I97.2 (Postmastectomy lymphedema syndrome) compared with T88.53 (Unintended awareness under general anesthesia during procedure), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Distinct conditions — both may be reported.
“postmastectomy lymphedema syndrome (I97.2)”
An Excludes2 note means the excluded condition is not part of the code above it, but a patient can have both. Report both when both are documented.
Source: CMS ICD-10-CM tabular instructional notes
Yes, when both are documented. T88.53 carries an Excludes2 note covering I97.2: “postmastectomy lymphedema syndrome (I97.2)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
| I97.2Postmastectomy lymphedema syndrome | T88.53Unintended awareness under general anesthesia during procedure | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| 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). | Unintended awareness under general anesthesia during procedure is a non-billable ICD-10-CM category code (T88.53). |
| 7th character | — | The appropriate 7th character is to be added to each code from category T88 |
| Includes | Elephantiasis due to mastectomy Obliteration of lymphatic vessels | — |
| Use additional code | — | code for adverse effect, if applicable, to identify drug (T41.- with fifth or sixth character 5) code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5) code(s) to identify the specified condition resulting from the complication |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources