O01.1Billable

Incomplete and partial hydatidiform mole

Chapter
15. Pregnancy, childbirth and the puerperium
Category
O01
Effective date
October 1, 2026

Related codes in category O01

O01Hydatidiform moleO01.0Classical hydatidiform moleYesO01.9Hydatidiform mole, unspecifiedYes

Frequently asked questions

What is ICD-10 code O01.1?

O01.1 is an ICD-10-CM diagnosis code for Incomplete and partial hydatidiform mole.

Is O01.1 a billable code?

Yes. O01.1 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is O01.1 in?

O01.1 falls under Chapter 15: Pregnancy, childbirth and the puerperium.

When did O01.1 become effective?

O01.1 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to O01.1?

O01.1 belongs to category O01, which includes 3 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.