ICD-10-CM
ICD-10 code for Hydatidiform mole: O01.9
The ICD-10-CM index points "Hydatidiform mole" to O01 (Hydatidiform mole), a header that is not billable. When nothing more specific is documented, the billable code is O01.9, Hydatidiform mole, unspecified.
Source: CDC ICD-10-CM FY2027 Alphabetic Index file dated June 16, 2026. Publisher page
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Index subterms
A header groups codes and is not billed. A billable code is one you can report.
- O01.0classical, Classical hydatidiform moleBillable
- O01.0complete, Classical hydatidiform moleBillable
- O01.1incomplete, Incomplete and partial hydatidiform moleBillable
- D39.2invasive, Neoplasm of uncertain behavior of placentaBillable
- D39.2malignant, Neoplasm of uncertain behavior of placentaBillable
- O01.1partial, Incomplete and partial hydatidiform moleBillable
More specific codes in O01
A header groups codes and is not billed. A billable code is one you can report.
Use additional code
The CDC tabular list says to add the code named here after this one when it applies.
From O01. A note on a category applies to every code under it.
Use additional code from category O08 to identify any associated complication.
Excludes1
Excludes1 means these codes are not reported together.
From O01. A note on a category applies to every code under it.
Related conditions
Related pages
- O01.9 code detailsNotes, nearby codes, CMS-HCC group
- Category O01Every code under it
- Chapter 15Pregnancy, childbirth and the puerperium
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Hydatidiform mole?
The ICD-10-CM index points "Hydatidiform mole" to O01 (Hydatidiform mole), a header that is not billable. When nothing more specific is documented, the billable code is O01.9, Hydatidiform mole, unspecified.
Is O01.9 billable?
Yes. O01.9 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What documentation notes apply to O01.9?
The CDC tabular list gives 2 Excludes1 notes (not coded together), 1 "use additional code" note for O01.9 and the categories above it. They are listed on this page.
What chapter is O01.9 in?
Chapter 15. Pregnancy, childbirth and the puerperium.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.