Is T86.840 a billable ICD-10-CM code?

No. T86.840 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does T86.840 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).

T86.840

T86.840 — Corneal transplant rejection

Non-billable headerICD-10-CM

T86.840 is a non-billable header ICD-10-CM code for corneal transplant rejection. It cannot be billed on its own: choose one of the more specific child codes below.

Risk adjustment

T86.840 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 T86.840

4 child codes. Green means billable.

Related codes at this level

Codes that share T86.84. If T86.840 is not quite right, the correct code is usually one of these.

Questions about T86.840

Is T86.840 a billable ICD-10-CM code?: No. T86.840 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does T86.840 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).