ICD-10 O46.8X3
Billable / SpecificOther antepartum hemorrhage, third trimester
About ICD-10-CM O46.8X3
ICD-10-CM code O46.8X3 represents Other antepartum hemorrhage, third trimester. This is a billable/specific code in the Pregnancy, Childbirth, and Puerperium chapter (block O46). The 2026 edition of ICD-10-CM O46.8X3 became effective on October 1, 2025.
Coding Tips for O46.8X3
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.
Medicare LCD Coverage for O46.8X3
Local Coverage Determinations (LCDs) from CMS MACs that list O46.8X3 as a covered diagnosis.
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Commercial Payer Coverage
Coverage policies from major commercial payers referencing O46.8X3.
1 Medicare
CPT Codes Commonly Billed with O46.8X3
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.
Convert O46.8X3 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| O46.8X3 | 64181 | 10000 |
| O46.8X3 | 64183 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To O46.8X3
Other codes in section O30-O48 (Maternal care related to the fetus and amniotic cavity and possible delivery problems).
ICD-10 O46.8X3, Billing FAQ
Is ICD-10 code O46.8X3 billable? +
Yes, O46.8X3 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What ICD-9 codes does O46.8X3 map to? +
Per CMS GEMs, O46.8X3 maps to ICD-9 codes: 64181, 64183. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on July 16, 2026.
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