2026 ICD-10-CM Diagnosis Code O41Other disorders of amniotic fluid and membranes
O41 is a non-billable ICD-10-CM category code for other disorders of amniotic fluid and membranes, so it cannot be submitted on claims. Use a more specific code from this category instead, such as O41.00X0, O41.00X1, O41.00X2, and O41.00X3.
Code Identity
Code Classification
Specific Coding for Other disorders of amniotic fluid and membranesOverview
Non-specific codes like O41 require more characters. Use one of these billable codes instead:
O41.0 for Oligohydramnios
O41.00 for Oligohydramnios, unspecified trimester
O41.01 for Oligohydramnios, first trimester
O41.02 for Oligohydramnios, second trimester
O41.03 for Oligohydramnios, third trimester
O41.1 for Infection of amniotic sac and membranes
O41.10 for Infection of amniotic sac and membranes, unspecified
O41.12 for Chorioamnionitis
O41.14 for Placentitis
O41.8 for Other specified disorders of amniotic fluid and membranes
O41.8X for Other specified disorders of amniotic fluid and membranes
O41.9 for Disorder of amniotic fluid and membranes, unspecified
O41.90 for Disorder of amniotic fluid and membranes, unspecified, unspecified trimester
O41.91 for Disorder of amniotic fluid and membranes, unspecified, first trimester
O41.92 for Disorder of amniotic fluid and membranes, unspecified, second trimester
O41.93 for Disorder of amniotic fluid and membranes, unspecified, third trimester
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Type 1 Excludes
- encounter for suspected maternal and fetal conditions ruled out Z03.7
7th Character Note
- One of the following 7th characters is to be assigned to each code under category O41. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30
7th Character
- 0 - not applicable or unspecified
- 1 - fetus 1
- 2 - fetus 2
- 3 - fetus 3
- 4 - fetus 4
- 5 - fetus 5
- 9 - other fetus
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
Indicates that a seventh character is to be assigned to codes in a subcategory.
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.
Code HistoryHistory
Questions About O41Overview
Is O41 (Other disorders of amniotic fluid and membranes) a billable code?
No. This is a category header that groups the codes for other disorders of amniotic fluid and membranes, and headers cannot be submitted on claims. Claims for other disorders of amniotic fluid and membranes need a more specific code from this category, such as O41.00X0, O41.00X1, and O41.00X2.
