O01.1
✓ BillableIncomplete and partial hydatidiform mole
Pregnancy, childbirth and the puerperium (O00-O9A)
❌ Excludes1
inheritedRules inherited from parent codes in the hierarchy.
- • chorioadenoma (destruens) (D39.2)
- • malignant hydatidiform mole (D39.2)
📋 Code Instructions
inherited- • code from category O08 to identify any associated complication.
Clinical Description
ICD-10-CM code O01.1 represents incomplete and partial hydatidiform mole. 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 5-character code at the 4th level of specificity. This is the most specific code available in this subcategory. Coders should note that O01.1 has 2 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.
Frequently Asked Questions
What is ICD-10 code O01.1?
ICD-10-CM code O01.1 is "Incomplete and partial hydatidiform mole". It belongs to the category: Pregnancy, childbirth and the puerperium (O00-O9A).
Is O01.1 a billable ICD-10 code?
Yes, O01.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
What codes are excluded with O01.1?
O01.1 has 2 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.
Related Codes in O01
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)