MCMCB Pro
Y26.XXXS

Y26.XXXSExposure to smoke, fire and flames, undetermined intent, sequela

Billable / specific codeICD-10-CM

Y26.XXXS is a billable, specific ICD-10-CM code for exposure to smoke, fire and flames, undetermined intent, sequela. It is valid for submission on a claim.

7th character "S" — sequela

The appropriate 7th character is to be added to code Y26

A
initial encounter
D
subsequent encounter
S
sequela

Risk adjustment

Y26.XXXS 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 Y26. If Y26.XXXS is not quite right, the correct code is usually one of these.

Questions about Y26.XXXS

Is Y26.XXXS a billable ICD-10-CM code?
Yes. Y26.XXXS is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Y26.XXXS sit in the tabular list?
External causes of morbidity (V00-Y99), in the block Event of undetermined intent (Y21-Y33).
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.