FY2027
MenuClose
Excludes1 pair

O08.3 vs T81.1-

O08.3 and T81.1 are not coded together. ICD-10-CM declares them mutually exclusive with an Excludes1 note — the two conditions are not expected to occur together, so exactly one of them is normally correct for a given encounter. The Official Guidelines carve out one exception: if the two conditions are clearly unrelated to each other, both may be reported.

The official note, declared on T81.1
shock following abortion or ectopic or molar pregnancy (O00-O07, O08.3)
O08.3

Shock following ectopic and molar pregnancy

Billable
Chapter 15
Pregnancy, childbirth and the puerperium
Section
O00-O08
Use when the record says
  • Circulatory collapse following ectopic and molar pregnancy
  • Shock (postprocedural) following ectopic and molar pregnancy
Indexed under
  • Shock › with ectopic or molar pregnancy
  • Shock › complicating ectopic or molar pregnancy
  • Collapse › circulatory › following ectopic or molar pregnancy
  • Collapse › vascular › following ectopic or molar pregnancy
  • Complication › ectopic pregnancy › shock
T81.1

Postprocedural shock

Not billable
Chapter 19
Injury, poisoning and certain other consequences of external causes
Section
T80-T88
Use when the record says
  • Shock during or resulting from a procedure, not elsewhere classified

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