ICD-10-CM 2027
ICD-10 code for trophoblastic disease
From the official ICD-10-CM alphabetic index entry “Trophoblastic disease”. Page updated September 29, 2026.
About coding trophoblastic disease
The ICD-10-CM code for trophoblastic disease is O01.9 (Hydatidiform mole, unspecified).
Within O01, choose O01.9 (unspecified) only when documentation doesn't support a more specific option: classical hydatidiform mole (O01.0) and incomplete and partial hydatidiform mole (O01.1).
Use an additional code from category O08 to identify any associated complication.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Common questions about trophoblastic disease ICD-10 codes
What is the ICD-10 code for trophoblastic disease?
- O01.9 — Hydatidiform mole, unspecified.
Is O01.9 billable?
- Yes. O01.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can O01.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict O01.9 as a principal diagnosis.
Is O01.9 a CC or MCC?
- No. O01.9 is neither a CC nor an MCC under MS-DRG v44.0.