MCMCB Pro
T80.82XD

T80.82XDComplication of immune effector cellular therapy, subsequent encounter

Billable / specific codeICD-10-CMPOA exempt

T80.82XD is a billable, specific ICD-10-CM code for complication of immune effector cellular therapy, 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 T80

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.

  • adverse effect of immune checkpoint inhibitors and immunostimulant drugs (T45.AX5)
  • complication of bone marrow transplant (T86.0)
  • complication of stem cell transplant (T86.5)

Use additional code

Add a secondary code to capture the detail described below.

  • code to identify the specific complication, such as:
  • cytokine release syndrome (D89.83-)
  • immune effector cell-associated neurotoxicity syndrome (G92.0-)

Inclusion terms

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

  • Complication of chimeric antigen receptor (CAR-T) cell therapy
  • Complication of IEC therapy

Risk adjustment

T80.82XD 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 T80.82. If T80.82XD is not quite right, the correct code is usually one of these.

Questions about T80.82XD

Is T80.82XD a billable ICD-10-CM code?
Yes. T80.82XD is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does T80.82XD 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.