ICD-10 O73
Non-Billable HeaderRetained placenta and membranes, without hemorrhage
About ICD-10-CM O73
ICD-10-CM code O73 represents Retained placenta and membranes, without hemorrhage. This is a non-billable header code in the Pregnancy, Childbirth, and Puerperium chapter (block O73). The 2026 edition of ICD-10-CM O73 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 O73
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 O73. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- placenta accreta (O43.21-)
- placenta increta (O43.22-)
- placenta percreta (O43.23-)
Medicare LCD Coverage for O73
Local Coverage Determinations (LCDs) from CMS MACs that list O73 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 O73.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but O73 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with O73
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 O73
Other codes in section O60-O77 (Complications of labor and delivery).
ICD-10 O73, Billing FAQ
Is ICD-10 code O73 billable? +
No, O73 is a non-billable header code. Use a more specific child code from block O73 when submitting claims.
What codes are Type 1 Excludes for O73? +
Type 1 Excludes (never code together with O73): placenta accreta (O43.21-); placenta increta (O43.22-); placenta percreta (O43.23-)
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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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