ICD-10 O75.82
Billable / SpecificOnset (spontaneous) of labor after 37 completed weeks of gestation but before 39 completed weeks gestation, with delivery by (planned) cesarean section
About ICD-10-CM O75.82
ICD-10-CM code O75.82 represents Onset (spontaneous) of labor after 37 completed weeks of gestation but before 39 completed weeks gestation, with delivery by (planned) cesarean section. This is a billable/specific code in the Pregnancy, Childbirth, and Puerperium chapter (block O75). The 2026 edition of ICD-10-CM O75.82 became effective on October 1, 2025.
Coding Tips for O75.82
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.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under O75.82. Per CMS ICD-10-CM Tabular 2026.
- Delivery by (planned) cesarean section occurring after 37 completed weeks of gestation but before 39 completed weeks gestation due to (spontaneous) onset of labor
Coding Notes
Code First
- to specify reason for planned cesarean section such as:
- cephalopelvic disproportion (normally formed fetus) (O33.9)
- previous cesarean delivery (O34.21-)
Medicare LCD Coverage for O75.82
Local Coverage Determinations (LCDs) from CMS MACs that list O75.82 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 O75.82.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but O75.82 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with O75.82
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 O75.82 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 |
|---|---|---|
| O75.82 | 64981 | 10000 |
| O75.82 | 64982 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To O75.82
Other codes in section O60-O77 (Complications of labor and delivery).
ICD-10 O75.82, Billing FAQ
Is ICD-10 code O75.82 billable? +
Yes, O75.82 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to O75.82? +
ICD-10 O75.82 includes: Delivery by (planned) cesarean section occurring after 37 completed weeks of gestation but before 39 completed weeks gestation due to (spontaneous) onset of labor.
What ICD-9 codes does O75.82 map to? +
Per CMS GEMs, O75.82 maps to ICD-9 codes: 64981, 64982. 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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