ICD-10 O29.293
Billable / SpecificOther central nervous system complications of anesthesia during pregnancy, third trimester
About ICD-10-CM O29.293
ICD-10-CM code O29.293 represents Other central nervous system complications of anesthesia during pregnancy, third trimester. This is a billable/specific code in the Pregnancy, Childbirth, and Puerperium chapter (block O29). The 2026 edition of ICD-10-CM O29.293 became effective on October 1, 2025.
Coding Tips for O29.293
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 O29.293
Local Coverage Determinations (LCDs) from CMS MACs that list O29.293 as a covered diagnosis.
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Commercial Payer Coverage
Coverage policies from major commercial payers referencing O29.293.
1 Medicare
CPT Codes Commonly Billed with O29.293
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 O29.293 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 |
|---|---|---|
| O29.293 | 64681 | 10000 |
| O29.293 | 64683 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To O29.293
Other codes in section O20-O29 (Other maternal disorders predominantly related to pregnancy).
ICD-10 O29.293, Billing FAQ
Is ICD-10 code O29.293 billable? +
Yes, O29.293 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What ICD-9 codes does O29.293 map to? +
Per CMS GEMs, O29.293 maps to ICD-9 codes: 64681, 64683. 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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