MCMCB Pro
T81.81XS

T81.81XSComplication of inhalation therapy, sequela

Billable / specific codeICD-10-CMPOA exempt

T81.81XS is a billable, specific ICD-10-CM code for complication of inhalation therapy, sequela. It is valid for submission on a claim.

7th character "S" — sequela

The appropriate 7th character is to be added to each code from category T81

A
initial encounter
D
subsequent encounter
S
sequela

Risk adjustment

T81.81XS 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.

Medicare coverage

T81.81XS is named in 5 Medicare coverage policies 5 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A53058Billing and Coding: Home Health Physical Therapy
  • A53064Billing and Coding: Outpatient Occupational Therapy
  • A56612Billing and Coding: CT of the Head
  • A57326Billing and Coding: Electrocardiograms

Related codes at this level

Codes that share T81.81. If T81.81XS is not quite right, the correct code is usually one of these.

Questions about T81.81XS

Is T81.81XS a billable ICD-10-CM code?
Yes. T81.81XS is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does T81.81XS sit in the tabular list?
Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Complications of surgical and medical care, not elsewhere classified (T80-T88).
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.