2027 ICD-10-CM Diagnosis Code O02.9Abnormal product of conception, unspecified
ICD-10-CM Codes›O00-O9A›O00-O08›O02
- Billable — Valid for Submission
- Not Chronic
O02.9 is a billable ICD-10-CM diagnosis code for abnormal product of conception, unspecified. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 817 through 819, 831 through 833. The code is restricted by the Medicare Code Editor to maternity cases (age 9 through 64). Coders also document this condition as disorder of embryonic structure. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Molar pregnancy and other abnormal products of conception.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for O02.9.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Disorder of embryonic structure
- Disorder of product of conception
- Finding of contents of vagina
- Products of conception in vagina
- Retained products of conception
- Retained products of conception not following miscarriage or termination of pregnancy
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to O02.9: its own notes plus those printed at O02, 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 O02.9, its category, or a range that includes it.
Excludes1 11
These codes carry an Excludes1 note naming O02.9: they are not reported together with it, unless the two conditions are unrelated.
- 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 O02.9: 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 O02.9 is one of the conditions named.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Abnormal, abnormality, abnormalities See Also: Anomaly;
product of conception O02.9
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Health Problems in Pregnancy
A health problem in pregnancy is any disease or condition that could affect your health or the health of your fetus. Some health problems may make it more likely that you will have a high-risk pregnancy. A high-risk pregnancy is one in which you, your fetus, or both are at higher risk for health problems than in a typical pregnancy.
The full article covers:
- What are health problems in pregnancy?
- What raises my risk for health problems during pregnancy?
- Can chronic health conditions cause problems in pregnancy?
- Can health problems in pregnancy be prevented?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert O02.9 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About O02.9Overview
What is the ICD-10 code for abnormal product of conception, unspecified?
The ICD-10-CM code for abnormal product of conception, unspecified is O02.9 (sometimes written as O029). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is O02.9 (Other abnormal products of conception) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report abnormal product of conception, unspecified on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does O02.9 group to?
When abnormal product of conception, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 833, 832, 831, 819, 818, 817, with relative weights from 0.5000 to 1.7586 depending on complications. Higher weights mean higher Medicare reimbursement.
Who can O02.9 be reported for?
The Medicare Code Editor checks abnormal product of conception, unspecified against patient demographics: this code is intended for maternity cases (age 9 through 64). Claims outside these limits are flagged as inconsistent.
Can O02.9 be reported with a code from O31.0?
Not as a rule. The Excludes1 note at O02, which applies to O02.9, lists "papyraceous fetus (O31.0-)". 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).
