ICD-10 O75.4
Billable / SpecificOther complications of obstetric surgery and procedures
About ICD-10-CM O75.4
ICD-10-CM code O75.4 represents Other complications of obstetric surgery and procedures. This is a billable/specific code in the Pregnancy, Childbirth, and Puerperium chapter (block O75). The 2026 edition of ICD-10-CM O75.4 became effective on October 1, 2025.
Coding Tips for O75.4
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 O75.4. Per CMS ICD-10-CM Tabular 2026.
- Cardiac arrest following obstetric surgery or procedures
- Cardiac failure following obstetric surgery or procedures
- Cerebral anoxia following obstetric surgery or procedures
- Pulmonary edema following obstetric surgery or procedures
Type 2 Excludes
Not included here, the excluded code is not part of O75.4, but a patient may have both conditions at the same time. Both codes may be coded together when applicable.
- complications of anesthesia during labor and delivery (O74.-)
- disruption of obstetrical (surgical) wound (O90.0-O90.1)
- hematoma of obstetrical (surgical) wound (O90.2)
- infection of obstetrical (surgical) wound (O86.0-)
Use Additional Code
When coding O75.4, also report these additional codes when applicable.
- code to identify specific complication
Medicare LCD Coverage for O75.4
Local Coverage Determinations (LCDs) from CMS MACs that list O75.4 as a covered diagnosis.
Showing top 7. Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing O75.4.
2 Medicare
CPT Codes Commonly Billed with O75.4
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 O75.4 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 |
|---|---|---|
| O75.4 | 66941 | 10000 |
| O75.4 | 66942 | 10000 |
| O75.4 | 66944 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To O75.4
Other codes in section O60-O77 (Complications of labor and delivery).
ICD-10 O75.4, Billing FAQ
Is ICD-10 code O75.4 billable? +
Yes, O75.4 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 O75.4? +
ICD-10 O75.4 includes: Cardiac arrest following obstetric surgery or procedures; Cardiac failure following obstetric surgery or procedures; Cerebral anoxia following obstetric surgery or procedures, and 1 more clinical synonyms.
What codes are Type 2 Excludes for O75.4? +
Type 2 Excludes (may be coded together when both conditions exist): complications of anesthesia during labor and delivery (O74.-); disruption of obstetrical (surgical) wound (O90.0-O90.1); hematoma of obstetrical (surgical) wound (O90.2)
What ICD-9 codes does O75.4 map to? +
Per CMS GEMs, O75.4 maps to ICD-9 codes: 66941, 66942, 66944. 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 June 1, 2026.
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