbite with tissue necrosis of right ear, subsequent encounter
- T34.011S — Frostbite with tissue necrosis of right ear, sequela
- T34.012 — Frostbite with tissue necrosis of left ear
- T34.012A — Frostbite with tissue necrosis of left ear, initial encounter
- T34.012D — Frostbite with tissue necrosis of left ear, subsequent encounter
View all 40 codes in the T34 family