ICD-10 O01.0
Billable / SpecificClassical hydatidiform mole
About ICD-10-CM O01.0
ICD-10-CM code O01.0 represents Classical hydatidiform mole. This is a billable/specific code in the Pregnancy, Childbirth, and Puerperium chapter (block O01). The 2026 edition of ICD-10-CM O01.0 became effective on October 1, 2025.
Coding Tips for O01.0
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 O01.0. Per CMS ICD-10-CM Tabular 2026.
- Complete hydatidiform mole
Medicare LCD Coverage for O01.0
Local Coverage Determinations (LCDs) from CMS MACs that list O01.0 as a covered diagnosis.
Showing top 10 of 15 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing O01.0.
2 Cigna
1 Medicare
2 Aetna
CPT Codes Commonly Billed with O01.0
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 O01.0 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 |
|---|---|---|
| O01.0 | 630 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To O01.0
Other codes in section O00-O08 (Pregnancy with abortive outcome).
ICD-10 O01.0, Billing FAQ
Is ICD-10 code O01.0 billable? +
Yes, O01.0 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 O01.0? +
ICD-10 O01.0 includes: Complete hydatidiform mole.
What ICD-9 codes does O01.0 map to? +
Per CMS GEMs, O01.0 maps to ICD-9 codes: 630. Useful for legacy data review and historical claim analysis.
Get the full PayerReady toolkit
Free access to CPT/ICD-10 lookup, denial appeals, fee comparator, and claim auditing with credentialing enrollment.
Start free →Run this code through our claim audit tool
Check NCCI bundling, MUE limits, and modifier logic before submission.
Try the auditor →Did this page help?
Quick signal so we know what to improve.
If you want a code reference page that doesn't exist yet, email coding@payerready.com.
Tell us what's missing or wrong: coding@payerready.com. We respond within 5 business days.
Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
Powered by 11K CPT · 98K ICD-10 · 860K MPFS rates · 4.5M NCCI edits · 9.5M NPIs. Our data methodology · About our coding team