ICD-10 O46
Non-Billable HeaderAntepartum hemorrhage, not elsewhere classified
About ICD-10-CM O46
ICD-10-CM code O46 represents Antepartum hemorrhage, not elsewhere classified. This is a non-billable header code in the Pregnancy, Childbirth, and Puerperium chapter (block O46). The 2026 edition of ICD-10-CM O46 became effective on October 1, 2025. Non-billable codes cannot be used as a primary or secondary diagnosis on a claim, use a more specific child code instead.
Coding Tips for O46
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
Most O codes require a 7th character indicating trimester (1 = first, 2 = second, 3 = third). Some require fetus identification character. Code O09 (supervision of high-risk pregnancy) is required as a secondary code when applicable.
Type 1 Excludes
Pure excludes, these codes can never be coded together with O46. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- hemorrhage in early pregnancy (O20.-)
- intrapartum hemorrhage NEC (O67.-)
- placenta previa (O44.-)
- premature separation of placenta [abruptio placentae] (O45.-)
Medicare LCD Coverage for O46
Local Coverage Determinations (LCDs) from CMS MACs that list O46 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing O46.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but O46 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with O46
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Codes Adjacent To O46
Other codes in section O30-O48 (Maternal care related to the fetus and amniotic cavity and possible delivery problems).
ICD-10 O46, Billing FAQ
Is ICD-10 code O46 billable? +
No, O46 is a non-billable header code. Use a more specific child code from block O46 when submitting claims.
What codes are Type 1 Excludes for O46? +
Type 1 Excludes (never code together with O46): hemorrhage in early pregnancy (O20.-); intrapartum hemorrhage NEC (O67.-); placenta previa (O44.-)
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 1, 2026.
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