MCMedicalCodingSoftware
O01.9

O01.9: Hydatidiform mole, unspecified

Billable / specific codeICD-10-CM

O01.9 is a billable, specific ICD-10-CM code for hydatidiform mole, unspecified. It is valid for submission on a claim.

Check O01.9 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Trophoblastic disease NOS
  • Vesicular mole NOS

Excludes1 inherited from the categories above O01.9

A category’s note binds every code beneath it.

Written on O01: Hydatidiform mole

  • chorioadenoma (destruens) (D39.2)
  • malignant hydatidiform mole (D39.2)

Other codes that can never be billed with O01.9

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • O02.1Missed abortion
  • O02.8Other specified abnormal products of conception
  • C58Malignant neoplasm of placenta
  • D39.2Neoplasm of uncertain behavior of placenta

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

O01.9 is named in 4 Medicare coverage policies: 4 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A52450Billing and Coding: Paclitaxel (e.g., Taxol®/Abraxane ™)
  • A55717Billing and Coding: Lab: Flow Cytometry
  • A56464Billing and Coding: Flow Cytometry
  • A57689Billing and Coding: Lab: Flow Cytometry

Alphabetic index entries that lead here

  • Hydatidiform mole(benign) (complicating pregnancy) (delivered) (undelivered)
  • Trophoblastic disease
  • Mole›hydatid, hydatidiform(benign) (complicating pregnancy) (delivered) (undelivered)

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under O01

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.