ICD-10 O99.891
Billable / SpecificOther specified diseases and conditions complicating pregnancy
About ICD-10-CM O99.891
ICD-10-CM code O99.891 represents Other specified diseases and conditions complicating pregnancy. This is a billable/specific code in the Pregnancy, Childbirth, and Puerperium chapter (block O99). The 2026 edition of ICD-10-CM O99.891 became effective on October 1, 2025.
Coding Tips for O99.891
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 O99.891
Local Coverage Determinations (LCDs) from CMS MACs that list O99.891 as a covered diagnosis.
Showing top 2. Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing O99.891.
2 Aetna
1 Cigna
1 Medicare
CPT Codes Commonly Billed with O99.891
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 O99.891
Other codes in section O94-O9A (Other obstetric conditions, not elsewhere classified).
ICD-10 O99.891, Billing FAQ
Is ICD-10 code O99.891 billable? +
Yes, O99.891 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 2, 2026.
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