ICD-10-CM 2027 diagnosis code
T86.842Corneal transplant infection
T86.842 is a header code, so it can't be reported by itself. Choose one of the 4 more specific codes beneath it.
Code last changed in FY2021 (effective October 1, 2020). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About T86.842
T86.842 is the ICD-10-CM diagnosis code for corneal transplant infection. It belongs to category T86 (complications of transplanted organs and tissue), block T80-T88 (complications of surgical and medical care, not elsewhere classified) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.
Within T86.84 (complications of corneal transplant), T86.842 is specifically for corneal transplant infection. Related codes cover corneal transplant rejection (T86.840), corneal transplant failure (T86.841), other complications of corneal transplant (T86.848) and unspecified complication of corneal transplant (T86.849).
To report this condition, pick the subcode that matches the documentation: T86.8421 (right eye), T86.8422 (left eye), T86.8423 (bilateral) and T86.8429 (unspecified eye).
Use an additional code to specify infection. Use an additional code to identify other transplant complications, such as: graft-versus-host disease (D89.81-), malignancy associated with organ transplant (C80.2) and post-transplant lymphoproliferative disorders (PTLD) (D47.Z1).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2021 (expanded into subcodes).
Before ICD-10, this condition was coded in ICD-9-CM as 996.69 (infection and inflammatory reaction due to other internal prosthetic device, implant, and graft).
Specific codes under T86.842
Coding notes
- code to specify infection
Notes that apply from higher levels
Instructions written at a parent level also apply to T86.842.
› From T86.84 Complications of corneal transplant
- mechanical complications of corneal graft (T85.3-)
Broader instructions also apply from T80-T88 Complications of surgical and medical care, not elsewhere classified and Chapter 19: Injury, poisoning and certain other consequences of external causes.
Alphabetic index entries
2 entriesTerms in the official ICD-10-CM index that lead to T86.842.
ICD-9-CM equivalent
Converter →- 996.69Infection and inflammatory reaction due to other internal prosthetic device, implant, and graftapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- FY2021 (effective 10/1/2020): Expanded — no longer billable