ICD-10 O99.810
Billable / SpecificAbnormal glucose complicating pregnancy
About ICD-10-CM O99.810
ICD-10-CM code O99.810 represents Abnormal glucose complicating pregnancy. This is a billable/specific code in the Pregnancy, Childbirth, and Puerperium chapter (block O99). The 2026 edition of ICD-10-CM O99.810 became effective on October 1, 2025.
Coding Tips for O99.810
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 O99.810
Local Coverage Determinations (LCDs) from CMS MACs that list O99.810 as a covered diagnosis.
Showing top 2. Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing O99.810.
2 Aetna
1 Medicare
CPT Codes Commonly Billed with O99.810
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 59400 Vaginal delivery global — uncomplicated delivery, C-section, single liveborn, post-term, preterm labor, premature rupture membranes, small for gestational age, supervision high-risk pregnancy OB/GYN
Convert O99.810 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 |
|---|---|---|
| O99.810 | 64881 | 10000 |
| O99.810 | 64883 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To O99.810
Other codes in section O94-O9A (Other obstetric conditions, not elsewhere classified).
ICD-10 O99.810, Billing FAQ
Is ICD-10 code O99.810 billable? +
Yes, O99.810 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What CPT codes are commonly billed with O99.810? +
Procedures frequently paired with O99.810 include: 59400.
What ICD-9 codes does O99.810 map to? +
Per CMS GEMs, O99.810 maps to ICD-9 codes: 64881, 64883. 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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