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Compare/D78 vs T86.91

D78 vs T86.91

D78 (Intraoperative and postprocedural complications of the spleen) compared with T86.91 (Unspecified transplanted organ and tissue rejection), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).

Can these codes be reported together?

Yes, when both are documented. T86.91 carries an Excludes2 note covering D78: “intraoperative and postprocedural complications of specified body systems (D78.-, E36.-, E89.-, G97.3-, G97.4, H59.3-, H59.-, H95.2-, H95.3, I97.4-, I97.5, J95.6-, J95.7, K91.6-, L76.-, M96.-, N99.-)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

Side by side

D78Intraoperative and postprocedural complications of the spleenT86.91Unspecified transplanted organ and tissue rejection
Billing statusNon-billable header

Report instead: D78.01, D78.02, D78.11, D78.12, D78.21

Billable
ClassificationD50-D89 — Diseases of the Blood and Blood-forming Organs and Certain Disorders Involving the Immune Mechanism (D50-D89)S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)
DefinitionIntraoperative and postprocedural complications of the spleen is a non-billable ICD-10-CM category code (D78).Unspecified transplanted organ and tissue rejection is a billable ICD-10-CM diagnosis code (T86.91).
Use additional code
code to identify other transplant complications, such as:
graft-versus-host disease (D89.81-)
malignancy associated with organ transplant (C80.2)

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources