T86.8499 Unspecified complication of corneal transplant, unspecified eye

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applies from T86 Complications of transplanted organs and tissue

Use additional code

• code to identify other transplant complications, such as:
• graft-versus-host disease (D89.81-)
• malignancy associated with organ transplant (C80.2)
• post-transplant lymphoproliferative disorders (PTLD) (D47.Z1)

Applies from T86.84 Complications of corneal transplant

Excludes2 (not included here)

• mechanical complications of corneal graft (T85.3-)

MS-DRG index

Defines the logic of DRG(s) 919-921 in MDC 21.

Medicare Code Edits (MCE v43.1 (April 2026))

• Unspecified code (laterality): Unspecified codes for which a more specific code identifying laterality (right, left, bilateral) exists within the same code family.

Code annotations containing back-references to T86.8499

Back-references to T86.84

• Type 2 Excludes: T85.3 Mechanical complication of other ocular prosthetic devices, implants and grafts ("other complications of corneal graft (T86.84-)")

Back-references to T86

• Code First: C80.2 Malignant neoplasm associated with transplanted organ ("complication of transplanted organ (T86.-)")
• Code First: D47.Z1 Post-transplant lymphoproliferative disorder (PTLD) ("complications of transplanted organs and tissue (T86.-)")
• Type 2 Excludes: D89 Other disorders involving the immune mechanism, not elsewhere classified ("transplant failure and rejection (T86.-)")
• Code First: D89.81 Graft-versus-host disease ("complications of transplanted organs and tissue (T86.-)")
• Code First: D89.83 Cytokine release syndrome ("complications of transplanted organs and tissue (T86.-)")
• Type 2 Excludes: T78 Adverse effects, not elsewhere classified ("complications of surgical and medical care NEC (T80-T88)")
• Type 2 Excludes: T79 Certain early complications of trauma, not elsewhere classified ("complications occurring during or following medical procedures (T80-T88)")
• Type 2 Excludes: T79 Certain early complications of trauma, not elsewhere classified ("complications of surgical and medical care NEC (T80-T88)")
• Type 2 Excludes: T81 Complications of procedures, not elsewhere classified ("complications of transplanted organs and tissue (T86.-)")
• Type 2 Excludes: T82 Complications of cardiac and vascular prosthetic devices, implants and grafts ("failure and rejection of transplanted organs and tissue (T86.-)")
• Type 2 Excludes: T83 Complications of genitourinary prosthetic devices, implants and grafts ("failure and rejection of transplanted organs and tissue (T86.-)")
• Type 2 Excludes: T84 Complications of internal orthopedic prosthetic devices, implants and grafts ("failure and rejection of transplanted organs and tissues (T86.-)")
• Type 2 Excludes: T85 Complications of other internal prosthetic devices, implants and grafts ("failure and rejection of transplanted organs and tissue (T86.-)")
• Type 1 Excludes: Z98.85 Transplanted organ removal status ("encounter for removal of transplanted organ -code to complication of transplanted organ (T86.-)")

Nearby codes

• T86.8489 Other complications of corneal transplant, unspecified eye
• T86.849 Unspecified complication of corneal transplant
• T86.8491 Unspecified complication of corneal transplant, right eye
• T86.8492 Unspecified complication of corneal transplant, left eye
• T86.8493 Unspecified complication of corneal transplant, bilateral
• T86.8499 Unspecified complication of corneal transplant, unspecified eye (this code)
• T86.85 Complication of intestine transplant
• T86.850 Intestine transplant rejection
• T86.851 Intestine transplant failure
• T86.852 Intestine transplant infection
• T86.858 Other complications of intestine transplant