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T86.8403

T86.8403Corneal transplant rejection, bilateral

Billable / specific codeICD-10-CMbilateral

T86.8403 is a billable, specific ICD-10-CM code for corneal transplant rejection, bilateral. It is valid for submission on a claim.

Risk adjustment

T86.8403 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

T86.8403 is named in 12 Medicare coverage policies 12 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A55717Billing and Coding: Lab: Flow Cytometry
  • A56457Billing and Coding: Corneal Pachymetry
  • A56464Billing and Coding: Flow Cytometry
  • A56537Billing and Coding: Scanning Computerized Ophthalmic Diagnostic Imaging (SCODI)

Related codes at this level

Codes that share T86.840. If T86.8403 is not quite right, the correct code is usually one of these.

Questions about T86.8403

Is T86.8403 a billable ICD-10-CM code?
Yes. T86.8403 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does T86.8403 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.