I97.2 vs T86.91
I97.2 (Postmastectomy lymphedema syndrome) 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 I97.2: “postmastectomy lymphedema syndrome (I97.2)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| I97.2Postmastectomy lymphedema syndrome | T86.91Unspecified transplanted organ and tissue rejection | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | I00-I99 — Diseases of the Circulatory System (I00-I99) | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) |
| Definition | Postmastectomy lymphedema syndrome is a billable ICD-10-CM diagnosis code (I97.2). | Unspecified transplanted organ and tissue rejection is a billable ICD-10-CM diagnosis code (T86.91). |
| Includes | Elephantiasis due to mastectomy Obliteration of lymphatic vessels | — |
| 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