MCMCB Pro
T34.90XD

T34.90XDFrostbite with tissue necrosis of unspecified sites, subsequent encounter

Billable / specific codeICD-10-CMPOA exempt

T34.90XD is a billable, specific ICD-10-CM code for frostbite with tissue necrosis of unspecified sites, subsequent encounter. It is valid for submission on a claim.

7th character "D" — subsequent encounter

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

A
initial encounter
D
subsequent encounter
S
sequela

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Frostbite with tissue necrosis NOS

Risk adjustment

T34.90XD does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Related codes at this level

Codes that share T34.90. If T34.90XD is not quite right, the correct code is usually one of these.

Questions about T34.90XD

Is T34.90XD a billable ICD-10-CM code?
Yes. T34.90XD is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does T34.90XD sit in the tabular list?
Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Frostbite (T33-T34).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.