O72.3 vs O99.1
O72.3 and O99.1 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.
O72.3
Postpartum coagulation defects
Billable
- Chapter 15
- Pregnancy, childbirth and the puerperium
- Section
- O60-O77
Use when the record says
- Postpartum afibrinogenemia
- Postpartum fibrinolysis
Indexed under
- Afibrinogenemia › puerperal
- Circulating anticoagulants › following childbirth
- Defibrination › postpartum (syndrome)
- Fibrinolysis › postpartum (hemorrhagic) (acquired)
- Puerperal, puerperium › afibrinogenemia, or other coagulation defect (complicated by, complications)
O99.1
Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, childbirth and the puerperium
Not billable
- Chapter 15
- Pregnancy, childbirth and the puerperium
- Section
- O94-O9A
Use when the record says
- Conditions in D65-D89
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