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T86.20

✓ Billable

Unspecified complication of heart transplant

Injury, poisoning and certain other consequences of external causes (S00-T88)

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❌ Excludes1

inherited

Rules inherited from parent codes in the hierarchy.

T86.2
  • • complication of:
  • • artificial heart device (T82.5-)
  • • heart-lung transplant (T86.3-)

📋 Code Instructions

inherited
T86
  • • 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)

Clinical Description

ICD-10-CM code T86.20 represents unspecified complication of heart transplant. This code falls under the Injury, poisoning and certain other consequences of external causes (S00-T88) classification. It is a billable/specific code valid for HIPAA-covered transactions as of October 1, 2025 (FY2026). This code can be used to indicate a diagnosis for reimbursement purposes on insurance claims.

This is a 6-character code at the 5th level of specificity. This is the most specific code available in this subcategory. Coders should note that T86.20 has 3 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.

Frequently Asked Questions

What is ICD-10 code T86.20?

ICD-10-CM code T86.20 is "Unspecified complication of heart transplant". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).

Is T86.20 a billable ICD-10 code?

Yes, T86.20 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

What codes are excluded with T86.20?

T86.20 has 3 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.

Related Codes in T86.2

Other codes in the same category that may be relevant for differential coding:

T86.21Heart transplant rejectionT86.22Heart transplant failureT86.23Heart transplant infectionT86.29Other complications of heart transplant

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Code Information

CodeT86.20
BillableYes
ParentT86.2
CategoryInjury, poisoning and certain other consequences of external causes (S00-T88)
Excludes13 rule(s)
Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)