ICD-10 O9A.311
Billable / SpecificPhysical abuse complicating pregnancy, first trimester
About ICD-10-CM O9A.311
ICD-10-CM code O9A.311 represents Physical abuse complicating pregnancy, first trimester. This is a billable/specific code in the Pregnancy, Childbirth, and Puerperium chapter (block O9A). The 2026 edition of ICD-10-CM O9A.311 became effective on October 1, 2025.
Coding Tips for O9A.311
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 O9A.311
Local Coverage Determinations (LCDs) from CMS MACs that list O9A.311 as a covered diagnosis.
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Commercial Payer Coverage
Coverage policies from major commercial payers referencing O9A.311.
1 Medicare
CPT Codes Commonly Billed with O9A.311
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 O9A.311 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 |
|---|---|---|
| O9A.311 | 64891 | 10000 |
| O9A.311 | 64893 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To O9A.311
Other codes in section O94-O9A (Other obstetric conditions, not elsewhere classified).
ICD-10 O9A.311, Billing FAQ
Is ICD-10 code O9A.311 billable? +
Yes, O9A.311 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What ICD-9 codes does O9A.311 map to? +
Per CMS GEMs, O9A.311 maps to ICD-9 codes: 64891, 64893. 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 May 31, 2026.
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