2027 ICD-10-CM Diagnosis Code O01Hydatidiform mole
O01 is a non-billable ICD-10-CM category code for hydatidiform mole, so it cannot be submitted on claims. Use a more specific code from this category instead, such as O01.0, O01.1, and O01.9.
Code Identity
Code Classification
Specific Coding for Hydatidiform moleOverview
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to O01: its own notes plus those printed at block O00-O08 and Chapter 15. A note printed at a category, block or chapter applies to every code under it.
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
- supervision of normal pregnancy (Z34.-)
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
Use Additional Code
Add a second code, after this one, to fully describe the condition.
- code from category O08 to identify any associated complication.
- code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
Notes
General instructions on how these codes are used.
- CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
- Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
- Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
- 1st trimester- less than 14 weeks 0 days
- 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
- 3rd trimester- 28 weeks 0 days until delivery
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name O01, its category, or a range that includes it.
Excludes1 13
These codes carry an Excludes1 note naming O01: they are not reported together with it, unless the two conditions are unrelated.
- O02.1 Missed abortionmissed abortion with hydatidiform mole (O01.-)
- O02.8 Other specified abnormal products of conceptionabnormal products of conception with hydatidiform mole (O01.-)
- G08 Intracranial and intraspinal phlebitis and thrombophlebitis
- K65 Peritonitis
- Block N70-N77 Inflammatory diseases of female pelvic organs
- R34 Anuria and oliguria
- R55 Syncope and collapse
- R57 Shock, not elsewhere classified
- T79.0 Air embolism (traumatic)
- T79.1 Fat embolism (traumatic)
- T79.4 Traumatic shock
- T81.1 Postprocedural shock
- T81.7 Vascular complications following a procedure, not elsewhere classified
Excludes2 6
These codes carry an Excludes2 note naming O01: its condition is not part of those codes, and both may be reported when the patient has both.
- D65 Disseminated intravascular coagulation [defibrination syndrome]
- D68 Other coagulation defects
- I26 Pulmonary embolism
- K72 Hepatic failure, not elsewhere classified
- Block N17-N19 Acute kidney failure and chronic kidney disease
- Block N30-N39 Other diseases of the urinary system
Code First 6
These codes say to code first a condition named in the note, and O01 is one of the conditions named.
Clinical InformationClinical
Hydatidiform Mole
trophoblastic hyperplasia associated with normal gestation, or molar pregnancy. it is characterized by the swelling of the chorionic villi and elevated human chorionic gonadotropin. hydatidiform moles or molar pregnancy may be categorized as complete or partial based on their gross morphology, histopathology, and karyotype.
Patient EducationClinical
Tumors and Pregnancy
Tumors during pregnancy are rare, but they can happen. Tumors can be either benign (not cancer) or malignant (cancer). The most common cancers in pregnancy include breast cancer, thyroid cancer, cervical cancer, lymphoma, and melanoma. Cancer itself rarely harms the fetus, and some cancer treatments are safe during pregnancy.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Code HistoryHistory
Questions About O01Overview
What is the ICD-10 code for hydatidiform mole?
O01 is the ICD-10-CM category for hydatidiform mole, but it is a non-billable header: claims need a more specific code from this category, listed on this page.
Is O01 (Hydatidiform mole) a billable code?
No. This is a category header that groups the codes for hydatidiform mole, and headers cannot be submitted on claims. Claims for hydatidiform mole need a more specific code from this category, such as O01.0, O01.1, and O01.9.
Can O01 be reported with D39.2?
Not as a rule. The Excludes1 note on O01 lists "chorioadenoma (destruens) (D39.2)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
Does O01 need an additional code?
When the condition applies, yes. The Use Additional Code note reads: code from category O08 to identify any associated complication.. The additional code is reported after O01.
