O29.91
✓ BillableUnspecified complication of anesthesia during pregnancy, first trimester
Pregnancy, childbirth and the puerperium (O00-O9A)
⚠️ Excludes2
inheritedRules inherited from parent codes.
- • complications of anesthesia during labor and delivery (O74.-)
- • complications of anesthesia during the puerperium (O89.-)
📋 Code Instructions
inherited- • code, if necessary, to identify the complication
Clinical Description
ICD-10-CM code O29.91 represents unspecified complication of anesthesia during pregnancy, first trimester. This code falls under the Pregnancy, childbirth and the puerperium (O00-O9A) classification. It is a billable/specific code valid for HIPAA-covered transactions as of October 1, 2025 (FY2026). This code can be used to indicate a diagnosis for reimbursement purposes on insurance claims.
This is a 6-character code at the 5th level of specificity. This is the most specific code available in this subcategory.
Frequently Asked Questions
What is ICD-10 code O29.91?
ICD-10-CM code O29.91 is "Unspecified complication of anesthesia during pregnancy, first trimester". It belongs to the category: Pregnancy, childbirth and the puerperium (O00-O9A).
Is O29.91 a billable ICD-10 code?
Yes, O29.91 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Can O29.91 be coded with other codes?
O29.91 has 2 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.
Related Codes in O29.9
Other codes in the same category that may be relevant for differential coding:
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Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)