T81.83XA vs T88.3
T81.83XA (Persistent postprocedural fistula, initial encounter) compared with T88.3 (Malignant hyperthermia due to anesthesia), 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. T81.83XA carries an Excludes2 note covering T88.3: “malignant hyperpyrexia due to anesthesia (T88.3)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Yes, when both are documented. T88.3 carries an Excludes2 note covering T81.83XA: “complication following procedure NEC (T81.-)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| T81.83XAPersistent postprocedural fistula, initial encounter | T88.3Malignant hyperthermia due to anesthesia | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) |
| Definition | Persistent postprocedural fistula, initial encounter is a billable ICD-10-CM diagnosis code (T81.83A). | Malignant hyperthermia due to anesthesia is a non-billable ICD-10-CM category code (T88.3). |
| 7th character | The appropriate 7th character is to be added to each code from category T81 | The appropriate 7th character is to be added to each code from category T88 |
| Use additional code | code, if known, for site of fistula such as: anal fistula (K60.3-) anorectal fistula (K60.5-) | 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