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T81.8

T81.8Other complications of procedures, not elsewhere classified

Non-billable headerICD-10-CM

T81.8 is a non-billable header ICD-10-CM code for other complications of procedures, not elsewhere classified. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

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

A
initial encounter
D
subsequent encounter
S
sequela

Excludes2 — not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

  • hypothermia following anesthesia (T88.51)
  • malignant hyperpyrexia due to anesthesia (T88.3)

Other codes that can never be billed with T81.8

These codes carry an Excludes1 note pointing at T81.8. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading T81.8 alone.

Risk adjustment

T81.8 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.

Code to one of these instead T81.8

4 child codes. Green means billable.

Related codes at this level

Codes that share T81. If T81.8 is not quite right, the correct code is usually one of these.

Questions about T81.8

Is T81.8 a billable ICD-10-CM code?
No. T81.8 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does T81.8 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.