O90.0 vs T81.3
O90.0 and T81.3 can never be reported together. ICD-10-CM declares them mutually exclusive with an Excludes1 note, meaning the two conditions cannot occur in the same patient — so exactly one of them is correct for any given encounter.
The official note, declared on T81.3
disruption of cesarean delivery wound (O90.0)
O90.0
Disruption of cesarean delivery wound
Billable
- Chapter 15
- Pregnancy, childbirth and the puerperium
- Section
- O85-O92
Use when the record says
- Dehiscence of cesarean delivery wound
Indexed under
- Dehiscence › cesarean wound (of)
- Complication › cesarean delivery wound NEC › disruption (s) (from) (of)
- Puerperal, puerperium › disruption › cesarean wound (complicated by, complications)
- Disruption › wound › operation › cesarean (of)
T81.3
Disruption of wound, not elsewhere classified
Not billable
- Chapter 19
- Injury, poisoning and certain other consequences of external causes
- Section
- T80-T88
Use when the record says
- Disruption of any suture materials or other closure methods
These two codes sit in different chapters of the Tabular List, which is usually the clearest signal that they describe different underlying processes rather than different degrees of the same one.
Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027